From 9562111fc1b21a84c3286c894d82e19993286462 Mon Sep 17 00:00:00 2001 From: Liki Du Date: Thu, 2 Jan 2025 23:46:07 -0800 Subject: [PATCH 01/24] Add sysvar refs --- TOC.md | 1 + system-variables-references.md | 2520 ++++++++++++++++++++++++++++++++ 2 files changed, 2521 insertions(+) create mode 100644 system-variables-references.md diff --git a/TOC.md b/TOC.md index 7fbb82843c359..f9fcbaa8fabf4 100644 --- a/TOC.md +++ b/TOC.md @@ -685,6 +685,7 @@ - [Introduction](/tidb-distributed-execution-framework.md) - [TiDB Global Sort](/tidb-global-sort.md) - [System Variables](/system-variables.md) + - [System Variables References](/system-variables-references.md) - [Server Status Variables](/status-variables.md) - Configuration File Parameters - [tidb-server](/tidb-configuration-file.md) diff --git a/system-variables-references.md b/system-variables-references.md new file mode 100644 index 0000000000000..703917f5deab1 --- /dev/null +++ b/system-variables-references.md @@ -0,0 +1,2520 @@ +--- +title: System Variables References +summary: A list of all TiDBsystem variables and their references in the documentation. +--- + +# System Variables References + +This document lists all TiDB system variables and the files that reference them in the documentation. View the [System Variables](/system-variables.md) for more details of each variable. + +## Variables + +### allow_auto_random_explicit_insert + +Referenced in: +- [AUTO_RANDOM](/auto-random.md) +- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) +- [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) +- [Insert Data](/develop/dev-guide-insert-data.md) + +### authentication_ldap_sasl_auth_method_name + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_bind_base_dn + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_bind_root_dn + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_bind_root_pwd + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_ca_path + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_init_pool_size + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_max_pool_size + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_server_host + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_server_port + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_sasl_tls + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_auth_method_name + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_bind_base_dn + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_bind_root_dn + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_bind_root_pwd + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_ca_path + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_init_pool_size + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_max_pool_size + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_server_host + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_server_port + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### authentication_ldap_simple_tls + +Referenced in: +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### auto_increment_increment + +Referenced in: +- [AUTO_RANDOM](/auto-random.md) +- [Auto-Increment](/auto-increment.md) +- [Error Codes](/error-codes.md) +- [Bidirectional Replication Between TiDB Clusters](/ticdc/ticdc-bidirectional-replication.md) +- [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) +- [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) + +### auto_increment_offset + +Referenced in: +- [AUTO_RANDOM](/auto-random.md) +- [Auto-Increment](/auto-increment.md) +- [Error Codes](/error-codes.md) +- [Bidirectional Replication Between TiDB Clusters](/ticdc/ticdc-bidirectional-replication.md) +- [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) +- [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) + +### autocommit + +Referenced in: +- [Transaction Overview](/transaction-overview.md) +- [Pessimistic Transaction](/pessimistic-transaction.md) +- [Temporary Tables](/temporary-tables.md) +- [Non-Transactional DML](/non-transactional-dml.md) +- [Sample Application: Use Hibernate](/develop/dev-guide-sample-application-java-hibernate.md) +- [Sample Application: Use MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) +- [TiDB 6.5.3 Release Notes](/releases/release-6.5.3.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + +### block_encryption_mode + +Referenced in: +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) + +### character_set_client + +Referenced in: +- [GBK Character Set Support](/character-set-gbk.md) +- [Dumpling Overview](/dumpling-overview.md) +- [Information Schema](/information-schema/information-schema-views.md) +- [Character Sets and Collations](/character-set-and-collation.md) +- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [Views](/views.md) +- [Use Views](/develop/dev-guide-use-views.md) + +### character_set_connection + +Referenced in: +- [GBK Character Set Support](/character-set-gbk.md) +- [Dumpling Overview](/dumpling-overview.md) +- [Character Sets and Collations](/character-set-and-collation.md) +- [SET NAMES](/sql-statements/sql-statement-set-names.md) + +### character_set_database + +Referenced in: +- [Character Sets and Collations](/character-set-and-collation.md) +- [SET NAMES](/sql-statements/sql-statement-set-names.md) + +### character_set_results + +Referenced in: +- [Character Sets and Collations](/character-set-and-collation.md) +- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) + +### character_set_server + +Referenced in: +- [Character Sets and Collations](/character-set-and-collation.md) +- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) + +### collation_connection + +Referenced in: +- [String Functions](/functions-and-operators/string-functions.md) +- [Information Schema](/information-schema/information-schema-views.md) +- [Character Sets and Collations](/character-set-and-collation.md) +- [Views](/views.md) +- [Use Views](/develop/dev-guide-use-views.md) + +### collation_database + +Referenced in: +- [Character Sets and Collations](/character-set-and-collation.md) + +### collation_server + +Referenced in: +- [Character Sets and Collations](/character-set-and-collation.md) +- [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) + +### cte_max_recursion_depth + +Referenced in: +- [High Concurrency Best Practices](/best-practices/high-concurrency-best-practices.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) + +### datadir + +Referenced in: +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) + +### ddl_slow_threshold + +Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) + +### default_authentication_plugin + +Referenced in: +- [TiDB Features](/basic-features.md) +- [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) + +### default_collation_for_utf8mb4 + +Referenced in: +- [Character Sets and Collations](/character-set-and-collation.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) + +### default_password_lifetime + +Referenced in: +- [Password Management](/password-management.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### default_week_format + +Referenced in: +- [Date and Time Functions](/functions-and-operators/date-and-time-functions.md) +- [TiDB 4.0.11 Release Notes](/releases/release-4.0.11.md) +- [TiDB 2.1.7 Release Notes](/releases/release-2.1.7.md) + +### disconnect_on_expired_password + +Referenced in: +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### div_precision_increment + +Referenced in: +- [Numeric Functions and Operators](/functions-and-operators/numeric-functions-and-operators.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### error_count + +Referenced in: +- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md): Added support for this variable. + +### foreign_key_checks + +Referenced in: +- [Foreign Key](/foreign-key.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### group_concat_max_len + +Referenced in: +- [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) +- [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) + +### have_openssl + +Referenced in: +- [Certificate-based Authentication](/certificate-authentication.md) + +### have_ssl + +Referenced in: +- [Certificate-based Authentication](/certificate-authentication.md) + +### hostname + +Referenced in: +- [The mysql.user Table](/mysql-schema/mysql-schema-user.md) +- [Best Practices for HAProxy](/best-practices/haproxy-best-practices.md) + +### identity + +Referenced in: +- [Configure SSO for TiDB Dashboard](/dashboard/dashboard-session-sso.md) +- [Secure TiDB Dashboard](/dashboard/dashboard-ops-security.md) +- [Enable TLS Between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) +- [Password Management](/password-management.md) + +### init_connect + +Referenced in: +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md): Improved MySQL compatibility with parsing check +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md): Added as a new feature +- [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md): Added support for this system variable +- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md): Added support for this system variable and associated features + + +### innodb_lock_wait_timeout + +Referenced in: +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) +- [Pessimistic Transaction Model](/pessimistic-transaction.md) +- [TiKV Configuration File](/tikv-configuration-file.md) +- [TiDB 3.0.6 Release Notes](/releases/release-3.0.6.md) + +### interactive_timeout + +Referenced in: +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [TiDB FAQs](/faq/manage-cluster-faq.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) + +### last_insert_id + +Referenced in: +- [AUTO_RANDOM](/auto-random.md) +- [Information Functions](/functions-and-operators/information-functions.md) +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [TiDB 2.1 RC2 Release Notes](/releases/release-2.1-rc.2.md) +- [TiDB 2.1.17 Release Notes](/releases/release-2.1.17.md) +- [TiDB 3.1.0-rc Release Notes](/releases/release-3.1.0-rc.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [Build a Simple CRUD App with TiDB and Ruby](/develop/dev-guide-sample-application-ruby-mysql2.md) + +### last_plan_from_binding + +Referenced in: +- [SQL Plan Management](/sql-plan-management.md) +- [TiDB 4.0.12 Release Notes](/releases/release-4.0.12.md) + +### last_plan_from_cache + +Referenced in: +- [SQL Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [SQL Non-prepared Plan Cache](/sql-non-prepared-plan-cache.md) +- [Choose Indexes](/choose-index.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) + +### last_sql_use_alloc + +Referenced in: +- [What's New in TiDB 6.4.0](/releases/release-6.4.0.md): Added support for this variable. + +### license + +Referenced in: +- [TiDB Data Migration Overview](/dm/dm-overview.md) + +### max_allowed_packet + +Referenced in: +- [TiDB Data Migration FAQs](/dm/dm-faq.md) +- [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) +- [DM Task Configuration File](/dm/task-configuration-file-full.md) +- [TiDB Cloud Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) +- [Release Notes](/releases/release-6.1.0.md) +- [Release Notes](/releases/release-5.2.4.md) +- [Release Notes](/releases/release-3.0.2.md) +- [Release Notes](/releases/release-2.1.5.md) +- [Release Notes](/releases/release-2.1-rc.2.md) +- [Release Notes](/releases/release-2.0.6.md) + +### max_connections + +Referenced in: +- [TiDB FAQs](/faq/manage-cluster-faq.md) +- [Dynamic Configuration](/dynamic-config.md) +- [Integrate ProxySQL with TiDB](/develop/dev-guide-proxysql-integration.md) +- [TiDB Cloud Data Migration Precheck and Troubleshooting](/tidb-cloud/tidb-cloud-dm-precheck-and-troubleshooting.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### max_execution_time + +Referenced in: +- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) +- [SQL Plan Management](/sql-plan-management.md) +- [SQL Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Optimizer Hints](/optimizer-hints.md) +- [Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [What's New in TiDB 6.4.0](/releases/release-6.4.0.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) +- [TiDB 2.1.14 Release Notes](/releases/release-2.1.14.md) + +### max_prepared_stmt_count + +Referenced in: +- [PREPARE | TiDB SQL Statement Reference](/sql-statements/sql-statement-prepare.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) + +### mpp_exchange_compression_mode + +Referenced in: +- [MPP Query Execution](/explain-mpp.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### mpp_version + +Referenced in: +- [MPP Query Execution](/explain-mpp.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### password_history + +Referenced in: +- [Password Management](/password-management.md) +- [The MYSQL Schema](/mysql-schema/mysql-schema.md) +- [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### password_reuse_interval + +Referenced in: +- [Password Management](/password-management.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### pd_enable_follower_handle_region + +Referenced in: +- [Tune Region Performance](/tune-region-performance.md) +- [TiDB Features](/basic-features.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) + +### plugin_dir + +Referenced in: +- [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) + +### plugin_load + +Referenced in: +- [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) + +### port + +Referenced in: +- [Migrate Data from SQL Files to TiDB](/migrate-from-sql-files-to-tidb.md) +- [TiFlash Deployment Topology](/tiflash-deployment-topology.md) +- [TSO Configuration File](/tso-configuration-file.md) + +### rand_seed1 + +Referenced in: +- No direct references found + +### rand_seed2 + +Referenced in: +- No direct references found + +### require_secure_transport + +Referenced in: +- [Enable TLS Between Clients and Servers](/enable-tls-between-clients-and-servers.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) +- [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [Connect to TiDB Dedicated via TLS](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) + +### skip_name_resolve + +Referenced in: +- No direct references found + +### socket + +Referenced in: +- [HAProxy Best Practices](/best-practices/haproxy-best-practices.md) +- [SHOW CONFIG](/sql-statements/sql-statement-show-config.md) + +### sql_mode + +Referenced in: +- [Date and Time Types](/data-type-date-and-time.md) +- [Avoid Unstable Result Set](/develop/dev-guide-unstable-result-set.md) +- [DM Open API](/dm/dm-open-api.md) +- [DM Task Configuration File](/dm/task-configuration-file-full.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) +- [Miscellaneous Functions](/functions-and-operators/miscellaneous-functions.md) +- [Precision Math](/functions-and-operators/precision-math.md) +- [Partitioned Table](/partitioned-table.md) +- [Privilege Management](/privilege-management.md) +- [Schema Object Names](/schema-object-names.md) +- [SQL Mode](/sql-mode.md) +- [SET](/sql-statements/sql-statement-set-variable.md) +- [SHOW ERRORS](/sql-statements/sql-statement-show-errors.md) +- [SHOW WARNINGS](/sql-statements/sql-statement-show-warnings.md) +- [TiDB Lightning FAQ](/tidb-lightning/tidb-lightning-faq.md) +- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) +- [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) +- [User Account Management](/user-account-management.md) + +### sql_require_primary_key + +Referenced in: +- [DM Task Configuration File](/dm/task-configuration-file-full.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md): Added support for this variable. + +### sql_select_limit + +Referenced in: +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md): Added support for this variable as session and global variable. + +### ssl_ca + +Referenced in: +- [Certificate-Based Authentication](/certificate-authentication.md) +- [Build a Simple CRUD App with Node.js and MySQL (mysql2)](/develop/dev-guide-sample-application-nodejs-mysql2.md) +- [Build a Simple CRUD App with Node.js and MySQL (mysql)](/develop/dev-guide-sample-application-nodejs-mysqljs.md) +- [Build a Simple CRUD App with Node.js and Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) +- [Build a Simple CRUD App with Node.js and TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) +- [Build a Simple CRUD App with Python and Django](/develop/dev-guide-sample-application-python-django.md) +- [Build a Simple CRUD App with Python and MySQL Connector](/develop/dev-guide-sample-application-python-mysql-connector.md) +- [Build a Simple CRUD App with Python and Peewee](/develop/dev-guide-sample-application-python-peewee.md) +- [Build a Simple CRUD App with Python and PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) +- [Build a Simple CRUD App with Python and SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) +- [Build a Simple CRUD App with Ruby and mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) +- [Get Started with Vector Search Using Python](/vector-search-get-started-using-python.md) +- [Integrate Vector Search with Jina AI Embedding](/vector-search-integrate-with-jinaai-embedding.md) +- [Integrate Vector Search with LangChain](/vector-search-integrate-with-langchain.md) +- [Integrate Vector Search with LlamaIndex](/vector-search-integrate-with-llamaindex.md) +- [Integrate Vector Search with SQLAlchemy](/vector-search-integrate-with-sqlalchemy.md) + +### ssl_cert + +Referenced in: +- [Certificate-Based Authentication](/certificate-authentication.md) + +### ssl_key + +Referenced in: +- [Certificate-Based Authentication](/certificate-authentication.md) + +### system_time_zone + +Referenced in: +- [Configure Time Zone](/configure-time-zone.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) + +### time_zone + +Referenced in: +- [Configure Time Zone](/configure-time-zone.md) +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [Date and Time Types](/data-type-date-and-time.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_adaptive_closest_read_threshold + +Referenced in: +- [Follower Read](/follower-read.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### tidb_allow_tiflash_cop + +Referenced in: +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tidb_allow_batch_cop + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_allow_fallback_to_tikv + +Referenced in: +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) + +### tidb_allow_function_for_expression_index + +Referenced in: +- [Basic Features](/basic-features.md) +- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_allow_mpp + +Referenced in: +- [MPP Query Execution](/explain-mpp.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) +- [Explore HTAP](/explore-htap.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB TPC-H Performance Test Report -- v5.4](/benchmark/v5.4-performance-benchmarking-with-tpch.md) + +### tidb_allow_remove_auto_inc + +Referenced in: +- [Auto-increment](/auto-increment.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [MySQL Compatibility](/mysql-compatibility.md) +- [Third-Party Tools Compatibility](/develop/dev-guide-third-party-tools-compatibility.md) +- [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) +- [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) + +### tidb_analyze_column_options + +Referenced in: +- [TiDB Performance Tuning Configuration](/tidb-performance-tuning-config.md) +- [TiUP Bench User Guide](/tiup/tiup-bench.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [Benchmark TiDB Using ClickHouse](/benchmark/benchmark-tidb-using-ch.md) + +### tidb_analyze_distsql_scan_concurrency + +Referenced in: +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) + +### tidb_analyze_partition_concurrency + +Referenced in: +- [Statistics](/statistics.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) + +### tidb_analyze_version + +Referenced in: +- [Troubleshoot TiDB Out of Memory (OOM) Errors](/troubleshoot-tidb-oom.md) +- [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) +- [Statistics](/statistics.md) +- [Configure Memory Usage](/configure-memory-usage.md) +- [SHOW ANALYZE STATUS | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-analyze-status.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_analyze_skip_column_types + +Referenced in: +- [Statistics](/statistics.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + +### tidb_auto_analyze_end_time + +Referenced in: +- [Troubleshoot TiDB CPU Performance Issues](/troubleshoot-cpu-issues.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Statistics](/statistics.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) + +### tidb_auto_analyze_partition_batch_size + +Referenced in: +- [Statistics](/statistics.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) + +### tidb_auto_analyze_ratio + +Referenced in: +- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_auto_analyze_start_time + +Referenced in: +- [Statistics](/statistics.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Troubleshoot TiDB CPU Performance Issues](/troubleshoot-cpu-issues.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) + +### tidb_auto_build_stats_concurrency + +Referenced in: +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### tidb_backoff_lock_fast + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_backoff_weight + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) + +### tidb_batch_commit + +Referenced in: +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) + +### tidb_batch_delete + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_batch_insert + +Referenced in: +- [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) + +### tidb_batch_pending_tiflash_count + +Referenced in: +- No direct references found + +### tidb_broadcast_join_threshold_count + +Referenced in: +- [MPP Execution](/explain-mpp.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_broadcast_join_threshold_size + +Referenced in: +- [MPP Execution](/explain-mpp.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_build_stats_concurrency + +Referenced in: +- [Statistics](/statistics.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Cloud v8.1 Performance Benchmarking with TPC-C](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v6.5 Performance Benchmarking with TPC-C](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.1 Performance Benchmarking with TPC-C](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.5 Performance Benchmarking with TPC-C](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 4.0 Performance Benchmarking with TPC-H](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_build_sampling_stats_concurrency + +Referenced in: +- [Statistics](/statistics.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) + +### tidb_capture_plan_baselines + +Referenced in: +- [SQL Plan Management](/sql-plan-management.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) + +### tidb_cdc_write_source + +Referenced in: +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### tidb_check_mb4_value_in_utf8 + +Referenced in: +- [Character Set and Collation](/character-set-and-collation.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Upgrade FAQs](/faq/upgrade-faq.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_checksum_table_concurrency + +Referenced in: +- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_committer_concurrency + +Referenced in: +- [Grafana TiDB Dashboard](/grafana-tidb-dashboard.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) + +### tidb_config + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_constraint_check_in_place + +Referenced in: +- [Constraints](/constraints.md) +- [Task Configuration File](/dm/task-configuration-file-full.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [Pessimistic Transaction Model](/pessimistic-transaction.md) +- [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) +- [COMMIT | TiDB SQL Statement Reference](/sql-statements/sql-statement-commit.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Transaction Overview](/transaction-overview.md) + +### tidb_constraint_check_in_place_pessimistic + +Referenced in: +- [Constraints](/constraints.md) +- [Dynamic Configuration](/dynamic-config.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [Pessimistic Transaction Model](/pessimistic-transaction.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [SAVEPOINT | TiDB SQL Statement Reference](/sql-statements/sql-statement-savepoint.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_cost_model_version + +Referenced in: +- [TiDB Cost Model](/cost-model.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_current_ts + +Referenced in: +- [Timestamp Oracle in TiDB](/tso.md) +- [External Timestamp in TiDB](/tidb-external-ts.md) +- [Disaster Recovery Secondary Cluster](/dr-secondary-cluster.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [FLASHBACK CLUSTER | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-cluster.md) +- [Check Upstream and Downstream Versions](/ticdc/ticdc-upstream-downstream-check.md) +- [SHOW BUILTINS | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-builtins.md) +- [TiCDC FAQs](/ticdc/ticdc-faq.md) + +### tidb_ddl_disk_quota + +Referenced in: +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_ddl_enable_fast_reorg + +Referenced in: +- [Basic Features](/basic-features.md) +- [Hardware and Software Requirements](/hardware-and-software-requirements.md) +- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) +- [ADMIN SHOW DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-show-ddl.md) +- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Check Environment Before Deployment](/check-before-deployment.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### tidb_ddl_error_count_limit + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) + +### tidb_ddl_flashback_concurrency + +Referenced in: +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_ddl_reorg_batch_size + +Referenced in: +- [TiDB DDL](/ddl-introduction.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [SQL Plan Management Best Practices](/explain-walkthrough.md) + +### tidb_ddl_reorg_priority + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) + +### tidb_ddl_reorg_worker_cnt + +Referenced in: +- [TiDB DDL](/ddl-introduction.md) +- [Troubleshoot CPU Issues](/troubleshoot-cpu-issues.md) +- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [ADMIN SHOW DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-show-ddl.md) +- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management Best Practices](/explain-walkthrough.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB Cloud Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [SQL Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [Online Workloads and ADD INDEX Operations](/benchmark/online-workloads-and-add-index-operations.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 2.1.4 Release Notes](/releases/release-2.1.4.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) + +### tidb_ddl_reorg_max_write_speed + +Referenced in: +- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) + +### tidb_enable_dist_task + +Referenced in: +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [Upgrade TiDB Using TiUP](/smooth-upgrade-tidb.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) +- [ADMIN SHOW DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-show-ddl.md) +- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [TiDB Global Sort](/tidb-global-sort.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) + +### tidb_cloud_storage_uri + +Referenced in: +- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) +- [TiDB Global Sort](/tidb-global-sort.md) + +### tidb_default_string_match_selectivity + +Referenced in: +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_disable_txn_auto_retry + +Referenced in: +- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) +- [TiDB Transaction Overview](/transaction-overview.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.0-rc.2 Release Notes](/releases/release-3.0.0-rc.2.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) +- [TiDB 2.0.5 Release Notes](/releases/release-2.0.5.md) +- [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB TPC-C Performance Test Report -- v3.0 vs v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) +- [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) + +### tidb_distsql_scan_concurrency + +Referenced in: +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [Dumpling Overview](/dumpling-overview.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [INFORMATION_SCHEMA SLOW_QUERY Table](/information-schema/information-schema-slow-query.md) +- [Statistics in TiDB](/statistics.md) +- [Configure Memory Usage](/configure-memory-usage.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_dml_batch_size + +Referenced in: +- [LOAD DATA | TiDB SQL Statement Reference](/sql-statements/sql-statement-load-data.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 4.0.0-beta Release Notes](/releases/release-4.0.0-beta.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_dml_type + +Referenced in: +- [Identify Slow Queries](/identify-expensive-queries.md) +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [IMPORT INTO vs TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [Basic Features](/basic-features.md) +- [Configure Memory Usage](/configure-memory-usage.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_enable_1pc + +Referenced in: +- [Transaction Overview](/transaction-overview.md) +- [Basic Features](/basic-features.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) + +### tidb_enable_async_commit + +Referenced in: +- [Transaction Overview](/transaction-overview.md) +- [Basic Features](/basic-features.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) + +### tidb_enable_analyze_snapshot + +Referenced in: +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_enable_auto_analyze + +Referenced in: +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [SQL Plan Replayer User Guide](/sql-plan-replayer.md) +- [Statistics in TiDB](/statistics.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_enable_auto_analyze_priority_queue + +Referenced in: +- [Statistics in TiDB](/statistics.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_enable_auto_increment_in_generated + +Referenced in: +- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) + +### tidb_enable_batch_dml + +Referenced in: +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) + +### tidb_enable_cascades_planner + +Referenced in: +- [Basic Features](/basic-features.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) + +### tidb_enable_check_constraint + +Referenced in: +- [INFORMATION_SCHEMA TIDB_CHECK_CONSTRAINTS Table](/information-schema/information-schema-tidb-check-constraints.md) +- [INFORMATION_SCHEMA CHECK_CONSTRAINTS Table](/information-schema/information-schema-check-constraints.md) +- [Constraints](/constraints.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + +### tidb_enable_chunk_rpc + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_enable_clustered_index + +Referenced in: +- [Clustered Indexes](/clustered-indexes.md) +- [Backup & Restore Overview](/br/backup-and-restore-overview.md) +- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) +- [TiDB 5.0 GA Release Notes](/releases/release-5.0.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [Schema Design Overview](/develop/dev-guide-schema-design-overview.md) +- [Create a Table](/develop/dev-guide-create-table.md) +- [TiDB TPC-C Performance Test Report -- v6.1 vs. v6.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3 vs. v5.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB TPC-C Performance Test Report -- v5.4 vs. v5.3](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB TPC-C Performance Test Report -- v5.2 vs. v5.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1 vs. v5.0](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) + +### tidb_enable_ddl + +Referenced in: +- [Dynamic Configuration](/dynamic-config.md) +- [Topology Reference](/tiup/tiup-cluster-topology-reference.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_enable_collect_execution_info + +Referenced in: +- [Dynamic Configuration](/dynamic-config.md) +- [INFORMATION_SCHEMA TIDB_INDEX_USAGE Table](/information-schema/information-schema-tidb-index-usage.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_enable_column_tracking + +Referenced in: +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_enable_enhanced_security + +Referenced in: +- [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) +- [Basic Features](/basic-features.md) +- [BACKUP | TiDB SQL Statement Reference](/sql-statements/sql-statement-backup.md) +- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) + +### tidb_enable_exchange_partition + +Referenced in: +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_enable_extended_stats + +Referenced in: +- [Extended Statistics](/extended-statistics.md) + +### tidb_enable_external_ts_read + +Referenced in: +- [External Timestamp Read](/tidb-external-ts.md) +- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_enable_fast_analyze + +Referenced in: +- [Basic Features](/basic-features.md) +- [Extended Statistics](/extended-statistics.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_enable_fast_table_check + +Referenced in: +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + +### tidb_enable_foreign_key + +Referenced in: +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_enable_gc_aware_memory_track + +Referenced in: +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### tidb_enable_global_index + +Referenced in: +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) + +### tidb_enable_lazy_cursor_fetch + +Referenced in: +- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) +- [Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) + +### tidb_enable_non_prepared_plan_cache + +Referenced in: +- [Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) + +### tidb_enable_non_prepared_plan_cache_for_dml + +Referenced in: +- [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_enable_noop_functions + +Referenced in: +- [Information Functions](/functions-and-operators/information-functions.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SELECT](/sql-statements/sql-statement-select.md) +- [Pessimistic Transaction Model](/pessimistic-transaction.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) + +### tidb_enable_noop_variables + +Referenced in: +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_enable_null_aware_anti_join + +Referenced in: +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_enable_outer_join_reorder + +Referenced in: +- [Join Reorder](/join-reorder.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) + +### tidb_enable_parallel_apply + +Referenced in: +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) +- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) + +### tidb_enable_pipelined_window_function + +Referenced in: +- [Window Functions](/functions-and-operators/window-functions.md) + +### tidb_enable_plan_replayer_capture + +Referenced in: +- [SQL Plan Management](/sql-plan-replayer.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_enable_plan_replayer_continuous_capture + +Referenced in: +- [SQL Plan Management](/sql-plan-replayer.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_enable_prepared_plan_cache + +Referenced in: +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [TiDB Dashboard FAQ](/dashboard/dashboard-faq.md) +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) + +### tidb_enable_prepared_plan_cache_memory_monitor + +Referenced in: +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_enable_pseudo_for_outdated_stats + +Referenced in: +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_enable_rate_limit_action + +Referenced in: +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [Configure Memory Usage](/configure-memory-usage.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_enable_reuse_chunk + +Referenced in: +- [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_enable_row_level_checksum + +Referenced in: +- [TiDB Functions](/functions-and-operators/tidb-functions.md) +- [Data Integrity Check](/ticdc/ticdc-integrity-check.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_enable_slow_log + +Referenced in: +- [TiDB Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Dynamic Configuration](/dynamic-config.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_enable_stmt_summary + +Referenced in: +- [SQL Plan Management](/sql-plan-management.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) + +### tidb_enable_strict_double_type_check + +Referenced in: +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) + +### tidb_enable_table_partition + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) +- [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) + +### tidb_enable_telemetry + +Referenced in: +- [TiDB 6.1.5 Release Notes](/releases/release-6.1.5.md) +- [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) + +### tidb_enable_tiflash_read_for_write_stmt + +Referenced in: +- [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_enable_top_sql + +Referenced in: +- [Top SQL](/dashboard/top-sql.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_enable_tso_follower_proxy + +Referenced in: +- [PD Microservices](/pd-microservices.md) +- [Basic Features](/basic-features.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) + +### tidb_enable_vectorized_expression + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.0.6 Release Notes](/releases/release-5.0.6.md) +- [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) +- [TiDB 4.0.16 Release Notes](/releases/release-4.0.16.md) +- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) +- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) + +### tidb_enforce_mpp + +Referenced in: +- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [Troubleshoot TiFlash](/tiflash/troubleshoot-tiflash.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [Stale Read](/stale-read.md) +- [Explore HTAP](/explore-htap.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) +- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) +- [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) + +### tidb_executor_concurrency + +Referenced in: +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) + +### tidb_expensive_query_time_threshold + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Identify Slow Queries](/identify-expensive-queries.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Dynamic Configuration](/dynamic-config.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_external_ts + +Referenced in: +- [External Timestamp Read](/tidb-external-ts.md) +- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [Stale Read](/stale-read.md) +- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_force_priority + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Dynamic Configuration](/dynamic-config.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) +- [TiDB 2.1 RC3 Release Notes](/releases/release-2.1-rc.3.md) + +### tidb_gc_concurrency + +Referenced in: +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [GC Configuration](/garbage-collection-configuration.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) + +### tidb_gc_enable + +Referenced in: +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Migrate Data from TiDB to TiDB](/migrate-from-tidb-to-tidb.md) +- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [Migrate Data from TiDB to MySQL](/migrate-from-tidb-to-mysql.md) +- [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Migrate from Self-Hosted TiDB to TiDB Cloud](/tidb-cloud/migrate-from-op-tidb.md) +- [GC Configuration](/garbage-collection-configuration.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) + +### tidb_gc_life_time + +Referenced in: +- [TiKV In-Memory Engine](/tikv-in-memory-engine.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [Dumpling Overview](/dumpling-overview.md) +- [Back up and Restore Incrementally](/br/br-incremental-guide.md) +- [Read Historical Data](/read-historical-data.md) +- [FLASHBACK TABLE | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-table.md) +- [FLASHBACK DATABASE | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-database.md) +- [FLASHBACK CLUSTER | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-cluster.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Create a Changefeed with TiDB Cloud as Downstream](/tidb-cloud/changefeed-sink-to-tidb-cloud.md) +- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) +- [TiCDC FAQs](/ticdc/ticdc-faq.md) +- [Create a Changefeed with MySQL as Downstream](/tidb-cloud/changefeed-sink-to-mysql.md) +- [GC Configuration](/garbage-collection-configuration.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) +- [Use Stale Read](/develop/dev-guide-use-stale-read.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) + +### tidb_gc_run_interval + +Referenced in: +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [GC Configuration](/garbage-collection-configuration.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) + +### tidb_gc_scan_lock_mode + +Referenced in: +- [GC Overview](/garbage-collection-overview.md) +- [Basic Features](/basic-features.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [GC Configuration](/garbage-collection-configuration.md) +- [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) + +### tidb_general_log + +Referenced in: +- [TiDB Data Migration FAQs](/dm/dm-faq.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_hash_exchange_with_new_collation + +Referenced in: +- No direct references found + +### tidb_hash_join_concurrency + +Referenced in: +- [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) +- [Analyze Slow Queries](/analyze-slow-queries.md) +- [Explain Joins](/explain-joins.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_hashagg_final_concurrency + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) + +### tidb_hashagg_partial_concurrency + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) + +### tidb_host_lookup_max_retries + +Referenced in: +- No direct references found + +### tidb_ignore_prepared_cache_close_stmt + +Referenced in: +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [Performance Tuning Best Practices](/performance-tuning-practices.md) +- [Performance Tuning Methods](/performance-tuning-methods.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_ignore_index_hint + +Referenced in: +- No direct references found + +### tidb_index_join_batch_size + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Explain Joins](/explain-joins.md) + +### tidb_index_lookup_concurrency + +Referenced in: +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_index_lookup_join_concurrency + +Referenced in: +- [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Explain Joins](/explain-joins.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_index_lookup_size + +Referenced in: +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_index_serial_scan_concurrency + +Referenced in: +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [Statistics in TiDB](/statistics.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) + +### tidb_init_chunk_size + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Transaction Isolation Levels](/transaction-isolation-levels.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) + +### tidb_isolation_read_engines + +Referenced in: +- [TiUP Bench Reference](/tiup/tiup-bench.md) +- [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) +- [Use FastScan](/tiflash/use-fastscan.md) +- [TiFlash Compatibility](/tiflash/tiflash-compatibility.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Use HTAP Cluster](/tidb-cloud/use-htap-cluster.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) +- [TiDB v5.4 TPC-H Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpch.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_last_txn_info + +Referenced in: +- No direct references found + +### tidb_max_auto_analyze_time + +Referenced in: +- [Statistics in TiDB](/statistics.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_max_chunk_size + +Referenced in: +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Transaction Isolation Levels](/transaction-isolation-levels.md) +- [TiDB 2.0.9 Release Notes](/releases/release-2.0.9.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) +- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) + +### tidb_max_delta_schema_count + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) +- [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) + +### tidb_max_disk_usage + +Referenced in: +- No direct references found + +### tidb_max_disk_quota + +Referenced in: +- No direct references found + +### tidb_max_txn_ttl + +Referenced in: +- No direct references found + +### tidb_mem_oom_action + +Referenced in: +- [Configure Memory Usage](/configure-memory-usage.md) +- [Non-transactional DML](/non-transactional-dml.md) +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) + +### tidb_mem_quota_analyze + +Referenced in: +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [Statistics in TiDB](/statistics.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) +- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) +- [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) + +### tidb_mem_quota_apply_cache + +Referenced in: +- No direct references found + +### tidb_mem_quota_binding_cache + +Referenced in: +- [SQL Plan Management](/sql-plan-management.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_mem_quota_indexlookupjoin + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_mem_quota_nestedloopapply + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_mem_quota_query + +Referenced in: +- [Enable Disk Spill Encryption](/enable-disk-spill-encrypt.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [Contribute to TiDB Documentation](/CONTRIBUTING.md) +- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) +- [Identify Slow Queries](/identify-expensive-queries.md) +- [Explain Joins](/explain-joins.md) +- [Configure Memory Usage](/configure-memory-usage.md) +- [Non-transactional DML](/non-transactional-dml.md) +- [Optimizer Hints](/optimizer-hints.md) +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 4.0.10 Release Notes](/releases/release-4.0.10.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 6.5.11 Release Notes](/releases/release-6.5.11.md) +- [TiDB 7.5.4 Release Notes](/releases/release-7.5.4.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_mem_quota_sort + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_merge_join_concurrency + +Referenced in: +- [System Variables](/system-variables.md) + +### tidb_merge_partition_stats_concurrency + +Referenced in: +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) + +### tidb_metric_query_range_duration + +Referenced in: +- [Monitoring API](/metrics-schema.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) + +### tidb_metric_query_step + +Referenced in: +- [Monitoring API](/metrics-schema.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) + +### tidb_multi_statement_mode + +Referenced in: +- [Error Codes and Troubleshooting](/error-codes.md) +- [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) +- [Integrate TiDB Cloud with n8n](/tidb-cloud/integrate-tidbcloud-with-n8n.md) +- [TiDB 5.0.3 Release Notes](/releases/release-5.0.3.md) +- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md) +- [TiDB 6.5.8 Release Notes](/releases/release-6.5.8.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) + +### tidb_nontransactional_ignore_error + +Referenced in: +- [Non-transactional DML](/non-transactional-dml.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_opt_agg_push_down + +Referenced in: +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) +- [TiDB 6.1.7 Release Notes](/releases/release-6.1.7.md) +- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) +- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) +- [TiDB 4.0 GA Release Notes](/releases/release-4.0-ga.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tidb_opt_broadcast_cartesian_join + +Referenced in: +- No direct references found + +### tidb_opt_concurrency_factor + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_correlation_exp_factor + +Referenced in: +- [Extended Statistics](/extended-statistics.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_opt_correlation_threshold + +Referenced in: +- [Extended Statistics](/extended-statistics.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_desc_factor + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_distinct_agg_push_down + +Referenced in: +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Distinct Optimization](/agg-distinct-optimization.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_opt_enable_correlation_adjustment + +Referenced in: +- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) + +### tidb_opt_insubq_to_join_and_agg + +Referenced in: +- [Subquery Optimization](/subquery-optimization.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Optimizer Hints](/optimizer-hints.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) + +### tidb_opt_join_reorder_threshold + +Referenced in: +- [Join Reorder](/join-reorder.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_opt_limit_push_down_threshold + +Referenced in: +- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) + +### tidb_opt_memory_factor + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_network_factor + +Referenced in: +- [Choose Indexes](/choose-index.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_objective + +Referenced in: +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) + +### tidb_opt_prefix_index_single_scan + +Referenced in: +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_opt_range_max_size + +Referenced in: +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_opt_scan_factor + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_seek_factor + +Referenced in: +- [Choose Indexes](/choose-index.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_opt_skew_distinct_agg + +Referenced in: +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_opt_tiflash_concurrency_factor + +Referenced in: +- No direct references found + +### tidb_opt_write_row_id + +Referenced in: +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_optimizer_selectivity_level + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) + +### tidb_partition_prune_mode + +Referenced in: +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [Partitioned Table](/partitioned-table.md) +- [Use MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiFlash Upgrade Guide](/tiflash-upgrade-guide.md) + +### tidb_pprof_sql_cpu + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) + +### tidb_prepared_plan_cache_memory_guard_ratio + +Referenced in: +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_prepared_plan_cache_size + +Referenced in: +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) + +### tidb_projection_concurrency + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) + +### tidb_query_log_max_len + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) + +### tidb_read_staleness + +Referenced in: +- [Stale Read](/stale-read.md) +- [Read Historical Data Using tidb_read_staleness](/tidb-read-staleness.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [Use Stale Read](/develop/dev-guide-use-stale-read.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_replica_read + +Referenced in: +- [Best Practices for TiDB Read-Only Nodes Deployment](/best-practices/readonly-nodes.md) +- [Three Data Centers Deployment Solution with Local Read](/best-practices/three-dc-local-read.md) +- [Best Practices for TiDB on Public Cloud Platforms](/best-practices-on-public-cloud.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Follower Read](/follower-read.md) +- [Optimizer Hints](/optimizer-hints.md) +- [Use Follower Read to Ensure Strongly Consistent Reads](/develop/dev-guide-use-follower-read.md) +- [TiDB 3.1.0-beta.2 Release Notes](/releases/release-3.1.0-beta.2.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_retry_limit + +Referenced in: +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) +- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) +- [TiDB Transaction Overview](/transaction-overview.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) +- [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) + +### tidb_row_format_version + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_scatter_region + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_schema_cache_size + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_session_alias + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_skip_ascii_check + +Referenced in: +- [Character Set and Collation](/character-set-and-collation.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_skip_isolation_level_check + +Referenced in: +- [Transaction Isolation Levels](/transaction-isolation-levels.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_skip_utf8_check + +Referenced in: +- [Character Set and Collation](/character-set-and-collation.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_slow_log_threshold + +Referenced in: +- [Slow Query Page](/dashboard/dashboard-slow-query.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_slow_query_file + +Referenced in: +- [Identify Slow Queries](/identify-slow-queries.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_snapshot + +Referenced in: +- [Read Historical Data](/read-historical-data.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Stale Read](/stale-read.md) +- [Use Stale Read](/develop/dev-guide-use-stale-read.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_stmt_summary_history_size + +Referenced in: +- [Statement Summary Tables](/statement-summary-tables.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) + +### tidb_stmt_summary_internal_query + +Referenced in: +- [Statement Summary Tables](/statement-summary-tables.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) + +### tidb_stmt_summary_max_sql_length + +Referenced in: +- [Statement Summary Tables](/statement-summary-tables.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) + +### tidb_stmt_summary_max_stmt_count + +Referenced in: +- [Statement Summary Tables](/statement-summary-tables.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) + +### tidb_stmt_summary_refresh_interval + +Referenced in: +- [Statement Summary Tables](/statement-summary-tables.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) + +### tidb_store_limit + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_tbl_cache_size + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_tmp_table_max_size + +Referenced in: +- [Temporary Tables](/temporary-tables.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_top_sql_max_meta_count + +Referenced in: +- [Top SQL](/dashboard/top-sql.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_top_sql_max_time_series_count + +Referenced in: +- [Top SQL](/dashboard/top-sql.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) + +### tidb_txn_mode + +Referenced in: +- [TiDB Transaction Overview](/transaction-overview.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) + +### tidb_use_plan_baselines + +Referenced in: +- [SQL Plan Management](/sql-plan-management.md) +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) + +### tidb_wait_split_region_finish + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_wait_split_region_timeout + +Referenced in: +- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_window_concurrency + +Referenced in: +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) + +### tidb_window_pipelined_threshold + +Referenced in: +- No direct references found + +### tidb_window_pipelined_threshold_size + +Referenced in: +- No direct references found + +### tidb_window_size + +Referenced in: +- No direct references found + +### tiflash_fastscan + +Referenced in: +- [Use FastScan to Accelerate TiFlash Queries](/tiflash/use-fastscan.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tiflash_fine_grained_shuffle_batch_size + +Referenced in: +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tiflash_fine_grained_shuffle_stream_count + +Referenced in: +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tiflash_mem_quota_query_per_node + +Referenced in: +- [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) + +### tiflash_query_spill_ratio + +Referenced in: +- [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) + +### tiflash_replica_read + +Referenced in: +- [Basic Features](/basic-features.md) +- [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tiflash_hashagg_preaggregation_mode + +Referenced in: +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) + +### tikv_client_read_timeout + +Referenced in: +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) + +### time_zone + +Referenced in: +- [Date and Time Types](/data-type-date-and-time.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [Configure Time Zone](/configure-time-zone.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) + +### timestamp + +Referenced in: +- [Log Redaction](/log-redaction.md) +- [Time Service Overview](/tso.md) +- [Analyze Slow Queries](/analyze-slow-queries.md) +- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) +- [Time To Live (TTL)](/time-to-live.md) +- [Dumpling Overview](/dumpling-overview.md) +- [Partitioned Table](/partitioned-table.md) +- [Back up and Restore a Snapshot of TiDB Cluster Data](/br/br-snapshot-manual.md) +- [Point-in-Time Recovery](/br/br-pitr-manual.md) +- [Back up and Restore Incremental Data](/br/br-incremental-guide.md) + +### transaction_isolation + +Referenced in: +- [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) +- [Third-Party Tool Compatibility](/develop/dev-guide-third-party-tools-compatibility.md) +- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) + +### tx_isolation + +Referenced in: +- [Performance Tuning Package](/performance-tuning-practices.md) + +### txn_scope + +Referenced in: +- [Resource Control](/tidb-resource-control.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) + +### validate_password.check_user_name + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### validate_password.dictionary + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### validate_password.enable + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### validate_password.length + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) + +### validate_password.mixed_case_count + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### validate_password.number_count + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### validate_password.policy + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### validate_password.special_char_count + +Referenced in: +- [TiDB Password Management](/password-management.md) +- [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### version + +Referenced in: +- [TiDB Tools User Guide](/ecosystem-tool-user-guide.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [Upgrade Monitoring Services](/upgrade-monitoring-services.md) +- [Foreign Key](/foreign-key.md) + +### version_compile_machine + +Referenced in: +- No direct references found + +### version_compile_os + +Referenced in: +- No direct references found + +### wait_timeout + +Referenced in: +- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md): Discusses setting wait_timeout for Java applications +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md): Mentions wait_timeout in context of lock wait timeouts +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md): Suggests adjusting wait_timeout for connection pools +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md): Lists wait_timeout as a supported timeout +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md): Details about wait_timeout configuration +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md): Notes read-only status in TiDB Cloud +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md): Explains wait_timeout usage +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md): Added wait_timeout system variable +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md): Added support for wait_timeout +- [TiProxy Overview](/tiproxy/tiproxy-overview.md): Describes connection handling with wait_timeout + +### warning_count + +Referenced in: +- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md): Added support for warning_count session variable + +### windowing_use_high_precision + +Referenced in: +- [Window Functions](/functions-and-operators/window-functions.md): Describes using windowing_use_high_precision to control precision mode + From bbc4bb7474694e5d4c15bff2f632724f5d19b12d Mon Sep 17 00:00:00 2001 From: Lilian Lee Date: Fri, 3 Jan 2025 15:58:41 +0800 Subject: [PATCH 02/24] Update wording --- TOC.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/TOC.md b/TOC.md index f9fcbaa8fabf4..12947f9c4d60c 100644 --- a/TOC.md +++ b/TOC.md @@ -685,7 +685,7 @@ - [Introduction](/tidb-distributed-execution-framework.md) - [TiDB Global Sort](/tidb-global-sort.md) - [System Variables](/system-variables.md) - - [System Variables References](/system-variables-references.md) + - [System Variable Reference](/system-variable-reference.md) - [Server Status Variables](/status-variables.md) - Configuration File Parameters - [tidb-server](/tidb-configuration-file.md) From 4c44005a87f8c97c24a4250611a7f4c27efc9e6f Mon Sep 17 00:00:00 2001 From: lilin90 Date: Fri, 3 Jan 2025 20:26:48 +0800 Subject: [PATCH 03/24] Update file name and format --- ...erences.md => system-variable-reference.md | 320 +++++++++++++++++- 1 file changed, 317 insertions(+), 3 deletions(-) rename system-variables-references.md => system-variable-reference.md (99%) diff --git a/system-variables-references.md b/system-variable-reference.md similarity index 99% rename from system-variables-references.md rename to system-variable-reference.md index 703917f5deab1..d9e91af5d7cbd 100644 --- a/system-variables-references.md +++ b/system-variable-reference.md @@ -1,6 +1,6 @@ --- -title: System Variables References -summary: A list of all TiDBsystem variables and their references in the documentation. +title: System Variable Reference +summary: A list of all TiDB system variables and their references in the documentation. --- # System Variables References @@ -12,6 +12,7 @@ This document lists all TiDB system variables and the files that reference them ### allow_auto_random_explicit_insert Referenced in: + - [AUTO_RANDOM](/auto-random.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) @@ -21,106 +22,127 @@ Referenced in: ### authentication_ldap_sasl_auth_method_name Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_bind_base_dn Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_bind_root_dn Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_bind_root_pwd Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_ca_path Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_init_pool_size Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_max_pool_size Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_server_host Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_server_port Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_tls Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_auth_method_name Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_bind_base_dn Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_bind_root_dn Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_bind_root_pwd Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_ca_path Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_init_pool_size Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_max_pool_size Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_server_host Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_server_port Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_tls Referenced in: + - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### auto_increment_increment Referenced in: + - [AUTO_RANDOM](/auto-random.md) - [Auto-Increment](/auto-increment.md) - [Error Codes](/error-codes.md) @@ -132,6 +154,7 @@ Referenced in: ### auto_increment_offset Referenced in: + - [AUTO_RANDOM](/auto-random.md) - [Auto-Increment](/auto-increment.md) - [Error Codes](/error-codes.md) @@ -143,6 +166,7 @@ Referenced in: ### autocommit Referenced in: + - [Transaction Overview](/transaction-overview.md) - [Pessimistic Transaction](/pessimistic-transaction.md) - [Temporary Tables](/temporary-tables.md) @@ -155,11 +179,13 @@ Referenced in: ### block_encryption_mode Referenced in: + - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) ### character_set_client Referenced in: + - [GBK Character Set Support](/character-set-gbk.md) - [Dumpling Overview](/dumpling-overview.md) - [Information Schema](/information-schema/information-schema-views.md) @@ -171,6 +197,7 @@ Referenced in: ### character_set_connection Referenced in: + - [GBK Character Set Support](/character-set-gbk.md) - [Dumpling Overview](/dumpling-overview.md) - [Character Sets and Collations](/character-set-and-collation.md) @@ -179,12 +206,14 @@ Referenced in: ### character_set_database Referenced in: + - [Character Sets and Collations](/character-set-and-collation.md) - [SET NAMES](/sql-statements/sql-statement-set-names.md) ### character_set_results Referenced in: + - [Character Sets and Collations](/character-set-and-collation.md) - [SET NAMES](/sql-statements/sql-statement-set-names.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -193,6 +222,7 @@ Referenced in: ### character_set_server Referenced in: + - [Character Sets and Collations](/character-set-and-collation.md) - [SET NAMES](/sql-statements/sql-statement-set-names.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -200,6 +230,7 @@ Referenced in: ### collation_connection Referenced in: + - [String Functions](/functions-and-operators/string-functions.md) - [Information Schema](/information-schema/information-schema-views.md) - [Character Sets and Collations](/character-set-and-collation.md) @@ -209,11 +240,13 @@ Referenced in: ### collation_database Referenced in: + - [Character Sets and Collations](/character-set-and-collation.md) ### collation_server Referenced in: + - [Character Sets and Collations](/character-set-and-collation.md) - [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -222,22 +255,26 @@ Referenced in: ### cte_max_recursion_depth Referenced in: + - [High Concurrency Best Practices](/best-practices/high-concurrency-best-practices.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) ### datadir Referenced in: + - [Limited SQL Features](/tidb-cloud/limited-sql-features.md) ### ddl_slow_threshold Referenced in: + - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) ### default_authentication_plugin Referenced in: + - [TiDB Features](/basic-features.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -247,6 +284,7 @@ Referenced in: ### default_collation_for_utf8mb4 Referenced in: + - [Character Sets and Collations](/character-set-and-collation.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) @@ -254,12 +292,14 @@ Referenced in: ### default_password_lifetime Referenced in: + - [Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### default_week_format Referenced in: + - [Date and Time Functions](/functions-and-operators/date-and-time-functions.md) - [TiDB 4.0.11 Release Notes](/releases/release-4.0.11.md) - [TiDB 2.1.7 Release Notes](/releases/release-2.1.7.md) @@ -267,50 +307,59 @@ Referenced in: ### disconnect_on_expired_password Referenced in: + - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### div_precision_increment Referenced in: + - [Numeric Functions and Operators](/functions-and-operators/numeric-functions-and-operators.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### error_count Referenced in: + - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md): Added support for this variable. ### foreign_key_checks Referenced in: + - [Foreign Key](/foreign-key.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### group_concat_max_len Referenced in: + - [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) ### have_openssl Referenced in: + - [Certificate-based Authentication](/certificate-authentication.md) ### have_ssl Referenced in: + - [Certificate-based Authentication](/certificate-authentication.md) ### hostname Referenced in: + - [The mysql.user Table](/mysql-schema/mysql-schema-user.md) - [Best Practices for HAProxy](/best-practices/haproxy-best-practices.md) ### identity Referenced in: + - [Configure SSO for TiDB Dashboard](/dashboard/dashboard-session-sso.md) - [Secure TiDB Dashboard](/dashboard/dashboard-ops-security.md) - [Enable TLS Between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) @@ -319,6 +368,7 @@ Referenced in: ### init_connect Referenced in: + - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md): Improved MySQL compatibility with parsing check - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md): Added as a new feature - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md): Added support for this system variable @@ -328,6 +378,7 @@ Referenced in: ### innodb_lock_wait_timeout Referenced in: + - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [Pessimistic Transaction Model](/pessimistic-transaction.md) - [TiKV Configuration File](/tikv-configuration-file.md) @@ -336,6 +387,7 @@ Referenced in: ### interactive_timeout Referenced in: + - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [TiDB FAQs](/faq/manage-cluster-faq.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -345,6 +397,7 @@ Referenced in: ### last_insert_id Referenced in: + - [AUTO_RANDOM](/auto-random.md) - [Information Functions](/functions-and-operators/information-functions.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) @@ -357,12 +410,14 @@ Referenced in: ### last_plan_from_binding Referenced in: + - [SQL Plan Management](/sql-plan-management.md) - [TiDB 4.0.12 Release Notes](/releases/release-4.0.12.md) ### last_plan_from_cache Referenced in: + - [SQL Prepared Plan Cache](/sql-prepared-plan-cache.md) - [SQL Non-prepared Plan Cache](/sql-non-prepared-plan-cache.md) - [Choose Indexes](/choose-index.md) @@ -371,16 +426,19 @@ Referenced in: ### last_sql_use_alloc Referenced in: + - [What's New in TiDB 6.4.0](/releases/release-6.4.0.md): Added support for this variable. ### license Referenced in: + - [TiDB Data Migration Overview](/dm/dm-overview.md) ### max_allowed_packet Referenced in: + - [TiDB Data Migration FAQs](/dm/dm-faq.md) - [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) - [DM Task Configuration File](/dm/task-configuration-file-full.md) @@ -397,6 +455,7 @@ Referenced in: ### max_connections Referenced in: + - [TiDB FAQs](/faq/manage-cluster-faq.md) - [Dynamic Configuration](/dynamic-config.md) - [Integrate ProxySQL with TiDB](/develop/dev-guide-proxysql-integration.md) @@ -406,6 +465,7 @@ Referenced in: ### max_execution_time Referenced in: + - [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) - [SQL Plan Management](/sql-plan-management.md) - [SQL Prepared Plan Cache](/sql-prepared-plan-cache.md) @@ -421,6 +481,7 @@ Referenced in: ### max_prepared_stmt_count Referenced in: + - [PREPARE | TiDB SQL Statement Reference](/sql-statements/sql-statement-prepare.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) @@ -428,18 +489,21 @@ Referenced in: ### mpp_exchange_compression_mode Referenced in: + - [MPP Query Execution](/explain-mpp.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### mpp_version Referenced in: + - [MPP Query Execution](/explain-mpp.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### password_history Referenced in: + - [Password Management](/password-management.md) - [The MYSQL Schema](/mysql-schema/mysql-schema.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) @@ -448,12 +512,14 @@ Referenced in: ### password_reuse_interval Referenced in: + - [Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### pd_enable_follower_handle_region Referenced in: + - [Tune Region Performance](/tune-region-performance.md) - [TiDB Features](/basic-features.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -462,17 +528,20 @@ Referenced in: ### plugin_dir Referenced in: + - [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) ### plugin_load Referenced in: + - [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) ### port Referenced in: + - [Migrate Data from SQL Files to TiDB](/migrate-from-sql-files-to-tidb.md) - [TiFlash Deployment Topology](/tiflash-deployment-topology.md) - [TSO Configuration File](/tso-configuration-file.md) @@ -480,16 +549,19 @@ Referenced in: ### rand_seed1 Referenced in: + - No direct references found ### rand_seed2 Referenced in: + - No direct references found ### require_secure_transport Referenced in: + - [Enable TLS Between Clients and Servers](/enable-tls-between-clients-and-servers.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) @@ -503,17 +575,20 @@ Referenced in: ### skip_name_resolve Referenced in: + - No direct references found ### socket Referenced in: + - [HAProxy Best Practices](/best-practices/haproxy-best-practices.md) - [SHOW CONFIG](/sql-statements/sql-statement-show-config.md) ### sql_mode Referenced in: + - [Date and Time Types](/data-type-date-and-time.md) - [Avoid Unstable Result Set](/develop/dev-guide-unstable-result-set.md) - [DM Open API](/dm/dm-open-api.md) @@ -537,18 +612,21 @@ Referenced in: ### sql_require_primary_key Referenced in: + - [DM Task Configuration File](/dm/task-configuration-file-full.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md): Added support for this variable. ### sql_select_limit Referenced in: + - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md): Added support for this variable as session and global variable. ### ssl_ca Referenced in: + - [Certificate-Based Authentication](/certificate-authentication.md) - [Build a Simple CRUD App with Node.js and MySQL (mysql2)](/develop/dev-guide-sample-application-nodejs-mysql2.md) - [Build a Simple CRUD App with Node.js and MySQL (mysql)](/develop/dev-guide-sample-application-nodejs-mysqljs.md) @@ -569,22 +647,26 @@ Referenced in: ### ssl_cert Referenced in: + - [Certificate-Based Authentication](/certificate-authentication.md) ### ssl_key Referenced in: + - [Certificate-Based Authentication](/certificate-authentication.md) ### system_time_zone Referenced in: + - [Configure Time Zone](/configure-time-zone.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) ### time_zone Referenced in: + - [Configure Time Zone](/configure-time-zone.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [Date and Time Types](/data-type-date-and-time.md) @@ -595,6 +677,7 @@ Referenced in: ### tidb_adaptive_closest_read_threshold Referenced in: + - [Follower Read](/follower-read.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -602,11 +685,13 @@ Referenced in: ### tidb_allow_tiflash_cop Referenced in: + - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tidb_allow_batch_cop Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) @@ -615,11 +700,13 @@ Referenced in: ### tidb_allow_fallback_to_tikv Referenced in: + - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_allow_function_for_expression_index Referenced in: + - [Basic Features](/basic-features.md) - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -627,6 +714,7 @@ Referenced in: ### tidb_allow_mpp Referenced in: + - [MPP Query Execution](/explain-mpp.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) @@ -638,6 +726,7 @@ Referenced in: ### tidb_allow_remove_auto_inc Referenced in: + - [Auto-increment](/auto-increment.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [MySQL Compatibility](/mysql-compatibility.md) @@ -648,6 +737,7 @@ Referenced in: ### tidb_analyze_column_options Referenced in: + - [TiDB Performance Tuning Configuration](/tidb-performance-tuning-config.md) - [TiUP Bench User Guide](/tiup/tiup-bench.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -656,12 +746,14 @@ Referenced in: ### tidb_analyze_distsql_scan_concurrency Referenced in: + - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) ### tidb_analyze_partition_concurrency Referenced in: + - [Statistics](/statistics.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) @@ -672,6 +764,7 @@ Referenced in: ### tidb_analyze_version Referenced in: + - [Troubleshoot TiDB Out of Memory (OOM) Errors](/troubleshoot-tidb-oom.md) - [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) - [Statistics](/statistics.md) @@ -688,6 +781,7 @@ Referenced in: ### tidb_analyze_skip_column_types Referenced in: + - [Statistics](/statistics.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -695,6 +789,7 @@ Referenced in: ### tidb_auto_analyze_end_time Referenced in: + - [Troubleshoot TiDB CPU Performance Issues](/troubleshoot-cpu-issues.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) @@ -704,6 +799,7 @@ Referenced in: ### tidb_auto_analyze_partition_batch_size Referenced in: + - [Statistics](/statistics.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -711,12 +807,14 @@ Referenced in: ### tidb_auto_analyze_ratio Referenced in: + - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_auto_analyze_start_time Referenced in: + - [Statistics](/statistics.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot TiDB CPU Performance Issues](/troubleshoot-cpu-issues.md) @@ -726,44 +824,52 @@ Referenced in: ### tidb_auto_build_stats_concurrency Referenced in: + - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_backoff_lock_fast Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) ### tidb_backoff_weight Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) ### tidb_batch_commit Referenced in: + - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_batch_delete Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_batch_insert Referenced in: + - [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) ### tidb_batch_pending_tiflash_count Referenced in: + - No direct references found ### tidb_broadcast_join_threshold_count Referenced in: + - [MPP Execution](/explain-mpp.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) @@ -772,6 +878,7 @@ Referenced in: ### tidb_broadcast_join_threshold_size Referenced in: + - [MPP Execution](/explain-mpp.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) @@ -780,6 +887,7 @@ Referenced in: ### tidb_build_stats_concurrency Referenced in: + - [Statistics](/statistics.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Cloud v8.1 Performance Benchmarking with TPC-C](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) @@ -792,12 +900,14 @@ Referenced in: ### tidb_build_sampling_stats_concurrency Referenced in: + - [Statistics](/statistics.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) ### tidb_capture_plan_baselines Referenced in: + - [SQL Plan Management](/sql-plan-management.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -806,12 +916,14 @@ Referenced in: ### tidb_cdc_write_source Referenced in: + - [Limited SQL Features](/tidb-cloud/limited-sql-features.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_check_mb4_value_in_utf8 Referenced in: + - [Character Set and Collation](/character-set-and-collation.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Upgrade FAQs](/faq/upgrade-faq.md) @@ -821,12 +933,14 @@ Referenced in: ### tidb_checksum_table_concurrency Referenced in: + - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_committer_concurrency Referenced in: + - [Grafana TiDB Dashboard](/grafana-tidb-dashboard.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) @@ -834,6 +948,7 @@ Referenced in: ### tidb_config Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features](/tidb-cloud/limited-sql-features.md) - [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) @@ -842,6 +957,7 @@ Referenced in: ### tidb_constraint_check_in_place Referenced in: + - [Constraints](/constraints.md) - [Task Configuration File](/dm/task-configuration-file-full.md) - [Error Codes and Troubleshooting](/error-codes.md) @@ -854,6 +970,7 @@ Referenced in: ### tidb_constraint_check_in_place_pessimistic Referenced in: + - [Constraints](/constraints.md) - [Dynamic Configuration](/dynamic-config.md) - [Error Codes and Troubleshooting](/error-codes.md) @@ -867,6 +984,7 @@ Referenced in: ### tidb_cost_model_version Referenced in: + - [TiDB Cost Model](/cost-model.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -874,6 +992,7 @@ Referenced in: ### tidb_current_ts Referenced in: + - [Timestamp Oracle in TiDB](/tso.md) - [External Timestamp in TiDB](/tidb-external-ts.md) - [Disaster Recovery Secondary Cluster](/dr-secondary-cluster.md) @@ -887,6 +1006,7 @@ Referenced in: ### tidb_ddl_disk_quota Referenced in: + - [Limited SQL Features](/tidb-cloud/limited-sql-features.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -894,6 +1014,7 @@ Referenced in: ### tidb_ddl_enable_fast_reorg Referenced in: + - [Basic Features](/basic-features.md) - [Hardware and Software Requirements](/hardware-and-software-requirements.md) - [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) @@ -915,6 +1036,7 @@ Referenced in: ### tidb_ddl_error_count_limit Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features](/tidb-cloud/limited-sql-features.md) - [SQL FAQs](/faq/sql-faq.md) @@ -923,6 +1045,7 @@ Referenced in: ### tidb_ddl_flashback_concurrency Referenced in: + - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -930,6 +1053,7 @@ Referenced in: ### tidb_ddl_reorg_batch_size Referenced in: + - [TiDB DDL](/ddl-introduction.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) @@ -942,6 +1066,7 @@ Referenced in: ### tidb_ddl_reorg_priority Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) - [Limited SQL Features](/tidb-cloud/limited-sql-features.md) @@ -951,6 +1076,7 @@ Referenced in: ### tidb_ddl_reorg_worker_cnt Referenced in: + - [TiDB DDL](/ddl-introduction.md) - [Troubleshoot CPU Issues](/troubleshoot-cpu-issues.md) - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) @@ -972,12 +1098,14 @@ Referenced in: ### tidb_ddl_reorg_max_write_speed Referenced in: + - [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) ### tidb_enable_dist_task Referenced in: + - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [Upgrade TiDB Using TiUP](/smooth-upgrade-tidb.md) @@ -992,6 +1120,7 @@ Referenced in: ### tidb_cloud_storage_uri Referenced in: + - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) @@ -1000,11 +1129,13 @@ Referenced in: ### tidb_default_string_match_selectivity Referenced in: + - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_disable_txn_auto_retry Referenced in: + - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [TiDB Transaction Overview](/transaction-overview.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) @@ -1022,6 +1153,7 @@ Referenced in: ### tidb_distsql_scan_concurrency Referenced in: + - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [Dumpling Overview](/dumpling-overview.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) @@ -1040,6 +1172,7 @@ Referenced in: ### tidb_dml_batch_size Referenced in: + - [LOAD DATA | TiDB SQL Statement Reference](/sql-statements/sql-statement-load-data.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -1050,6 +1183,7 @@ Referenced in: ### tidb_dml_type Referenced in: + - [Identify Slow Queries](/identify-expensive-queries.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [IMPORT INTO vs TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) @@ -1064,6 +1198,7 @@ Referenced in: ### tidb_enable_1pc Referenced in: + - [Transaction Overview](/transaction-overview.md) - [Basic Features](/basic-features.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) @@ -1089,6 +1224,7 @@ Referenced in: ### tidb_enable_async_commit Referenced in: + - [Transaction Overview](/transaction-overview.md) - [Basic Features](/basic-features.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) @@ -1115,11 +1251,13 @@ Referenced in: ### tidb_enable_analyze_snapshot Referenced in: + - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_auto_analyze Referenced in: + - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [SQL Plan Replayer User Guide](/sql-plan-replayer.md) - [Statistics in TiDB](/statistics.md) @@ -1130,6 +1268,7 @@ Referenced in: ### tidb_enable_auto_analyze_priority_queue Referenced in: + - [Statistics in TiDB](/statistics.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1141,17 +1280,20 @@ Referenced in: ### tidb_enable_auto_increment_in_generated Referenced in: + - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_enable_batch_dml Referenced in: + - [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) ### tidb_enable_cascades_planner Referenced in: + - [Basic Features](/basic-features.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -1159,6 +1301,7 @@ Referenced in: ### tidb_enable_check_constraint Referenced in: + - [INFORMATION_SCHEMA TIDB_CHECK_CONSTRAINTS Table](/information-schema/information-schema-tidb-check-constraints.md) - [INFORMATION_SCHEMA CHECK_CONSTRAINTS Table](/information-schema/information-schema-check-constraints.md) - [Constraints](/constraints.md) @@ -1167,11 +1310,13 @@ Referenced in: ### tidb_enable_chunk_rpc Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_enable_clustered_index Referenced in: + - [Clustered Indexes](/clustered-indexes.md) - [Backup & Restore Overview](/br/backup-and-restore-overview.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) @@ -1198,6 +1343,7 @@ Referenced in: ### tidb_enable_ddl Referenced in: + - [Dynamic Configuration](/dynamic-config.md) - [Topology Reference](/tiup/tiup-cluster-topology-reference.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -1206,6 +1352,7 @@ Referenced in: ### tidb_enable_collect_execution_info Referenced in: + - [Dynamic Configuration](/dynamic-config.md) - [INFORMATION_SCHEMA TIDB_INDEX_USAGE Table](/information-schema/information-schema-tidb-index-usage.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) @@ -1220,6 +1367,7 @@ Referenced in: ### tidb_enable_column_tracking Referenced in: + - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -1227,6 +1375,7 @@ Referenced in: ### tidb_enable_enhanced_security Referenced in: + - [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) - [Basic Features](/basic-features.md) - [BACKUP | TiDB SQL Statement Reference](/sql-statements/sql-statement-backup.md) @@ -1238,17 +1387,20 @@ Referenced in: ### tidb_enable_exchange_partition Referenced in: + - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_enable_extended_stats Referenced in: + - [Extended Statistics](/extended-statistics.md) ### tidb_enable_external_ts_read Referenced in: + - [External Timestamp Read](/tidb-external-ts.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) - [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) @@ -1257,6 +1409,7 @@ Referenced in: ### tidb_enable_fast_analyze Referenced in: + - [Basic Features](/basic-features.md) - [Extended Statistics](/extended-statistics.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) @@ -1266,23 +1419,27 @@ Referenced in: ### tidb_enable_fast_table_check Referenced in: + - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) ### tidb_enable_foreign_key Referenced in: + - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_enable_gc_aware_memory_track Referenced in: + - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_enable_global_index Referenced in: + - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1290,6 +1447,7 @@ Referenced in: ### tidb_enable_lazy_cursor_fetch Referenced in: + - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Parameters](/develop/dev-guide-connection-parameters.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1297,6 +1455,7 @@ Referenced in: ### tidb_enable_non_prepared_plan_cache Referenced in: + - [Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -1308,12 +1467,14 @@ Referenced in: ### tidb_enable_non_prepared_plan_cache_for_dml Referenced in: + - [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_enable_noop_functions Referenced in: + - [Information Functions](/functions-and-operators/information-functions.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SELECT](/sql-statements/sql-statement-select.md) @@ -1325,17 +1486,20 @@ Referenced in: ### tidb_enable_noop_variables Referenced in: + - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_null_aware_anti_join Referenced in: + - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_outer_join_reorder Referenced in: + - [Join Reorder](/join-reorder.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -1345,6 +1509,7 @@ Referenced in: ### tidb_enable_parallel_apply Referenced in: + - [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) - [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -1353,23 +1518,27 @@ Referenced in: ### tidb_enable_pipelined_window_function Referenced in: + - [Window Functions](/functions-and-operators/window-functions.md) ### tidb_enable_plan_replayer_capture Referenced in: + - [SQL Plan Management](/sql-plan-replayer.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_enable_plan_replayer_continuous_capture Referenced in: + - [SQL Plan Management](/sql-plan-replayer.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_prepared_plan_cache Referenced in: + - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [TiDB Dashboard FAQ](/dashboard/dashboard-faq.md) - [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) @@ -1382,11 +1551,13 @@ Referenced in: ### tidb_enable_prepared_plan_cache_memory_monitor Referenced in: + - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_pseudo_for_outdated_stats Referenced in: + - [SQL FAQs](/faq/sql-faq.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1394,6 +1565,7 @@ Referenced in: ### tidb_enable_rate_limit_action Referenced in: + - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [Configure Memory Usage](/configure-memory-usage.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1401,12 +1573,14 @@ Referenced in: ### tidb_enable_reuse_chunk Referenced in: + - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_row_level_checksum Referenced in: + - [TiDB Functions](/functions-and-operators/tidb-functions.md) - [Data Integrity Check](/ticdc/ticdc-integrity-check.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -1416,6 +1590,7 @@ Referenced in: ### tidb_enable_slow_log Referenced in: + - [TiDB Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) @@ -1426,6 +1601,7 @@ Referenced in: ### tidb_enable_stmt_summary Referenced in: + - [SQL Plan Management](/sql-plan-management.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) @@ -1435,11 +1611,13 @@ Referenced in: ### tidb_enable_strict_double_type_check Referenced in: + - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_table_partition Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) @@ -1448,6 +1626,7 @@ Referenced in: ### tidb_enable_telemetry Referenced in: + - [TiDB 6.1.5 Release Notes](/releases/release-6.1.5.md) - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -1456,6 +1635,7 @@ Referenced in: ### tidb_enable_tiflash_read_for_write_stmt Referenced in: + - [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -1464,6 +1644,7 @@ Referenced in: ### tidb_enable_top_sql Referenced in: + - [Top SQL](/dashboard/top-sql.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -1471,6 +1652,7 @@ Referenced in: ### tidb_enable_tso_follower_proxy Referenced in: + - [PD Microservices](/pd-microservices.md) - [Basic Features](/basic-features.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -1480,6 +1662,7 @@ Referenced in: ### tidb_enable_vectorized_expression Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.0.6 Release Notes](/releases/release-5.0.6.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) @@ -1490,6 +1673,7 @@ Referenced in: ### tidb_enforce_mpp Referenced in: + - [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [Troubleshoot TiFlash](/tiflash/troubleshoot-tiflash.md) @@ -1506,6 +1690,7 @@ Referenced in: ### tidb_executor_concurrency Referenced in: + - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) @@ -1514,6 +1699,7 @@ Referenced in: ### tidb_expensive_query_time_threshold Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Identify Slow Queries](/identify-expensive-queries.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -1523,6 +1709,7 @@ Referenced in: ### tidb_external_ts Referenced in: + - [External Timestamp Read](/tidb-external-ts.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) - [Stale Read](/stale-read.md) @@ -1532,6 +1719,7 @@ Referenced in: ### tidb_force_priority Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) - [Dynamic Configuration](/dynamic-config.md) @@ -1543,6 +1731,7 @@ Referenced in: ### tidb_gc_concurrency Referenced in: + - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [GC Configuration](/garbage-collection-configuration.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1551,6 +1740,7 @@ Referenced in: ### tidb_gc_enable Referenced in: + - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Migrate Data from TiDB to TiDB](/migrate-from-tidb-to-tidb.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) @@ -1564,6 +1754,7 @@ Referenced in: ### tidb_gc_life_time Referenced in: + - [TiKV In-Memory Engine](/tikv-in-memory-engine.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Error Codes and Troubleshooting](/error-codes.md) @@ -1587,6 +1778,7 @@ Referenced in: ### tidb_gc_run_interval Referenced in: + - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [GC Configuration](/garbage-collection-configuration.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1594,6 +1786,7 @@ Referenced in: ### tidb_gc_scan_lock_mode Referenced in: + - [GC Overview](/garbage-collection-overview.md) - [Basic Features](/basic-features.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -1604,6 +1797,7 @@ Referenced in: ### tidb_general_log Referenced in: + - [TiDB Data Migration FAQs](/dm/dm-faq.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) @@ -1614,11 +1808,13 @@ Referenced in: ### tidb_hash_exchange_with_new_collation Referenced in: + - No direct references found ### tidb_hash_join_concurrency Referenced in: + - [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [Analyze Slow Queries](/analyze-slow-queries.md) - [Explain Joins](/explain-joins.md) @@ -1628,6 +1824,7 @@ Referenced in: ### tidb_hashagg_final_concurrency Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) @@ -1639,6 +1836,7 @@ Referenced in: ### tidb_hashagg_partial_concurrency Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) @@ -1650,11 +1848,13 @@ Referenced in: ### tidb_host_lookup_max_retries Referenced in: + - No direct references found ### tidb_ignore_prepared_cache_close_stmt Referenced in: + - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [Performance Tuning Best Practices](/performance-tuning-practices.md) @@ -1664,17 +1864,20 @@ Referenced in: ### tidb_ignore_index_hint Referenced in: + - No direct references found ### tidb_index_join_batch_size Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Explain Joins](/explain-joins.md) ### tidb_index_lookup_concurrency Referenced in: + - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -1682,6 +1885,7 @@ Referenced in: ### tidb_index_lookup_join_concurrency Referenced in: + - [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Explain Joins](/explain-joins.md) @@ -1690,12 +1894,14 @@ Referenced in: ### tidb_index_lookup_size Referenced in: + - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_index_serial_scan_concurrency Referenced in: + - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [Statistics in TiDB](/statistics.md) @@ -1708,6 +1914,7 @@ Referenced in: ### tidb_init_chunk_size Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Transaction Isolation Levels](/transaction-isolation-levels.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -1715,6 +1922,7 @@ Referenced in: ### tidb_isolation_read_engines Referenced in: + - [TiUP Bench Reference](/tiup/tiup-bench.md) - [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) - [Use FastScan](/tiflash/use-fastscan.md) @@ -1729,17 +1937,20 @@ Referenced in: ### tidb_last_txn_info Referenced in: + - No direct references found ### tidb_max_auto_analyze_time Referenced in: + - [Statistics in TiDB](/statistics.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_max_chunk_size Referenced in: + - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Transaction Isolation Levels](/transaction-isolation-levels.md) @@ -1752,6 +1963,7 @@ Referenced in: ### tidb_max_delta_schema_count Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) @@ -1760,21 +1972,25 @@ Referenced in: ### tidb_max_disk_usage Referenced in: + - No direct references found ### tidb_max_disk_quota Referenced in: + - No direct references found ### tidb_max_txn_ttl Referenced in: + - No direct references found ### tidb_mem_oom_action Referenced in: + - [Configure Memory Usage](/configure-memory-usage.md) - [Non-transactional DML](/non-transactional-dml.md) - [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) @@ -1785,6 +2001,7 @@ Referenced in: ### tidb_mem_quota_analyze Referenced in: + - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [Statistics in TiDB](/statistics.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) @@ -1796,28 +2013,33 @@ Referenced in: ### tidb_mem_quota_apply_cache Referenced in: + - No direct references found ### tidb_mem_quota_binding_cache Referenced in: + - [SQL Plan Management](/sql-plan-management.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_mem_quota_indexlookupjoin Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_mem_quota_nestedloopapply Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_mem_quota_query Referenced in: + - [Enable Disk Spill Encryption](/enable-disk-spill-encrypt.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) @@ -1852,17 +2074,20 @@ Referenced in: ### tidb_mem_quota_sort Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_merge_join_concurrency Referenced in: + - [System Variables](/system-variables.md) ### tidb_merge_partition_stats_concurrency Referenced in: + - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) @@ -1870,6 +2095,7 @@ Referenced in: ### tidb_metric_query_range_duration Referenced in: + - [Monitoring API](/metrics-schema.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -1877,6 +2103,7 @@ Referenced in: ### tidb_metric_query_step Referenced in: + - [Monitoring API](/metrics-schema.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -1884,6 +2111,7 @@ Referenced in: ### tidb_multi_statement_mode Referenced in: + - [Error Codes and Troubleshooting](/error-codes.md) - [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) @@ -1897,12 +2125,14 @@ Referenced in: ### tidb_nontransactional_ignore_error Referenced in: + - [Non-transactional DML](/non-transactional-dml.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_opt_agg_push_down Referenced in: + - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) @@ -1918,16 +2148,19 @@ Referenced in: ### tidb_opt_broadcast_cartesian_join Referenced in: + - No direct references found ### tidb_opt_concurrency_factor Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_correlation_exp_factor Referenced in: + - [Extended Statistics](/extended-statistics.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -1935,17 +2168,20 @@ Referenced in: ### tidb_opt_correlation_threshold Referenced in: + - [Extended Statistics](/extended-statistics.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_desc_factor Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_distinct_agg_push_down Referenced in: + - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) @@ -1956,11 +2192,13 @@ Referenced in: ### tidb_opt_enable_correlation_adjustment Referenced in: + - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_opt_insubq_to_join_and_agg Referenced in: + - [Subquery Optimization](/subquery-optimization.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Optimizer Hints](/optimizer-hints.md) @@ -1969,6 +2207,7 @@ Referenced in: ### tidb_opt_join_reorder_threshold Referenced in: + - [Join Reorder](/join-reorder.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -1977,22 +2216,26 @@ Referenced in: ### tidb_opt_limit_push_down_threshold Referenced in: + - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_opt_memory_factor Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_network_factor Referenced in: + - [Choose Indexes](/choose-index.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_objective Referenced in: + - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -2000,37 +2243,44 @@ Referenced in: ### tidb_opt_prefix_index_single_scan Referenced in: + - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_opt_range_max_size Referenced in: + - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_opt_scan_factor Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_seek_factor Referenced in: + - [Choose Indexes](/choose-index.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_opt_skew_distinct_agg Referenced in: + - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_opt_tiflash_concurrency_factor Referenced in: + - No direct references found ### tidb_opt_write_row_id Referenced in: + - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) @@ -2038,11 +2288,13 @@ Referenced in: ### tidb_optimizer_selectivity_level Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) ### tidb_partition_prune_mode Referenced in: + - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [Partitioned Table](/partitioned-table.md) - [Use MPP Mode](/tiflash/use-tiflash-mpp-mode.md) @@ -2055,6 +2307,7 @@ Referenced in: ### tidb_pprof_sql_cpu Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) @@ -2062,12 +2315,14 @@ Referenced in: ### tidb_prepared_plan_cache_memory_guard_ratio Referenced in: + - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_prepared_plan_cache_size Referenced in: + - [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -2080,6 +2335,7 @@ Referenced in: ### tidb_projection_concurrency Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -2087,6 +2343,7 @@ Referenced in: ### tidb_query_log_max_len Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Identify Slow Queries](/identify-slow-queries.md) - [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) @@ -2097,6 +2354,7 @@ Referenced in: ### tidb_read_staleness Referenced in: + - [Stale Read](/stale-read.md) - [Read Historical Data Using tidb_read_staleness](/tidb-read-staleness.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -2106,6 +2364,7 @@ Referenced in: ### tidb_replica_read Referenced in: + - [Best Practices for TiDB Read-Only Nodes Deployment](/best-practices/readonly-nodes.md) - [Three Data Centers Deployment Solution with Local Read](/best-practices/three-dc-local-read.md) - [Best Practices for TiDB on Public Cloud Platforms](/best-practices-on-public-cloud.md) @@ -2125,6 +2384,7 @@ Referenced in: ### tidb_retry_limit Referenced in: + - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [TiDB Transaction Overview](/transaction-overview.md) @@ -2136,30 +2396,35 @@ Referenced in: ### tidb_row_format_version Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) ### tidb_scatter_region Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_schema_cache_size Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_session_alias Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_skip_ascii_check Referenced in: + - [Character Set and Collation](/character-set-and-collation.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -2167,6 +2432,7 @@ Referenced in: ### tidb_skip_isolation_level_check Referenced in: + - [Transaction Isolation Levels](/transaction-isolation-levels.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -2174,6 +2440,7 @@ Referenced in: ### tidb_skip_utf8_check Referenced in: + - [Character Set and Collation](/character-set-and-collation.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -2182,6 +2449,7 @@ Referenced in: ### tidb_slow_log_threshold Referenced in: + - [Slow Query Page](/dashboard/dashboard-slow-query.md) - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) @@ -2191,6 +2459,7 @@ Referenced in: ### tidb_slow_query_file Referenced in: + - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -2198,6 +2467,7 @@ Referenced in: ### tidb_snapshot Referenced in: + - [Read Historical Data](/read-historical-data.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Stale Read](/stale-read.md) @@ -2207,6 +2477,7 @@ Referenced in: ### tidb_stmt_summary_history_size Referenced in: + - [Statement Summary Tables](/statement-summary-tables.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -2214,6 +2485,7 @@ Referenced in: ### tidb_stmt_summary_internal_query Referenced in: + - [Statement Summary Tables](/statement-summary-tables.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -2221,6 +2493,7 @@ Referenced in: ### tidb_stmt_summary_max_sql_length Referenced in: + - [Statement Summary Tables](/statement-summary-tables.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -2228,6 +2501,7 @@ Referenced in: ### tidb_stmt_summary_max_stmt_count Referenced in: + - [Statement Summary Tables](/statement-summary-tables.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -2235,6 +2509,7 @@ Referenced in: ### tidb_stmt_summary_refresh_interval Referenced in: + - [Statement Summary Tables](/statement-summary-tables.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -2242,6 +2517,7 @@ Referenced in: ### tidb_store_limit Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -2249,12 +2525,14 @@ Referenced in: ### tidb_tbl_cache_size Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_tmp_table_max_size Referenced in: + - [Temporary Tables](/temporary-tables.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -2262,6 +2540,7 @@ Referenced in: ### tidb_top_sql_max_meta_count Referenced in: + - [Top SQL](/dashboard/top-sql.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -2269,6 +2548,7 @@ Referenced in: ### tidb_top_sql_max_time_series_count Referenced in: + - [Top SQL](/dashboard/top-sql.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -2276,6 +2556,7 @@ Referenced in: ### tidb_txn_mode Referenced in: + - [TiDB Transaction Overview](/transaction-overview.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) @@ -2284,6 +2565,7 @@ Referenced in: ### tidb_use_plan_baselines Referenced in: + - [SQL Plan Management](/sql-plan-management.md) - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) @@ -2291,38 +2573,45 @@ Referenced in: ### tidb_wait_split_region_finish Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_wait_split_region_timeout Referenced in: + - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_window_concurrency Referenced in: + - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) ### tidb_window_pipelined_threshold Referenced in: + - No direct references found ### tidb_window_pipelined_threshold_size Referenced in: + - No direct references found ### tidb_window_size Referenced in: + - No direct references found ### tiflash_fastscan Referenced in: + - [Use FastScan to Accelerate TiFlash Queries](/tiflash/use-fastscan.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -2330,29 +2619,34 @@ Referenced in: ### tiflash_fine_grained_shuffle_batch_size Referenced in: + - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tiflash_fine_grained_shuffle_stream_count Referenced in: + - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tiflash_mem_quota_query_per_node Referenced in: + - [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### tiflash_query_spill_ratio Referenced in: + - [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### tiflash_replica_read Referenced in: + - [Basic Features](/basic-features.md) - [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -2360,17 +2654,20 @@ Referenced in: ### tiflash_hashagg_preaggregation_mode Referenced in: + - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tikv_client_read_timeout Referenced in: + - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### time_zone Referenced in: + - [Date and Time Types](/data-type-date-and-time.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) @@ -2382,6 +2679,7 @@ Referenced in: ### timestamp Referenced in: + - [Log Redaction](/log-redaction.md) - [Time Service Overview](/tso.md) - [Analyze Slow Queries](/analyze-slow-queries.md) @@ -2396,6 +2694,7 @@ Referenced in: ### transaction_isolation Referenced in: + - [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) - [Third-Party Tool Compatibility](/develop/dev-guide-third-party-tools-compatibility.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) @@ -2403,11 +2702,13 @@ Referenced in: ### tx_isolation Referenced in: + - [Performance Tuning Package](/performance-tuning-practices.md) ### txn_scope Referenced in: + - [Resource Control](/tidb-resource-control.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -2415,6 +2716,7 @@ Referenced in: ### validate_password.check_user_name Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2422,6 +2724,7 @@ Referenced in: ### validate_password.dictionary Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) @@ -2430,6 +2733,7 @@ Referenced in: ### validate_password.enable Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) @@ -2439,6 +2743,7 @@ Referenced in: ### validate_password.length Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2447,6 +2752,7 @@ Referenced in: ### validate_password.mixed_case_count Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -2455,6 +2761,7 @@ Referenced in: ### validate_password.number_count Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -2463,6 +2770,7 @@ Referenced in: ### validate_password.policy Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -2471,6 +2779,7 @@ Referenced in: ### validate_password.special_char_count Referenced in: + - [TiDB Password Management](/password-management.md) - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) @@ -2479,6 +2788,7 @@ Referenced in: ### version Referenced in: + - [TiDB Tools User Guide](/ecosystem-tool-user-guide.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [Upgrade Monitoring Services](/upgrade-monitoring-services.md) @@ -2487,16 +2797,19 @@ Referenced in: ### version_compile_machine Referenced in: + - No direct references found ### version_compile_os Referenced in: + - No direct references found ### wait_timeout Referenced in: + - [Best Practices for Java Applications](/best-practices/java-app-best-practices.md): Discusses setting wait_timeout for Java applications - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md): Mentions wait_timeout in context of lock wait timeouts - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md): Suggests adjusting wait_timeout for connection pools @@ -2511,10 +2824,11 @@ Referenced in: ### warning_count Referenced in: + - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md): Added support for warning_count session variable ### windowing_use_high_precision Referenced in: -- [Window Functions](/functions-and-operators/window-functions.md): Describes using windowing_use_high_precision to control precision mode +- [Window Functions](/functions-and-operators/window-functions.md): Describes using windowing_use_high_precision to control precision mode From ca4803baf6ab06f8434e8af091d32ad732a01903 Mon Sep 17 00:00:00 2001 From: lilin90 Date: Fri, 3 Jan 2025 20:27:41 +0800 Subject: [PATCH 04/24] Update wording --- system-variable-reference.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index d9e91af5d7cbd..eb763f404d4a5 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -3,7 +3,7 @@ title: System Variable Reference summary: A list of all TiDB system variables and their references in the documentation. --- -# System Variables References +# System Variable Reference This document lists all TiDB system variables and the files that reference them in the documentation. View the [System Variables](/system-variables.md) for more details of each variable. From bcad17c05f332b188c39372cbfb89eab2e93131b Mon Sep 17 00:00:00 2001 From: lilin90 Date: Mon, 6 Jan 2025 17:47:49 +0800 Subject: [PATCH 05/24] Organize list content in order --- system-variable-reference.md | 429 ++++++++++++++++++----------------- 1 file changed, 223 insertions(+), 206 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index eb763f404d4a5..061e9c20937a3 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -7,17 +7,17 @@ summary: A list of all TiDB system variables and their references in the documen This document lists all TiDB system variables and the files that reference them in the documentation. View the [System Variables](/system-variables.md) for more details of each variable. -## Variables +## Variable reference ### allow_auto_random_explicit_insert Referenced in: - [AUTO_RANDOM](/auto-random.md) -- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) -- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) -- [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) - [Insert Data](/develop/dev-guide-insert-data.md) +- [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) +- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) ### authentication_ldap_sasl_auth_method_name @@ -143,38 +143,38 @@ Referenced in: Referenced in: +- [AUTO_INCREMENT](/auto-increment.md) - [AUTO_RANDOM](/auto-random.md) -- [Auto-Increment](/auto-increment.md) -- [Error Codes](/error-codes.md) -- [Bidirectional Replication Between TiDB Clusters](/ticdc/ticdc-bidirectional-replication.md) +- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) -- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) ### auto_increment_offset Referenced in: +- [AUTO_INCREMENT](/auto-increment.md) - [AUTO_RANDOM](/auto-random.md) -- [Auto-Increment](/auto-increment.md) -- [Error Codes](/error-codes.md) -- [Bidirectional Replication Between TiDB Clusters](/ticdc/ticdc-bidirectional-replication.md) +- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) -- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) ### autocommit Referenced in: +- [Non-Transactional DML Statements](/non-transactional-dml.md) - [Transaction Overview](/transaction-overview.md) -- [Pessimistic Transaction](/pessimistic-transaction.md) +- [Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Temporary Tables](/temporary-tables.md) -- [Non-Transactional DML](/non-transactional-dml.md) -- [Sample Application: Use Hibernate](/develop/dev-guide-sample-application-java-hibernate.md) -- [Sample Application: Use MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) -- [TiDB 6.5.3 Release Notes](/releases/release-6.5.3.md) +- [Connect to TiDB with Hibernate](/develop/dev-guide-sample-application-java-hibernate.md) +- [Connect to TiDB with MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 6.5.3 Release Notes](/releases/release-6.5.3.md) ### block_encryption_mode @@ -186,36 +186,36 @@ Referenced in: Referenced in: -- [GBK Character Set Support](/character-set-gbk.md) -- [Dumpling Overview](/dumpling-overview.md) -- [Information Schema](/information-schema/information-schema-views.md) - [Character Sets and Collations](/character-set-and-collation.md) -- [SET NAMES](/sql-statements/sql-statement-set-names.md) -- [Views](/views.md) +- [Dumpling Overview](/dumpling-overview.md) +- [GBK Character Set](/character-set-gbk.md) +- [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [Use Views](/develop/dev-guide-use-views.md) +- [Views](/views.md) +- [`VIEWS` INFORMATION_SCHEMA Table](/information-schema/information-schema-views.md) ### character_set_connection Referenced in: -- [GBK Character Set Support](/character-set-gbk.md) -- [Dumpling Overview](/dumpling-overview.md) - [Character Sets and Collations](/character-set-and-collation.md) -- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [Dumpling Overview](/dumpling-overview.md) +- [GBK Character Set](/character-set-gbk.md) +- [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) ### character_set_database Referenced in: - [Character Sets and Collations](/character-set-and-collation.md) -- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) ### character_set_results Referenced in: - [Character Sets and Collations](/character-set-and-collation.md) -- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) @@ -224,18 +224,18 @@ Referenced in: Referenced in: - [Character Sets and Collations](/character-set-and-collation.md) -- [SET NAMES](/sql-statements/sql-statement-set-names.md) +- [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) ### collation_connection Referenced in: -- [String Functions](/functions-and-operators/string-functions.md) -- [Information Schema](/information-schema/information-schema-views.md) - [Character Sets and Collations](/character-set-and-collation.md) -- [Views](/views.md) +- [String Functions](/functions-and-operators/string-functions.md) - [Use Views](/develop/dev-guide-use-views.md) +- [Views](/views.md) +- [`VIEWS` INFORMATION_SCHEMA Table](/information-schema/information-schema-views.md) ### collation_database @@ -248,22 +248,22 @@ Referenced in: Referenced in: - [Character Sets and Collations](/character-set-and-collation.md) -- [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) ### cte_max_recursion_depth Referenced in: -- [High Concurrency Best Practices](/best-practices/high-concurrency-best-practices.md) +- [Highly Concurrent Write Best Practices](/best-practices/high-concurrency-best-practices.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) ### datadir Referenced in: -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### ddl_slow_threshold @@ -286,8 +286,8 @@ Referenced in: Referenced in: - [Character Sets and Collations](/character-set-and-collation.md) -- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### default_password_lifetime @@ -321,13 +321,13 @@ Referenced in: Referenced in: -- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md): Added support for this variable. +- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### foreign_key_checks Referenced in: -- [Foreign Key](/foreign-key.md) +- [FOREIGN KEY Constraints](/foreign-key.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### group_concat_max_len @@ -341,93 +341,92 @@ Referenced in: Referenced in: -- [Certificate-based Authentication](/certificate-authentication.md) +- [Certificate-Based Authentication for Login](/certificate-authentication.md) ### have_ssl Referenced in: -- [Certificate-based Authentication](/certificate-authentication.md) +- [Certificate-Based Authentication for Login](/certificate-authentication.md) ### hostname Referenced in: -- [The mysql.user Table](/mysql-schema/mysql-schema-user.md) -- [Best Practices for HAProxy](/best-practices/haproxy-best-practices.md) +- [Best Practices for Using HAProxy in TiDB](/best-practices/haproxy-best-practices.md) +- [The `mysql.user` Table](/mysql-schema/mysql-schema-user.md) ### identity Referenced in: - [Configure SSO for TiDB Dashboard](/dashboard/dashboard-session-sso.md) -- [Secure TiDB Dashboard](/dashboard/dashboard-ops-security.md) - [Enable TLS Between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) - [Password Management](/password-management.md) +- [Secure TiDB Dashboard](/dashboard/dashboard-ops-security.md) ### init_connect Referenced in: -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md): Improved MySQL compatibility with parsing check -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md): Added as a new feature -- [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md): Added support for this system variable -- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md): Added support for this system variable and associated features - +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) +- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md) ### innodb_lock_wait_timeout Referenced in: -- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [Pessimistic Transaction Model](/pessimistic-transaction.md) - [TiKV Configuration File](/tikv-configuration-file.md) +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [TiDB 3.0.6 Release Notes](/releases/release-3.0.6.md) ### interactive_timeout Referenced in: +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [TiDB FAQs](/faq/manage-cluster-faq.md) -- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### last_insert_id Referenced in: - [AUTO_RANDOM](/auto-random.md) +- [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) - [Information Functions](/functions-and-operators/information-functions.md) -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) -- [TiDB 2.1 RC2 Release Notes](/releases/release-2.1-rc.2.md) -- [TiDB 2.1.17 Release Notes](/releases/release-2.1.17.md) -- [TiDB 3.1.0-rc Release Notes](/releases/release-3.1.0-rc.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) -- [Build a Simple CRUD App with TiDB and Ruby](/develop/dev-guide-sample-application-ruby-mysql2.md) +- [TiDB 3.1.0-rc Release Notes](/releases/release-3.1.0-rc.md) +- [TiDB 2.1.17 Release Notes](/releases/release-2.1.17.md) +- [TiDB 2.1 RC2 Release Notes](/releases/release-2.1-rc.2.md) ### last_plan_from_binding Referenced in: -- [SQL Plan Management](/sql-plan-management.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [TiDB 4.0.12 Release Notes](/releases/release-4.0.12.md) ### last_plan_from_cache Referenced in: -- [SQL Prepared Plan Cache](/sql-prepared-plan-cache.md) -- [SQL Non-prepared Plan Cache](/sql-non-prepared-plan-cache.md) -- [Choose Indexes](/choose-index.md) +- [Index Selection](/choose-index.md) +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) ### last_sql_use_alloc Referenced in: -- [What's New in TiDB 6.4.0](/releases/release-6.4.0.md): Added support for this variable. +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### license @@ -439,42 +438,42 @@ Referenced in: Referenced in: -- [TiDB Data Migration FAQs](/dm/dm-faq.md) +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) -- [DM Task Configuration File](/dm/task-configuration-file-full.md) -- [TiDB Cloud Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) -- [Release Notes](/releases/release-6.1.0.md) -- [Release Notes](/releases/release-5.2.4.md) -- [Release Notes](/releases/release-3.0.2.md) -- [Release Notes](/releases/release-2.1.5.md) -- [Release Notes](/releases/release-2.1-rc.2.md) -- [Release Notes](/releases/release-2.0.6.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) +- [TiDB 3.0.2 Release Notes](/releases/release-3.0.2.md) +- [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) +- [TiDB 2.1 RC2 Release Notes](/releases/release-2.1-rc.2.md) +- [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) ### max_connections Referenced in: -- [TiDB FAQs](/faq/manage-cluster-faq.md) -- [Dynamic Configuration](/dynamic-config.md) -- [Integrate ProxySQL with TiDB](/develop/dev-guide-proxysql-integration.md) -- [TiDB Cloud Data Migration Precheck and Troubleshooting](/tidb-cloud/tidb-cloud-dm-precheck-and-troubleshooting.md) +- [Integrate TiDB with ProxySQL](/develop/dev-guide-proxysql-integration.md) +- [Modify Configuration Dynamically](/dynamic-config.md) +- [Precheck Errors, Migration Errors, and Alerts for Data Migration](https://docs.pingcap.com/tidbcloud/tidb-cloud-dm-precheck-and-troubleshooting) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### max_execution_time Referenced in: -- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) -- [SQL Plan Management](/sql-plan-management.md) -- [SQL Prepared Plan Cache](/sql-prepared-plan-cache.md) -- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) -- [SQL FAQs](/faq/sql-faq.md) +- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [Optimizer Hints](/optimizer-hints.md) -- [Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [SQL FAQs](/faq/sql-faq.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [What's New in TiDB 6.4.0](/releases/release-6.4.0.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) - [TiDB 2.1.14 Release Notes](/releases/release-2.1.14.md) @@ -482,7 +481,7 @@ Referenced in: Referenced in: -- [PREPARE | TiDB SQL Statement Reference](/sql-statements/sql-statement-prepare.md) +- [The `PREPARE` SQL Statement](/sql-statements/sql-statement-prepare.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) @@ -490,14 +489,14 @@ Referenced in: Referenced in: -- [MPP Query Execution](/explain-mpp.md) +- [Explain Statements in the MPP Mode](/explain-mpp.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### mpp_version Referenced in: -- [MPP Query Execution](/explain-mpp.md) +- [Explain Statements in the MPP Mode](/explain-mpp.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### password_history @@ -505,7 +504,7 @@ Referenced in: Referenced in: - [Password Management](/password-management.md) -- [The MYSQL Schema](/mysql-schema/mysql-schema.md) +- [The `mysql` Schema](/mysql-schema/mysql-schema.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -522,21 +521,21 @@ Referenced in: - [Tune Region Performance](/tune-region-performance.md) - [TiDB Features](/basic-features.md) -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) ### plugin_dir Referenced in: -- [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) ### plugin_load Referenced in: -- [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### port @@ -546,7 +545,7 @@ Referenced in: - [TiFlash Deployment Topology](/tiflash-deployment-topology.md) - [TSO Configuration File](/tso-configuration-file.md) -### rand_seed1 + ### require_secure_transport Referenced in: + + +- [Limited SQL features on TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Cloud Release Notes in 2022](/tidb-cloud/release-notes-2022.md) +- [TLS Connections to TiDB Cloud Dedicated](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) + + + + + - [Enable TLS Between Clients and Servers](/enable-tls-between-clients-and-servers.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) -- [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -- [TiDB Cloud Feature Limitations](/tidb-cloud/limited-sql-features.md) -- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) -- [Connect to TiDB Dedicated via TLS](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) +- [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### skip_name_resolve + + + ### socket Referenced in: -- [HAProxy Best Practices](/best-practices/haproxy-best-practices.md) +- [Best Practices for Using HAProxy in TiDB](/best-practices/haproxy-best-practices.md) - [SHOW CONFIG](/sql-statements/sql-statement-show-config.md) ### sql_mode Referenced in: -- [Date and Time Types](/data-type-date-and-time.md) -- [Avoid Unstable Result Set](/develop/dev-guide-unstable-result-set.md) -- [DM Open API](/dm/dm-open-api.md) -- [DM Task Configuration File](/dm/task-configuration-file-full.md) -- [SQL FAQs](/faq/sql-faq.md) - [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) +- [Date and Time Types](/data-type-date-and-time.md) +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) +- [Handle Unstable Result Set Errors](/develop/dev-guide-unstable-result-set.md) +- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [Miscellaneous Functions](/functions-and-operators/miscellaneous-functions.md) +- [Partitioning](/partitioned-table.md) - [Precision Math](/functions-and-operators/precision-math.md) -- [Partitioned Table](/partitioned-table.md) - [Privilege Management](/privilege-management.md) - [Schema Object Names](/schema-object-names.md) +- [`SET [GLOBAL|SESSION] `](/sql-statements/sql-statement-set-variable.md) +- [`SHOW ERRORS`](/sql-statements/sql-statement-show-errors.md) +- [`SHOW WARNINGS`](/sql-statements/sql-statement-show-warnings.md) +- [SQL FAQs](/faq/sql-faq.md) - [SQL Mode](/sql-mode.md) -- [SET](/sql-statements/sql-statement-set-variable.md) -- [SHOW ERRORS](/sql-statements/sql-statement-show-errors.md) -- [SHOW WARNINGS](/sql-statements/sql-statement-show-warnings.md) - [TiDB Lightning FAQ](/tidb-lightning/tidb-lightning-faq.md) -- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) -- [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) +- [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [User Account Management](/user-account-management.md) +- [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) ### sql_require_primary_key Referenced in: -- [DM Task Configuration File](/dm/task-configuration-file-full.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md): Added support for this variable. +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### sql_select_limit Referenced in: -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) -- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md): Added support for this variable as session and global variable. +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) ### ssl_ca Referenced in: -- [Certificate-Based Authentication](/certificate-authentication.md) -- [Build a Simple CRUD App with Node.js and MySQL (mysql2)](/develop/dev-guide-sample-application-nodejs-mysql2.md) -- [Build a Simple CRUD App with Node.js and MySQL (mysql)](/develop/dev-guide-sample-application-nodejs-mysqljs.md) -- [Build a Simple CRUD App with Node.js and Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) -- [Build a Simple CRUD App with Node.js and TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) -- [Build a Simple CRUD App with Python and Django](/develop/dev-guide-sample-application-python-django.md) -- [Build a Simple CRUD App with Python and MySQL Connector](/develop/dev-guide-sample-application-python-mysql-connector.md) -- [Build a Simple CRUD App with Python and Peewee](/develop/dev-guide-sample-application-python-peewee.md) -- [Build a Simple CRUD App with Python and PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) -- [Build a Simple CRUD App with Python and SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) -- [Build a Simple CRUD App with Ruby and mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) -- [Get Started with Vector Search Using Python](/vector-search-get-started-using-python.md) -- [Integrate Vector Search with Jina AI Embedding](/vector-search-integrate-with-jinaai-embedding.md) +- [Certificate-Based Authentication for Login](/certificate-authentication.md) +- [Connect to TiDB with Django](/develop/dev-guide-sample-application-python-django.md) +- [Connect to TiDB with MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) +- [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) +- [Connect to TiDB with mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md) +- [Connect to TiDB with node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md) +- [Connect to TiDB with peewee](/develop/dev-guide-sample-application-python-peewee.md) +- [Connect to TiDB with Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) +- [Connect to TiDB with PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) +- [Connect to TiDB with SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) +- [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) +- [Get Started with TiDB + AI via Python](/vector-search-get-started-using-python.md) +- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search-integrate-with-jinaai-embedding.md) - [Integrate Vector Search with LangChain](/vector-search-integrate-with-langchain.md) - [Integrate Vector Search with LlamaIndex](/vector-search-integrate-with-llamaindex.md) - [Integrate Vector Search with SQLAlchemy](/vector-search-integrate-with-sqlalchemy.md) @@ -648,13 +656,13 @@ Referenced in: Referenced in: -- [Certificate-Based Authentication](/certificate-authentication.md) +- [Certificate-Based Authentication for Login](/certificate-authentication.md) ### ssl_key Referenced in: -- [Certificate-Based Authentication](/certificate-authentication.md) +- [Certificate-Based Authentication for Login](/certificate-authentication.md) ### system_time_zone @@ -668,19 +676,19 @@ Referenced in: Referenced in: - [Configure Time Zone](/configure-time-zone.md) -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [Date and Time Types](/data-type-date-and-time.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) ### tidb_adaptive_closest_read_threshold Referenced in: - [Follower Read](/follower-read.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_allow_tiflash_cop @@ -692,10 +700,10 @@ Referenced in: Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) -- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) +- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_allow_fallback_to_tikv @@ -707,30 +715,30 @@ Referenced in: Referenced in: -- [Basic Features](/basic-features.md) -- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Features](/basic-features.md) ### tidb_allow_mpp Referenced in: -- [MPP Query Execution](/explain-mpp.md) -- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) -- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) +- [Explain Statements in the MPP Mode](/explain-mpp.md) - [Explore HTAP](/explore-htap.md) +- [TiDB TPC-H Performance Test Report -- v5.4](/benchmark/v5.4-performance-benchmarking-with-tpch.md) +- [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [TiDB TPC-H Performance Test Report -- v5.4](/benchmark/v5.4-performance-benchmarking-with-tpch.md) ### tidb_allow_remove_auto_inc Referenced in: - [Auto-increment](/auto-increment.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [MySQL Compatibility](/mysql-compatibility.md) -- [Third-Party Tools Compatibility](/develop/dev-guide-third-party-tools-compatibility.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) @@ -738,17 +746,17 @@ Referenced in: Referenced in: +- [How to Run CH-benCHmark Test on TiDB](/benchmark/benchmark-tidb-using-ch.md) +- [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) - [TiDB Performance Tuning Configuration](/tidb-performance-tuning-config.md) -- [TiUP Bench User Guide](/tiup/tiup-bench.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [Benchmark TiDB Using ClickHouse](/benchmark/benchmark-tidb-using-ch.md) ### tidb_analyze_distsql_scan_concurrency Referenced in: -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) ### tidb_analyze_partition_concurrency @@ -756,27 +764,27 @@ Referenced in: - [Statistics](/statistics.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -- [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) +- [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) ### tidb_analyze_version Referenced in: -- [Troubleshoot TiDB Out of Memory (OOM) Errors](/troubleshoot-tidb-oom.md) - [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) +- [SHOW ANALYZE STATUS](/sql-statements/sql-statement-show-analyze-status.md) - [Statistics](/statistics.md) -- [Configure Memory Usage](/configure-memory-usage.md) -- [SHOW ANALYZE STATUS | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-analyze-status.md) +- [TiDB Memory Control](/configure-memory-usage.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) -- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) ### tidb_analyze_skip_column_types @@ -790,10 +798,10 @@ Referenced in: Referenced in: -- [Troubleshoot TiDB CPU Performance Issues](/troubleshoot-cpu-issues.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics](/statistics.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) ### tidb_auto_analyze_partition_batch_size @@ -801,24 +809,24 @@ Referenced in: Referenced in: - [Statistics](/statistics.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_auto_analyze_ratio Referenced in: -- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) ### tidb_auto_analyze_start_time Referenced in: +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics](/statistics.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [Troubleshoot TiDB CPU Performance Issues](/troubleshoot-cpu-issues.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) ### tidb_auto_build_stats_concurrency @@ -831,14 +839,14 @@ Referenced in: Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) ### tidb_backoff_weight Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) ### tidb_batch_commit @@ -852,7 +860,7 @@ Referenced in: Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) ### tidb_batch_insert @@ -860,26 +868,26 @@ Referenced in: - [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) -### tidb_batch_pending_tiflash_count + ### tidb_broadcast_join_threshold_count Referenced in: -- [MPP Execution](/explain-mpp.md) -- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [Explain Statements in the MPP Mode](/explain-mpp.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_broadcast_join_threshold_size Referenced in: -- [MPP Execution](/explain-mpp.md) +- [Explain Statements in the MPP Mode](/explain-mpp.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -888,14 +896,14 @@ Referenced in: Referenced in: +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics](/statistics.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB Cloud v8.1 Performance Benchmarking with TPC-C](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v6.5 Performance Benchmarking with TPC-C](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.1 Performance Benchmarking with TPC-C](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.5 Performance Benchmarking with TPC-C](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) +- [TiDB TPC-H Performance Test Report — v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [TiDB 4.0 Performance Benchmarking with TPC-H](/benchmark/v4.0-performance-benchmarking-with-tpch.md) ### tidb_build_sampling_stats_concurrency @@ -908,8 +916,8 @@ Referenced in: Referenced in: -- [SQL Plan Management](/sql-plan-management.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) @@ -917,69 +925,78 @@ Referenced in: Referenced in: -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_check_mb4_value_in_utf8 Referenced in: -- [Character Set and Collation](/character-set-and-collation.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [Upgrade FAQs](/faq/upgrade-faq.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Character Sets and Collations](/character-set-and-collation.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) ### tidb_checksum_table_concurrency Referenced in: - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) ### tidb_committer_concurrency Referenced in: -- [Grafana TiDB Dashboard](/grafana-tidb-dashboard.md) + + +- [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) + + + + + +- [TiDB Cloud Release Notes in 2022](/tidb-cloud/release-notes-2022.md) + + ### tidb_config Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) -- [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +- [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) ### tidb_constraint_check_in_place Referenced in: +- [COMMIT](/sql-statements/sql-statement-commit.md) - [Constraints](/constraints.md) -- [Task Configuration File](/dm/task-configuration-file-full.md) +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [Error Codes and Troubleshooting](/error-codes.md) -- [Pessimistic Transaction Model](/pessimistic-transaction.md) +- [Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Transaction Overview](/transaction-overview.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) -- [COMMIT | TiDB SQL Statement Reference](/sql-statements/sql-statement-commit.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB Transaction Overview](/transaction-overview.md) ### tidb_constraint_check_in_place_pessimistic Referenced in: - [Constraints](/constraints.md) -- [Dynamic Configuration](/dynamic-config.md) - [Error Codes and Troubleshooting](/error-codes.md) -- [Pessimistic Transaction Model](/pessimistic-transaction.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -- [SAVEPOINT | TiDB SQL Statement Reference](/sql-statements/sql-statement-savepoint.md) +- [Modify Configuration Dynamically](/dynamic-config.md) +- [Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_cost_model_version @@ -1007,7 +1024,7 @@ Referenced in: Referenced in: -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1023,7 +1040,7 @@ Referenced in: - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [Check Environment Before Deployment](/check-before-deployment.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -1038,7 +1055,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SQL FAQs](/faq/sql-faq.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) @@ -1058,7 +1075,7 @@ Referenced in: - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) - [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SQL FAQs](/faq/sql-faq.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [SQL Plan Management Best Practices](/explain-walkthrough.md) @@ -1069,7 +1086,7 @@ Referenced in: - [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) -- [Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SQL FAQs](/faq/sql-faq.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) From dfff8cae6b477a7625609562ea2b384f37eebc23 Mon Sep 17 00:00:00 2001 From: lilin90 Date: Mon, 6 Jan 2025 17:52:10 +0800 Subject: [PATCH 06/24] Comment out variables without references --- system-variable-reference.md | 44 ++++++++++++++++++------------------ 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 061e9c20937a3..51c0aafb2412d 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -1822,11 +1822,11 @@ Referenced in: - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -### tidb_hash_exchange_with_new_collation + ### tidb_hash_join_concurrency @@ -1862,11 +1862,11 @@ Referenced in: - [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) - [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -### tidb_host_lookup_max_retries + ### tidb_ignore_prepared_cache_close_stmt @@ -1878,11 +1878,11 @@ Referenced in: - [Performance Tuning Methods](/performance-tuning-methods.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_ignore_index_hint + ### tidb_index_join_batch_size @@ -1951,11 +1951,11 @@ Referenced in: - [TiDB v5.4 TPC-H Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpch.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -### tidb_last_txn_info + ### tidb_max_auto_analyze_time @@ -1986,7 +1986,7 @@ Referenced in: - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) - [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) -### tidb_max_disk_usage + ### tidb_mem_oom_action @@ -2027,11 +2027,11 @@ Referenced in: - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -### tidb_mem_quota_apply_cache + ### tidb_mem_quota_binding_cache @@ -2162,11 +2162,11 @@ Referenced in: - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) -### tidb_opt_broadcast_cartesian_join + ### tidb_opt_concurrency_factor @@ -2288,11 +2288,11 @@ Referenced in: - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tidb_opt_tiflash_concurrency_factor + ### tidb_opt_write_row_id @@ -2607,7 +2607,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -### tidb_window_pipelined_threshold + ### tiflash_fastscan @@ -2811,7 +2811,7 @@ Referenced in: - [Upgrade Monitoring Services](/upgrade-monitoring-services.md) - [Foreign Key](/foreign-key.md) -### version_compile_machine + ### wait_timeout @@ -2842,10 +2842,10 @@ Referenced in: Referenced in: -- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md): Added support for warning_count session variable +- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### windowing_use_high_precision Referenced in: -- [Window Functions](/functions-and-operators/window-functions.md): Describes using windowing_use_high_precision to control precision mode +- [Window Functions](/functions-and-operators/window-functions.md) From 9ba07ce36a83f00c631a161d1d0bc1801169416b Mon Sep 17 00:00:00 2001 From: lilin90 Date: Mon, 6 Jan 2025 17:58:48 +0800 Subject: [PATCH 07/24] Add a note for the content organization order --- system-variable-reference.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/system-variable-reference.md b/system-variable-reference.md index 51c0aafb2412d..6f94d7bdfcf45 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -3,6 +3,11 @@ title: System Variable Reference summary: A list of all TiDB system variables and their references in the documentation. --- + + # System Variable Reference This document lists all TiDB system variables and the files that reference them in the documentation. View the [System Variables](/system-variables.md) for more details of each variable. From 7232978b7acfb19f3e63f5dae2ae59b109da1868 Mon Sep 17 00:00:00 2001 From: lilin90 Date: Mon, 6 Jan 2025 18:46:32 +0800 Subject: [PATCH 08/24] Update list content in order --- system-variable-reference.md | 808 ++++++++++++++++++----------------- 1 file changed, 414 insertions(+), 394 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 6f94d7bdfcf45..f1439c7ec55da 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -4,9 +4,9 @@ summary: A list of all TiDB system variables and their references in the documen --- +- For non-release-notes docs, put them in ascending alphabetical order. +- For release notes docs, put them in descending order by version number. +- Put release notes docs after non-release-notes docs. --> # System Variable Reference @@ -569,7 +569,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](/tidb-cloud/limited-sql-features.md) -- [TiDB Cloud Release Notes in 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TLS Connections to TiDB Cloud Dedicated](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) @@ -963,7 +963,7 @@ Referenced in: -- [TiDB Cloud Release Notes in 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) @@ -1015,83 +1015,83 @@ Referenced in: Referenced in: -- [Timestamp Oracle in TiDB](/tso.md) -- [External Timestamp in TiDB](/tidb-external-ts.md) -- [Disaster Recovery Secondary Cluster](/dr-secondary-cluster.md) -- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [FLASHBACK CLUSTER | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-cluster.md) -- [Check Upstream and Downstream Versions](/ticdc/ticdc-upstream-downstream-check.md) -- [SHOW BUILTINS | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-builtins.md) +- [Disaster Recovery Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) +- [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) +- [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) +- [Timestamp Oracle (TSO) in TiDB](/tso.md) +- [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) ### tidb_ddl_disk_quota Referenced in: - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_ddl_enable_fast_reorg Referenced in: -- [Basic Features](/basic-features.md) -- [Hardware and Software Requirements](/hardware-and-software-requirements.md) -- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) -- [ADMIN SHOW DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-show-ddl.md) -- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) -- [TiDB Configuration File](/tidb-configuration-file.md) +- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) - [Check Environment Before Deployment](/check-before-deployment.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [Hardware and Software Requirements](/hardware-and-software-requirements.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [TiDB Features](/basic-features.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_ddl_error_count_limit Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) ### tidb_ddl_flashback_concurrency Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_ddl_reorg_batch_size - + Referenced in: -- [TiDB DDL](/ddl-introduction.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) -- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [SQL Plan Management Best Practices](/explain-walkthrough.md) +- [TiDB DDL](/ddl-introduction.md) +- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) ### tidb_ddl_reorg_priority Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) @@ -1099,29 +1099,29 @@ Referenced in: Referenced in: -- [TiDB DDL](/ddl-introduction.md) -- [Troubleshoot CPU Issues](/troubleshoot-cpu-issues.md) -- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) -- [ADMIN SHOW DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-show-ddl.md) -- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [SQL Plan Management Best Practices](/explain-walkthrough.md) +- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [Online Workloads and ADD INDEX Operations](/benchmark/online-workloads-and-add-index-operations.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) - [SQL FAQs](/faq/sql-faq.md) +- [SQL Plan Management Best Practices](/explain-walkthrough.md) - [TiDB Cloud Limited SQL Features](/tidb-cloud/limited-sql-features.md) -- [SQL Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) +- [TiDB DDL](/ddl-introduction.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) -- [Online Workloads and ADD INDEX Operations](/benchmark/online-workloads-and-add-index-operations.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [Troubleshoot CPU Issues](/troubleshoot-cpu-issues.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) -- [TiDB 2.1.4 Release Notes](/releases/release-2.1.4.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) +- [TiDB 2.1.4 Release Notes](/releases/release-2.1.4.md) ### tidb_ddl_reorg_max_write_speed Referenced in: -- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) ### tidb_enable_dist_task @@ -1133,9 +1133,9 @@ Referenced in: - [Upgrade TiDB Using TiUP](/smooth-upgrade-tidb.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) -- [ADMIN SHOW DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-show-ddl.md) -- [ADMIN ALTER DDL | TiDB SQL Statement Reference](/sql-statements/sql-statement-admin-alter-ddl.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) +- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) - [TiDB Global Sort](/tidb-global-sort.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) @@ -1143,10 +1143,10 @@ Referenced in: Referenced in: +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [TiDB Global Sort](/tidb-global-sort.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) -- [TiDB Global Sort](/tidb-global-sort.md) ### tidb_default_string_match_selectivity @@ -1158,62 +1158,62 @@ Referenced in: Referenced in: +- [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) +- [TiDB TPC-C Performance Test Report -- v3.0 vs v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) - [TiDB Transaction Overview](/transaction-overview.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB 3.0.0-rc.2 Release Notes](/releases/release-3.0.0-rc.2.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [TiDB 3.0.0-rc.2 Release Notes](/releases/release-3.0.0-rc.2.md) - [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) -- [TiDB 2.0.5 Release Notes](/releases/release-2.0.5.md) - [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -- [TiDB TPC-C Performance Test Report -- v3.0 vs v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) -- [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB 2.0.5 Release Notes](/releases/release-2.0.5.md) ### tidb_distsql_scan_concurrency Referenced in: -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [Configure Memory Usage](/configure-memory-usage.md) - [Dumpling Overview](/dumpling-overview.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [INFORMATION_SCHEMA SLOW_QUERY Table](/information-schema/information-schema-slow-query.md) -- [Statistics in TiDB](/statistics.md) -- [Configure Memory Usage](/configure-memory-usage.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [Statistics in TiDB](/statistics.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_dml_batch_size Referenced in: -- [LOAD DATA | TiDB SQL Statement Reference](/sql-statements/sql-statement-load-data.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [LOAD DATA](/sql-statements/sql-statement-load-data.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 4.0.0-beta Release Notes](/releases/release-4.0.0-beta.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 4.0.0-beta Release Notes](/releases/release-4.0.0-beta.md) ### tidb_dml_type Referenced in: -- [Identify Slow Queries](/identify-expensive-queries.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) -- [IMPORT INTO vs TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [Basic Features](/basic-features.md) - [Configure Memory Usage](/configure-memory-usage.md) +- [Identify Slow Queries](/identify-expensive-queries.md) +- [IMPORT INTO vs TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1221,54 +1221,55 @@ Referenced in: Referenced in: -- [Transaction Overview](/transaction-overview.md) - [Basic Features](/basic-features.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [Transaction Overview](/transaction-overview.md) - [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) - [TiDB Sysbench Performance Test Report - v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [TiDB Sysbench Performance Test Report - v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) ### tidb_enable_async_commit Referenced in: -- [Transaction Overview](/transaction-overview.md) - [Basic Features](/basic-features.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) -- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [Transaction Overview](/transaction-overview.md) - [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) - [TiDB Sysbench Performance Test Report - v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [TiDB Sysbench Performance Test Report - v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) ### tidb_enable_analyze_snapshot @@ -1280,11 +1281,11 @@ Referenced in: Referenced in: -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Replayer User Guide](/sql-plan-replayer.md) - [Statistics in TiDB](/statistics.md) -- [SQL FAQs](/faq/sql-faq.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_enable_auto_analyze_priority_queue @@ -1294,8 +1295,8 @@ Referenced in: - [Statistics in TiDB](/statistics.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1303,115 +1304,122 @@ Referenced in: Referenced in: -- [CREATE INDEX | TiDB SQL Statement Reference](/sql-statements/sql-statement-create-index.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_enable_batch_dml Referenced in: -- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) ### tidb_enable_cascades_planner Referenced in: - [Basic Features](/basic-features.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_enable_check_constraint Referenced in: -- [INFORMATION_SCHEMA TIDB_CHECK_CONSTRAINTS Table](/information-schema/information-schema-tidb-check-constraints.md) -- [INFORMATION_SCHEMA CHECK_CONSTRAINTS Table](/information-schema/information-schema-check-constraints.md) -- [Constraints](/constraints.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [TiProxy Overview](/tiproxy/tiproxy-overview.md) +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_enable_chunk_rpc Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) ### tidb_enable_clustered_index Referenced in: -- [Clustered Indexes](/clustered-indexes.md) - [Backup & Restore Overview](/br/backup-and-restore-overview.md) +- [Clustered Indexes](/clustered-indexes.md) +- [Create a Table](/develop/dev-guide-create-table.md) +- [Schema Design Overview](/develop/dev-guide-schema-design-overview.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) -- [TiDB 5.0 GA Release Notes](/releases/release-5.0.0.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [Schema Design Overview](/develop/dev-guide-schema-design-overview.md) -- [Create a Table](/develop/dev-guide-create-table.md) - [TiDB TPC-C Performance Test Report -- v6.1 vs. v6.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4 vs. v5.3](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) - [TiDB TPC-C Performance Test Report -- v5.3 vs. v5.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2 vs. v5.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1 vs. v5.0](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) - [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) - [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) - [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) - [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB TPC-C Performance Test Report -- v5.4 vs. v5.3](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB TPC-C Performance Test Report -- v5.2 vs. v5.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1 vs. v5.0](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 5.0.0 GA Release Notes](/releases/release-5.0.0.md) +- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) ### tidb_enable_ddl Referenced in: - [Dynamic Configuration](/dynamic-config.md) -- [Topology Reference](/tiup/tiup-cluster-topology-reference.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [Topology Reference](/tiup/tiup-cluster-topology-reference.md) ### tidb_enable_collect_execution_info Referenced in: - [Dynamic Configuration](/dynamic-config.md) -- [INFORMATION_SCHEMA TIDB_INDEX_USAGE Table](/information-schema/information-schema-tidb-index-usage.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Identify Slow Queries](/identify-slow-queries.md) +- [INFORMATION_SCHEMA TIDB_INDEX_USAGE Table](/information-schema/information-schema-tidb-index-usage.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_enable_column_tracking Referenced in: -- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) ### tidb_enable_enhanced_security Referenced in: -- [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) +- [BACKUP](/sql-statements/sql-statement-backup.md) - [Basic Features](/basic-features.md) -- [BACKUP | TiDB SQL Statement Reference](/sql-statements/sql-statement-backup.md) -- [IMPORT INTO | TiDB SQL Statement Reference](/sql-statements/sql-statement-import-into.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) ### tidb_enable_exchange_partition Referenced in: -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_extended_stats @@ -1423,9 +1431,9 @@ Referenced in: Referenced in: +- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) - [External Timestamp Read](/tidb-external-ts.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) -- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_fast_analyze @@ -1448,8 +1456,8 @@ Referenced in: Referenced in: -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_gc_aware_memory_track @@ -1462,9 +1470,9 @@ Referenced in: Referenced in: -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) ### tidb_enable_lazy_cursor_fetch @@ -1478,13 +1486,13 @@ Referenced in: Referenced in: -- [Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) +- [Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### tidb_enable_non_prepared_plan_cache_for_dml @@ -1498,12 +1506,12 @@ Referenced in: Referenced in: - [Information Functions](/functions-and-operators/information-functions.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [SELECT](/sql-statements/sql-statement-select.md) - [Pessimistic Transaction Model](/pessimistic-transaction.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [SELECT](/sql-statements/sql-statement-select.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_noop_variables @@ -1515,26 +1523,26 @@ Referenced in: Referenced in: -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_outer_join_reorder Referenced in: - [Join Reorder](/join-reorder.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_enable_parallel_apply Referenced in: +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) - [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) ### tidb_enable_pipelined_window_function @@ -1561,14 +1569,14 @@ Referenced in: Referenced in: +- [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [TiDB Dashboard FAQ](/dashboard/dashboard-faq.md) -- [TiDB Cloud Release Notes - 2022](/tidb-cloud/release-notes-2022.md) +- [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) ### tidb_enable_prepared_plan_cache_memory_monitor @@ -1581,15 +1589,15 @@ Referenced in: Referenced in: - [SQL FAQs](/faq/sql-faq.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) ### tidb_enable_rate_limit_action Referenced in: -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [Configure Memory Usage](/configure-memory-usage.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_reuse_chunk @@ -1603,31 +1611,31 @@ Referenced in: Referenced in: -- [TiDB Functions](/functions-and-operators/tidb-functions.md) - [Data Integrity Check](/ticdc/ticdc-integrity-check.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB Functions](/functions-and-operators/tidb-functions.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_enable_slow_log Referenced in: -- [TiDB Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) -- [Identify Slow Queries](/identify-slow-queries.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Dynamic Configuration](/dynamic-config.md) +- [Identify Slow Queries](/identify-slow-queries.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) ### tidb_enable_stmt_summary Referenced in: +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management](/sql-plan-management.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) ### tidb_enable_strict_double_type_check @@ -1640,44 +1648,44 @@ Referenced in: Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) -- [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) ### tidb_enable_telemetry Referenced in: -- [TiDB 6.1.5 Release Notes](/releases/release-6.1.5.md) -- [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) -- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) +- [TiDB 6.1.5 Release Notes](/releases/release-6.1.5.md) ### tidb_enable_tiflash_read_for_write_stmt Referenced in: - [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) -- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_top_sql Referenced in: -- [Top SQL](/dashboard/top-sql.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Top SQL](/dashboard/top-sql.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) ### tidb_enable_tso_follower_proxy Referenced in: -- [PD Microservices](/pd-microservices.md) - [Basic Features](/basic-features.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [PD Microservices](/pd-microservices.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -1685,29 +1693,29 @@ Referenced in: Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB 5.0.6 Release Notes](/releases/release-5.0.6.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) +- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) +- [TiDB 5.0.6 Release Notes](/releases/release-5.0.6.md) - [TiDB 4.0.16 Release Notes](/releases/release-4.0.16.md) -- [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) -- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) ### tidb_enforce_mpp Referenced in: +- [Explore HTAP](/explore-htap.md) +- [Stale Read](/stale-read.md) +- [TiDB Configuration File](/tidb-configuration-file.md) - [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) -- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [Troubleshoot TiFlash](/tiflash/troubleshoot-tiflash.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) -- [Stale Read](/stale-read.md) -- [Explore HTAP](/explore-htap.md) -- [TiDB Configuration File](/tidb-configuration-file.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) +- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) -- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) -- [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) ### tidb_executor_concurrency @@ -1722,31 +1730,31 @@ Referenced in: Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [Dynamic Configuration](/dynamic-config.md) - [Identify Slow Queries](/identify-expensive-queries.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) -- [Dynamic Configuration](/dynamic-config.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_external_ts Referenced in: +- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) - [External Timestamp Read](/tidb-external-ts.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) - [Stale Read](/stale-read.md) -- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_force_priority Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [SQL FAQs](/faq/sql-faq.md) - [Dynamic Configuration](/dynamic-config.md) -- [TiDB Configuration File](/tidb-configuration-file.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) +- [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) - [TiDB 2.1 RC3 Release Notes](/releases/release-2.1-rc.3.md) @@ -1754,65 +1762,65 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [GC Configuration](/garbage-collection-configuration.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_enable Referenced in: -- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [Migrate Data from TiDB to TiDB](/migrate-from-tidb-to-tidb.md) -- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) -- [Migrate Data from TiDB to MySQL](/migrate-from-tidb-to-mysql.md) -- [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) +- [GC Configuration](/garbage-collection-configuration.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Migrate Data from TiDB to MySQL](/migrate-from-tidb-to-mysql.md) +- [Migrate Data from TiDB to TiDB](/migrate-from-tidb-to-tidb.md) - [Migrate from Self-Hosted TiDB to TiDB Cloud](/tidb-cloud/migrate-from-op-tidb.md) -- [GC Configuration](/garbage-collection-configuration.md) +- [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) +- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_life_time Referenced in: -- [TiKV In-Memory Engine](/tikv-in-memory-engine.md) -- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [Error Codes and Troubleshooting](/error-codes.md) -- [Dumpling Overview](/dumpling-overview.md) - [Back up and Restore Incrementally](/br/br-incremental-guide.md) -- [Read Historical Data](/read-historical-data.md) -- [FLASHBACK TABLE | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-table.md) -- [FLASHBACK DATABASE | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-database.md) -- [FLASHBACK CLUSTER | TiDB SQL Statement Reference](/sql-statements/sql-statement-flashback-cluster.md) -- [SQL FAQs](/faq/sql-faq.md) +- [Create a Changefeed with MySQL as Downstream](/tidb-cloud/changefeed-sink-to-mysql.md) - [Create a Changefeed with TiDB Cloud as Downstream](/tidb-cloud/changefeed-sink-to-tidb-cloud.md) +- [Dumpling Overview](/dumpling-overview.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) +- [FLASHBACK DATABASE](/sql-statements/sql-statement-flashback-database.md) +- [FLASHBACK TABLE](/sql-statements/sql-statement-flashback-table.md) +- [GC Configuration](/garbage-collection-configuration.md) +- [Read Historical Data](/read-historical-data.md) - [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) +- [SQL FAQs](/faq/sql-faq.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) -- [Create a Changefeed with MySQL as Downstream](/tidb-cloud/changefeed-sink-to-mysql.md) -- [GC Configuration](/garbage-collection-configuration.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) -- [Use Stale Read](/develop/dev-guide-use-stale-read.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [TiKV In-Memory Engine](/tikv-in-memory-engine.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [Use Stale Read](/develop/dev-guide-use-stale-read.md) +- [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) +- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_run_interval Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [GC Configuration](/garbage-collection-configuration.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_scan_lock_mode Referenced in: -- [GC Overview](/garbage-collection-overview.md) - [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [GC Configuration](/garbage-collection-configuration.md) +- [GC Overview](/garbage-collection-overview.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1820,51 +1828,44 @@ Referenced in: Referenced in: -- [TiDB Data Migration FAQs](/dm/dm-faq.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - - ### tidb_hash_join_concurrency Referenced in: -- [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [Analyze Slow Queries](/analyze-slow-queries.md) - [Explain Joins](/explain-joins.md) -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) ### tidb_hashagg_final_concurrency Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) - [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) ### tidb_hashagg_partial_concurrency Referenced in: -- [SHOW VARIABLES | TiDB SQL Statement Reference](/sql-statements/sql-statement-show-variables.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) - [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) - ### require_secure_transport Referenced in: @@ -569,6 +626,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TLS Connections to TiDB Cloud Dedicated](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) @@ -577,6 +635,7 @@ Referenced in: - [Enable TLS Between Clients and Servers](/enable-tls-between-clients-and-servers.md) +- [System Variables](/system-variables.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) @@ -585,11 +644,11 @@ Referenced in: - +- [System Variables](/system-variables.md) ### socket @@ -597,6 +656,7 @@ Referenced in: - [Best Practices for Using HAProxy in TiDB](/best-practices/haproxy-best-practices.md) - [SHOW CONFIG](/sql-statements/sql-statement-show-config.md) +- [System Variables](/system-variables.md) ### sql_mode @@ -617,6 +677,7 @@ Referenced in: - [`SHOW WARNINGS`](/sql-statements/sql-statement-show-warnings.md) - [SQL FAQs](/faq/sql-faq.md) - [SQL Mode](/sql-mode.md) +- [System Variables](/system-variables.md) - [TiDB Lightning FAQ](/tidb-lightning/tidb-lightning-faq.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [User Account Management](/user-account-management.md) @@ -627,6 +688,7 @@ Referenced in: Referenced in: - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) +- [System Variables](/system-variables.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### sql_select_limit @@ -634,6 +696,7 @@ Referenced in: Referenced in: - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) ### ssl_ca @@ -656,24 +719,28 @@ Referenced in: - [Integrate Vector Search with LangChain](/vector-search-integrate-with-langchain.md) - [Integrate Vector Search with LlamaIndex](/vector-search-integrate-with-llamaindex.md) - [Integrate Vector Search with SQLAlchemy](/vector-search-integrate-with-sqlalchemy.md) +- [System Variables](/system-variables.md) ### ssl_cert Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) +- [System Variables](/system-variables.md) ### ssl_key Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) +- [System Variables](/system-variables.md) ### system_time_zone Referenced in: - [Configure Time Zone](/configure-time-zone.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) ### tidb_adaptive_closest_read_threshold @@ -681,6 +748,7 @@ Referenced in: Referenced in: - [Follower Read](/follower-read.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -688,6 +756,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tidb_allow_batch_cop @@ -695,6 +764,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -703,6 +773,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_allow_function_for_expression_index @@ -710,6 +781,7 @@ Referenced in: Referenced in: - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Features](/basic-features.md) @@ -719,6 +791,7 @@ Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) - [Explore HTAP](/explore-htap.md) +- [System Variables](/system-variables.md) - [TiDB TPC-H Performance Test Report -- v5.4](/benchmark/v5.4-performance-benchmarking-with-tpch.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) @@ -733,6 +806,7 @@ Referenced in: - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [MySQL Compatibility](/mysql-compatibility.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) @@ -741,6 +815,7 @@ Referenced in: Referenced in: - [How to Run CH-benCHmark Test on TiDB](/benchmark/benchmark-tidb-using-ch.md) +- [System Variables](/system-variables.md) - [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) - [TiDB Performance Tuning Configuration](/tidb-performance-tuning-config.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -749,6 +824,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -757,6 +833,7 @@ Referenced in: Referenced in: - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) @@ -770,6 +847,7 @@ Referenced in: - [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) - [SHOW ANALYZE STATUS](/sql-statements/sql-statement-show-analyze-status.md) - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -785,6 +863,7 @@ Referenced in: Referenced in: - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -794,6 +873,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -803,6 +883,7 @@ Referenced in: Referenced in: - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -810,6 +891,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) @@ -819,6 +901,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -827,6 +910,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_backoff_lock_fast @@ -834,6 +918,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) ### tidb_backoff_weight @@ -841,12 +926,14 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) ### tidb_batch_commit Referenced in: +- [System Variables](/system-variables.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -855,24 +942,27 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_batch_insert Referenced in: +- [System Variables](/system-variables.md) - [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) - +- [System Variables](/system-variables.md) ### tidb_broadcast_join_threshold_count Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) +- [System Variables](/system-variables.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -882,8 +972,9 @@ Referenced in: Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) -- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [System Variables](/system-variables.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_build_stats_concurrency @@ -892,6 +983,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) @@ -904,6 +996,7 @@ Referenced in: Referenced in: - [Statistics](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) ### tidb_capture_plan_baselines @@ -912,6 +1005,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) +- [System Variables](/system-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) @@ -920,6 +1014,7 @@ Referenced in: Referenced in: - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_check_mb4_value_in_utf8 @@ -929,6 +1024,7 @@ Referenced in: - [Character Sets and Collations](/character-set-and-collation.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) @@ -936,8 +1032,9 @@ Referenced in: Referenced in: -- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) ### tidb_committer_concurrency @@ -946,12 +1043,14 @@ Referenced in: - [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) @@ -960,8 +1059,9 @@ Referenced in: Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) @@ -975,6 +1075,7 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [Pessimistic Transaction Mode](/pessimistic-transaction.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Transaction Overview](/transaction-overview.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) @@ -987,6 +1088,7 @@ Referenced in: - [Modify Configuration Dynamically](/dynamic-config.md) - [Pessimistic Transaction Mode](/pessimistic-transaction.md) - [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -996,6 +1098,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB Cost Model](/cost-model.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -1009,6 +1112,7 @@ Referenced in: - [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) - [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [Timestamp Oracle (TSO) in TiDB](/tso.md) @@ -1019,6 +1123,7 @@ Referenced in: Referenced in: - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1032,6 +1137,7 @@ Referenced in: - [Hardware and Software Requirements](/hardware-and-software-requirements.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [TiDB Features](/basic-features.md) @@ -1051,6 +1157,7 @@ Referenced in: - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) ### tidb_ddl_flashback_concurrency @@ -1058,10 +1165,12 @@ Referenced in: Referenced in: - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_ddl_reorg_batch_size + Referenced in: @@ -1071,6 +1180,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Management Best Practices](/explain-walkthrough.md) +- [System Variables](/system-variables.md) - [TiDB DDL](/ddl-introduction.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) @@ -1082,6 +1192,7 @@ Referenced in: - [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) ### tidb_ddl_reorg_worker_cnt @@ -1096,6 +1207,7 @@ Referenced in: - [SQL Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) - [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Management Best Practices](/explain-walkthrough.md) +- [System Variables](/system-variables.md) - [TiDB Cloud Limited SQL Features](/tidb-cloud/limited-sql-features.md) - [TiDB DDL](/ddl-introduction.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) @@ -1111,28 +1223,31 @@ Referenced in: Referenced in: - [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) +- [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) ### tidb_enable_dist_task Referenced in: -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [Upgrade TiDB Using TiUP](/smooth-upgrade-tidb.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) -- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) - [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) -- [TiDB Global Sort](/tidb-global-sort.md) +- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [System Variables](/system-variables.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) +- [TiDB Global Sort](/tidb-global-sort.md) +- [Upgrade TiDB Using TiUP](/smooth-upgrade-tidb.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_cloud_storage_uri Referenced in: - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [System Variables](/system-variables.md) - [TiDB Global Sort](/tidb-global-sort.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -1141,6 +1256,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_disable_txn_auto_retry @@ -1149,6 +1265,7 @@ Referenced in: - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [TiDB TPC-C Performance Test Report -- v3.0 vs v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) - [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) @@ -1171,6 +1288,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) - [Statistics in TiDB](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) - [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) @@ -1186,6 +1304,7 @@ Referenced in: - [LOAD DATA](/sql-statements/sql-statement-load-data.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1199,6 +1318,7 @@ Referenced in: - [Configure Memory Usage](/configure-memory-usage.md) - [Identify Slow Queries](/identify-expensive-queries.md) - [IMPORT INTO vs TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1212,6 +1332,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Transaction Overview](/transaction-overview.md) - [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) @@ -1239,6 +1360,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Transaction Overview](/transaction-overview.md) - [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) @@ -1264,6 +1386,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_auto_analyze @@ -1274,6 +1397,7 @@ Referenced in: - [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Replayer User Guide](/sql-plan-replayer.md) - [Statistics in TiDB](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -1282,6 +1406,7 @@ Referenced in: Referenced in: - [Statistics in TiDB](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1294,12 +1419,14 @@ Referenced in: Referenced in: - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [System Variables](/system-variables.md) - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_enable_batch_dml Referenced in: +- [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) ### tidb_enable_cascades_planner @@ -1308,6 +1435,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_enable_check_constraint @@ -1317,6 +1445,7 @@ Referenced in: - [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) @@ -1326,67 +1455,11 @@ Referenced in: - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) -### tidb_enable_chunk_rpc - -Referenced in: - -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - -### tidb_enable_clustered_index - -Referenced in: - -- [Backup & Restore Overview](/br/backup-and-restore-overview.md) -- [Clustered Indexes](/clustered-indexes.md) -- [Create a Table](/develop/dev-guide-create-table.md) -- [Schema Design Overview](/develop/dev-guide-schema-design-overview.md) -- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB TPC-C Performance Test Report -- v6.1 vs. v6.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4 vs. v5.3](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3 vs. v5.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2 vs. v5.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1 vs. v5.0](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [TiDB 5.0.0 GA Release Notes](/releases/release-5.0.0.md) -- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) - -### tidb_enable_ddl - -Referenced in: - -- [Dynamic Configuration](/dynamic-config.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [Topology Reference](/tiup/tiup-cluster-topology-reference.md) - -### tidb_enable_collect_execution_info - -Referenced in: - -- [Dynamic Configuration](/dynamic-config.md) -- [Identify Slow Queries](/identify-slow-queries.md) -- [INFORMATION_SCHEMA TIDB_INDEX_USAGE Table](/information-schema/information-schema-tidb-index-usage.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) - ### tidb_enable_column_tracking Referenced in: +- [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -1399,6 +1472,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) @@ -1407,6 +1481,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1415,6 +1490,7 @@ Referenced in: Referenced in: - [Extended Statistics](/extended-statistics.md) +- [System Variables](/system-variables.md) ### tidb_enable_external_ts_read @@ -1423,6 +1499,7 @@ Referenced in: - [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) - [External Timestamp Read](/tidb-external-ts.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_fast_analyze @@ -1431,6 +1508,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [Extended Statistics](/extended-statistics.md) +- [System Variables](/system-variables.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -1439,12 +1517,14 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) ### tidb_enable_foreign_key Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1453,12 +1533,14 @@ Referenced in: Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_enable_global_index Referenced in: +- [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -1469,6 +1551,7 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_enable_non_prepared_plan_cache @@ -1477,6 +1560,7 @@ Referenced in: - [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) - [Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [System Variables](/system-variables.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -1488,6 +1572,7 @@ Referenced in: Referenced in: - [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) +- [System Variables](/system-variables.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_enable_noop_functions @@ -1498,6 +1583,7 @@ Referenced in: - [Pessimistic Transaction Model](/pessimistic-transaction.md) - [SELECT](/sql-statements/sql-statement-select.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1506,12 +1592,14 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_null_aware_anti_join Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1520,6 +1608,7 @@ Referenced in: Referenced in: - [Join Reorder](/join-reorder.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) @@ -1529,6 +1618,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) - [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) @@ -1538,6 +1628,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [Window Functions](/functions-and-operators/window-functions.md) ### tidb_enable_plan_replayer_capture @@ -1545,6 +1636,7 @@ Referenced in: Referenced in: - [SQL Plan Management](/sql-plan-replayer.md) +- [System Variables](/system-variables.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_enable_plan_replayer_continuous_capture @@ -1552,6 +1644,7 @@ Referenced in: Referenced in: - [SQL Plan Management](/sql-plan-replayer.md) +- [System Variables](/system-variables.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_prepared_plan_cache @@ -1560,6 +1653,7 @@ Referenced in: - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) - [TiDB Dashboard FAQ](/dashboard/dashboard-faq.md) - [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -1571,6 +1665,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_pseudo_for_outdated_stats @@ -1578,6 +1673,7 @@ Referenced in: Referenced in: - [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -1586,6 +1682,7 @@ Referenced in: Referenced in: - [Configure Memory Usage](/configure-memory-usage.md) +- [System Variables](/system-variables.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1593,6 +1690,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -1601,6 +1699,7 @@ Referenced in: Referenced in: - [Data Integrity Check](/ticdc/ticdc-integrity-check.md) +- [System Variables](/system-variables.md) - [TiDB Functions](/functions-and-operators/tidb-functions.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -1614,6 +1713,7 @@ Referenced in: - [Identify Slow Queries](/identify-slow-queries.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) @@ -1625,12 +1725,14 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management](/sql-plan-management.md) - [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) ### tidb_enable_strict_double_type_check Referenced in: +- [System Variables](/system-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_table_partition @@ -1638,6 +1740,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -1646,6 +1749,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) @@ -1655,6 +1759,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -1665,6 +1770,7 @@ Referenced in: Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [Top SQL](/dashboard/top-sql.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -1675,6 +1781,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [PD Microservices](/pd-microservices.md) +- [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) @@ -1683,6 +1790,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) - [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) @@ -1695,6 +1803,7 @@ Referenced in: - [Explore HTAP](/explore-htap.md) - [Stale Read](/stale-read.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) - [Troubleshoot TiFlash](/tiflash/troubleshoot-tiflash.md) @@ -1710,6 +1819,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) @@ -1723,6 +1833,7 @@ Referenced in: - [Identify Slow Queries](/identify-expensive-queries.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_external_ts @@ -1733,6 +1844,7 @@ Referenced in: - [External Timestamp Read](/tidb-external-ts.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) - [Stale Read](/stale-read.md) +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_force_priority @@ -1743,6 +1855,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) - [TiDB 2.1 RC3 Release Notes](/releases/release-2.1-rc.3.md) @@ -1753,6 +1866,7 @@ Referenced in: - [GC Configuration](/garbage-collection-configuration.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1767,6 +1881,7 @@ Referenced in: - [Migrate from Self-Hosted TiDB to TiDB Cloud](/tidb-cloud/migrate-from-op-tidb.md) - [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1786,6 +1901,7 @@ Referenced in: - [Read Historical Data](/read-historical-data.md) - [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) - [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiKV In-Memory Engine](/tikv-in-memory-engine.md) @@ -1800,6 +1916,7 @@ Referenced in: - [GC Configuration](/garbage-collection-configuration.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_scan_lock_mode @@ -1810,6 +1927,7 @@ Referenced in: - [GC Configuration](/garbage-collection-configuration.md) - [GC Overview](/garbage-collection-overview.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1819,6 +1937,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Data Migration FAQs](/dm/dm-faq.md) @@ -1831,6 +1950,7 @@ Referenced in: - [Analyze Slow Queries](/analyze-slow-queries.md) - [Explain Joins](/explain-joins.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -1839,6 +1959,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) - [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) - [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) @@ -1851,17 +1972,18 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) - [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) - [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) - +- [System Variables](/system-variables.md) ### tidb_ignore_prepared_cache_close_stmt @@ -1870,15 +1992,16 @@ Referenced in: - [Performance Tuning Best Practices](/performance-tuning-practices.md) - [Performance Tuning Methods](/performance-tuning-methods.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) - +- [System Variables](/system-variables.md) ### tidb_index_join_batch_size @@ -1886,12 +2009,14 @@ Referenced in: - [Explain Joins](/explain-joins.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_index_lookup_concurrency Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -1901,6 +2026,7 @@ Referenced in: - [Explain Joins](/explain-joins.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -1909,6 +2035,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) ### tidb_index_serial_scan_concurrency @@ -1917,20 +2044,22 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statistics in TiDB](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) - [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) ### tidb_init_chunk_size Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Transaction Isolation Levels](/transaction-isolation-levels.md) +- [System Variables](/system-variables.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [Transaction Isolation Levels](/transaction-isolation-levels.md) ### tidb_isolation_read_engines @@ -1938,26 +2067,28 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB v5.4 TPC-H Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpch.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) - [TiFlash Compatibility](/tiflash/tiflash-compatibility.md) - [TiUP Bench Reference](/tiup/tiup-bench.md) - [Use FastScan](/tiflash/use-fastscan.md) - [Use HTAP Cluster](/tidb-cloud/use-htap-cluster.md) - [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) -- [TiDB v5.4 TPC-H Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpch.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) - +- [System Variables](/system-variables.md) ### tidb_max_auto_analyze_time Referenced in: - [Statistics in TiDB](/statistics.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_max_chunk_size @@ -1965,6 +2096,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Transaction Isolation Levels](/transaction-isolation-levels.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -1979,26 +2111,27 @@ Referenced in: - [SQL FAQs](/faq/sql-faq.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) - +- [System Variables](/system-variables.md) ### tidb_mem_oom_action @@ -2006,7 +2139,8 @@ Referenced in: - [Configure Memory Usage](/configure-memory-usage.md) - [Non-transactional DML](/non-transactional-dml.md) -- [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [System Variables](/system-variables.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -2016,6 +2150,7 @@ Referenced in: Referenced in: - [Statistics in TiDB](/statistics.md) +- [System Variables](/system-variables.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) @@ -2023,17 +2158,18 @@ Referenced in: - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - +- [System Variables](/system-variables.md) ### tidb_mem_quota_binding_cache Referenced in: - [SQL Plan Management](/sql-plan-management.md) +- [System Variables](/system-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_mem_quota_indexlookupjoin @@ -2041,6 +2177,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_mem_quota_nestedloopapply @@ -2048,6 +2185,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_mem_quota_query @@ -2061,6 +2199,7 @@ Referenced in: - [Identify Slow Queries](/identify-expensive-queries.md) - [Non-transactional DML](/non-transactional-dml.md) - [Optimizer Hints](/optimizer-hints.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) @@ -2089,6 +2228,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_merge_join_concurrency @@ -2101,6 +2241,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) @@ -2112,6 +2253,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [Monitoring API](/metrics-schema.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_metric_query_step @@ -2120,6 +2262,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [Monitoring API](/metrics-schema.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_multi_statement_mode @@ -2127,6 +2270,7 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [Integrate TiDB Cloud with n8n](/tidb-cloud/integrate-tidbcloud-with-n8n.md) +- [System Variables](/system-variables.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.8 Release Notes](/releases/release-6.5.8.md) @@ -2140,6 +2284,7 @@ Referenced in: Referenced in: - [Non-transactional DML](/non-transactional-dml.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_opt_agg_push_down @@ -2147,6 +2292,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -2158,17 +2304,18 @@ Referenced in: - [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) - [TiDB 4.0 GA Release Notes](/releases/release-4.0-ga.md) - +- [System Variables](/system-variables.md) ### tidb_opt_concurrency_factor Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_correlation_exp_factor @@ -2176,6 +2323,7 @@ Referenced in: - [Extended Statistics](/extended-statistics.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) ### tidb_opt_correlation_threshold @@ -2184,12 +2332,14 @@ Referenced in: - [Extended Statistics](/extended-statistics.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_desc_factor Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_distinct_agg_push_down @@ -2197,6 +2347,7 @@ Referenced in: - [Agg Distinct Optimization](/agg-distinct-optimization.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) @@ -2206,6 +2357,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_opt_insubq_to_join_and_agg @@ -2215,6 +2367,7 @@ Referenced in: - [Optimizer Hints](/optimizer-hints.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Subquery Optimization](/subquery-optimization.md) +- [System Variables](/system-variables.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_opt_join_reorder_threshold @@ -2223,6 +2376,7 @@ Referenced in: - [Join Reorder](/join-reorder.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -2230,6 +2384,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) ### tidb_opt_memory_factor @@ -2237,6 +2392,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_network_factor @@ -2244,11 +2400,13 @@ Referenced in: - [Choose Indexes](/choose-index.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_objective Referenced in: +- [System Variables](/system-variables.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -2257,12 +2415,14 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_opt_range_max_size Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_opt_scan_factor @@ -2270,6 +2430,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_seek_factor @@ -2277,18 +2438,20 @@ Referenced in: - [Choose Indexes](/choose-index.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_opt_skew_distinct_agg Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - +- [System Variables](/system-variables.md) ### tidb_opt_write_row_id @@ -2296,6 +2459,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_optimizer_selectivity_level @@ -2303,6 +2467,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) ### tidb_partition_prune_mode @@ -2311,6 +2476,7 @@ Referenced in: - [MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [Partitioned Table](/partitioned-table.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) - [TiFlash Upgrade Guide](/tiflash-upgrade-guide.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) @@ -2323,6 +2489,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) ### tidb_prepared_plan_cache_memory_guard_ratio @@ -2330,12 +2497,14 @@ Referenced in: Referenced in: - [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_prepared_plan_cache_size Referenced in: +- [System Variables](/system-variables.md) - [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) - [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) - [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) @@ -2350,6 +2519,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -2359,6 +2529,7 @@ Referenced in: - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) @@ -2370,6 +2541,7 @@ Referenced in: - [Read Historical Data Using tidb_read_staleness](/tidb-read-staleness.md) - [Stale Read](/stale-read.md) +- [System Variables](/system-variables.md) - [Use Stale Read](/develop/dev-guide-use-stale-read.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -2383,6 +2555,7 @@ Referenced in: - [Follower Read](/follower-read.md) - [Optimizer Hints](/optimizer-hints.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Three Data Centers Deployment Solution with Local Read](/best-practices/three-dc-local-read.md) - [Use Follower Read to Ensure Strongly Consistent Reads](/develop/dev-guide-use-follower-read.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2399,6 +2572,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB Transaction Overview](/transaction-overview.md) @@ -2411,6 +2585,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) ### tidb_scatter_region @@ -2418,6 +2593,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_schema_cache_size @@ -2425,6 +2601,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_session_alias @@ -2432,6 +2609,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_skip_ascii_check @@ -2440,6 +2618,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_skip_isolation_level_check @@ -2450,6 +2629,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) - [Stale Read](/stale-read.md) +- [System Variables](/system-variables.md) - [Temporary Tables](/temporary-tables.md) - [Top SQL](/dashboard/top-sql.md) - [Transaction Isolation Levels](/transaction-isolation-levels.md) @@ -2466,6 +2646,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) @@ -2476,6 +2657,7 @@ Referenced in: - [Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -2485,6 +2667,7 @@ Referenced in: - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_snapshot @@ -2494,6 +2677,7 @@ Referenced in: - [Read Historical Data](/read-historical-data.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Stale Read](/stale-read.md) +- [System Variables](/system-variables.md) - [Use Stale Read](/develop/dev-guide-use-stale-read.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) @@ -2503,6 +2687,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_stmt_summary_internal_query @@ -2511,6 +2696,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_stmt_summary_max_sql_length @@ -2519,6 +2705,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_stmt_summary_max_stmt_count @@ -2527,6 +2714,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_stmt_summary_refresh_interval @@ -2535,6 +2723,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_store_limit @@ -2542,6 +2731,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -2550,6 +2740,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_tmp_table_max_size @@ -2557,6 +2748,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Temporary Tables](/temporary-tables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -2565,6 +2757,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Top SQL](/dashboard/top-sql.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -2573,6 +2766,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [Top SQL](/dashboard/top-sql.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -2581,6 +2775,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB Transaction Overview](/transaction-overview.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -2591,6 +2786,7 @@ Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management](/sql-plan-management.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) ### tidb_wait_split_region_finish @@ -2598,6 +2794,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_wait_split_region_timeout @@ -2605,6 +2802,7 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_window_concurrency @@ -2612,24 +2810,25 @@ Referenced in: Referenced in: - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - +- [System Variables](/system-variables.md) ### tiflash_fastscan @@ -2637,6 +2836,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) +- [System Variables](/system-variables.md) - [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [Use FastScan to Accelerate TiFlash Queries](/tiflash/use-fastscan.md) @@ -2651,12 +2851,14 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tiflash_fine_grained_shuffle_stream_count Referenced in: +- [System Variables](/system-variables.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -2664,6 +2866,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -2671,6 +2874,7 @@ Referenced in: Referenced in: +- [System Variables](/system-variables.md) - [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -2680,18 +2884,21 @@ Referenced in: - [Basic Features](/basic-features.md) - [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) +- [System Variables](/system-variables.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tiflash_hashagg_preaggregation_mode Referenced in: +- [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tikv_client_read_timeout Referenced in: +- [System Variables](/system-variables.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -2703,6 +2910,7 @@ Referenced in: - [Date and Time Types](/data-type-date-and-time.md) - [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) @@ -2717,6 +2925,7 @@ Referenced in: - [Log Redaction](/log-redaction.md) - [Partitioned Table](/partitioned-table.md) - [Point-in-Time Recovery](/br/br-pitr-manual.md) +- [System Variables](/system-variables.md) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [Time Service Overview](/tso.md) - [Time To Live (TTL)](/time-to-live.md) @@ -2726,6 +2935,7 @@ Referenced in: Referenced in: - [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) +- [System Variables](/system-variables.md) - [Third-Party Tool Compatibility](/develop/dev-guide-third-party-tools-compatibility.md) - [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) @@ -2734,6 +2944,7 @@ Referenced in: Referenced in: - [Performance Tuning Package](/performance-tuning-practices.md) +- [System Variables](/system-variables.md) ### txn_scope @@ -2741,6 +2952,7 @@ Referenced in: - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [Resource Control](/tidb-resource-control.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### validate_password.check_user_name @@ -2748,6 +2960,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2757,6 +2970,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2767,6 +2981,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2776,6 +2991,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2785,6 +3001,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2794,6 +3011,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2803,6 +3021,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2812,6 +3031,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2821,44 +3041,48 @@ Referenced in: - [Ecosystem Tool User Guide](/ecosystem-tool-user-guide.md) - [Foreign Key](/foreign-key.md) +- [System Variables](/system-variables.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [Upgrade Monitoring Services](/upgrade-monitoring-services.md) - +- [System Variables](/system-variables.md) ### wait_timeout Referenced in: -- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md): Discusses setting wait_timeout for Java applications -- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md): Details about wait_timeout configuration -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md): Notes read-only status in TiDB Cloud -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md): Lists wait_timeout as a supported timeout -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md): Explains wait_timeout usage -- [TiProxy Overview](/tiproxy/tiproxy-overview.md): Describes connection handling with wait_timeout -- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md): Mentions wait_timeout in context of lock wait timeouts -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md): Suggests adjusting wait_timeout for connection pools -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md): Added wait_timeout system variable -- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md): Added support for wait_timeout +- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [System Variables](/system-variables.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [TiProxy Overview](/tiproxy/tiproxy-overview.md) +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) +- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### warning_count Referenced in: +- [System Variables](/system-variables.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### windowing_use_high_precision Referenced in: +- [System Variables](/system-variables.md) - [Window Functions](/functions-and-operators/window-functions.md) From 49681ee2ae9810c359e19ec590d3c18a8fcf2d9a Mon Sep 17 00:00:00 2001 From: lilin90 Date: Tue, 7 Jan 2025 17:04:51 +0800 Subject: [PATCH 11/24] Update links to pass check --- system-variable-reference.md | 96 ++++++++++++++++++------------------ 1 file changed, 48 insertions(+), 48 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index e7a5ffd52d6ad..0cbe80e8471b8 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -625,7 +625,7 @@ Referenced in: -- [Limited SQL features on TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TLS Connections to TiDB Cloud Dedicated](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) @@ -714,11 +714,11 @@ Referenced in: - [Connect to TiDB with PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) - [Connect to TiDB with SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) - [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) -- [Get Started with TiDB + AI via Python](/vector-search-get-started-using-python.md) -- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search-integrate-with-jinaai-embedding.md) -- [Integrate Vector Search with LangChain](/vector-search-integrate-with-langchain.md) -- [Integrate Vector Search with LlamaIndex](/vector-search-integrate-with-llamaindex.md) -- [Integrate Vector Search with SQLAlchemy](/vector-search-integrate-with-sqlalchemy.md) +- [Get Started with TiDB + AI via Python](/vector-search/vector-search-get-started-using-python.md) +- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search/vector-search-integrate-with-jinaai-embedding.md) +- [Integrate Vector Search with LangChain](/vector-search/vector-search-integrate-with-langchain.md) +- [Integrate Vector Search with LlamaIndex](/vector-search/vector-search-integrate-with-llamaindex.md) +- [Integrate Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) - [System Variables](/system-variables.md) ### ssl_cert @@ -1208,7 +1208,7 @@ Referenced in: - [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Management Best Practices](/explain-walkthrough.md) - [System Variables](/system-variables.md) -- [TiDB Cloud Limited SQL Features](/tidb-cloud/limited-sql-features.md) +- [TiDB Cloud Limited SQL Features](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB DDL](/ddl-introduction.md) - [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - [Troubleshoot CPU Issues](/troubleshoot-cpu-issues.md) @@ -1290,8 +1290,8 @@ Referenced in: - [Statistics in TiDB](/statistics.md) - [System Variables](/system-variables.md) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v6.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud v7.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) - [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) - [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -1331,7 +1331,7 @@ Referenced in: Referenced in: - [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Transaction Overview](/transaction-overview.md) @@ -1359,7 +1359,7 @@ Referenced in: Referenced in: - [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Transaction Overview](/transaction-overview.md) @@ -1393,7 +1393,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Replayer User Guide](/sql-plan-replayer.md) - [Statistics in TiDB](/statistics.md) @@ -1444,7 +1444,7 @@ Referenced in: - [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) @@ -1471,7 +1471,7 @@ Referenced in: - [BACKUP](/sql-statements/sql-statement-backup.md) - [Basic Features](/basic-features.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) @@ -1532,7 +1532,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -1711,7 +1711,7 @@ Referenced in: - [Dynamic Configuration](/dynamic-config.md) - [Identify Slow Queries](/identify-slow-queries.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -1721,7 +1721,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management](/sql-plan-management.md) - [Statement Summary Tables](/statement-summary-tables.md) @@ -1769,7 +1769,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [Top SQL](/dashboard/top-sql.md) - [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) @@ -1779,7 +1779,7 @@ Referenced in: Referenced in: - [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [PD Microservices](/pd-microservices.md) - [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) @@ -1831,7 +1831,7 @@ Referenced in: - [Dynamic Configuration](/dynamic-config.md) - [Identify Slow Queries](/identify-expensive-queries.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -1852,7 +1852,7 @@ Referenced in: Referenced in: - [Dynamic Configuration](/dynamic-config.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) @@ -1865,7 +1865,7 @@ Referenced in: Referenced in: - [GC Configuration](/garbage-collection-configuration.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1875,10 +1875,10 @@ Referenced in: Referenced in: - [GC Configuration](/garbage-collection-configuration.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Migrate Data from TiDB to MySQL](/migrate-from-tidb-to-mysql.md) - [Migrate Data from TiDB to TiDB](/migrate-from-tidb-to-tidb.md) -- [Migrate from Self-Hosted TiDB to TiDB Cloud](/tidb-cloud/migrate-from-op-tidb.md) +- [Migrate from Self-Hosted TiDB to TiDB Cloud](https://docs.pingcap.com/tidbcloud/migrate-from-op-tidb) - [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) - [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) - [System Variables](/system-variables.md) @@ -1890,8 +1890,8 @@ Referenced in: Referenced in: - [Back up and Restore Incrementally](/br/br-incremental-guide.md) -- [Create a Changefeed with MySQL as Downstream](/tidb-cloud/changefeed-sink-to-mysql.md) -- [Create a Changefeed with TiDB Cloud as Downstream](/tidb-cloud/changefeed-sink-to-tidb-cloud.md) +- [Create a Changefeed with MySQL as Downstream](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-mysql) +- [Create a Changefeed with TiDB Cloud as Downstream](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-tidb-cloud) - [Dumpling Overview](/dumpling-overview.md) - [Error Codes and Troubleshooting](/error-codes.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) @@ -1915,7 +1915,7 @@ Referenced in: Referenced in: - [GC Configuration](/garbage-collection-configuration.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1926,7 +1926,7 @@ Referenced in: - [Basic Features](/basic-features.md) - [GC Configuration](/garbage-collection-configuration.md) - [GC Overview](/garbage-collection-overview.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) @@ -1935,7 +1935,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) @@ -2046,10 +2046,10 @@ Referenced in: - [Statistics in TiDB](/statistics.md) - [System Variables](/system-variables.md) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [TiDB Cloud v6.5 TPC-C Performance Test Report](/tidb-cloud/v6.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.1 TPC-C Performance Test Report](/tidb-cloud/v7.1-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v6.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud v7.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) +- [TiDB Cloud v7.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud v8.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) ### tidb_init_chunk_size @@ -2065,7 +2065,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) @@ -2074,7 +2074,7 @@ Referenced in: - [TiFlash Compatibility](/tiflash/tiflash-compatibility.md) - [TiUP Bench Reference](/tiup/tiup-bench.md) - [Use FastScan](/tiflash/use-fastscan.md) -- [Use HTAP Cluster](/tidb-cloud/use-htap-cluster.md) +- [Use HTAP Cluster](https://docs.pingcap.com/tidbcloud/use-htap-cluster) - [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) ### tidb_last_txn_info @@ -2250,7 +2250,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Monitoring API](/metrics-schema.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) @@ -2259,7 +2259,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Monitoring API](/metrics-schema.md) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) @@ -2269,7 +2269,7 @@ Referenced in: Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) -- [Integrate TiDB Cloud with n8n](/tidb-cloud/integrate-tidbcloud-with-n8n.md) +- [Integrate TiDB Cloud with n8n](https://docs.pingcap.com/tidbcloud/integrate-tidbcloud-with-n8n) - [System Variables](/system-variables.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) @@ -2457,7 +2457,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) @@ -2487,7 +2487,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) @@ -2950,7 +2950,7 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Resource Control](/tidb-resource-control.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -2979,7 +2979,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) @@ -2990,7 +2990,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3000,7 +3000,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3010,7 +3010,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3020,7 +3020,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3030,7 +3030,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3063,7 +3063,7 @@ Referenced in: - [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Limited SQL Features in TiDB Cloud](/tidb-cloud/limited-sql-features.md) +- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) From cf821c5032362dd3f03019bd0f4fd1ed291261a5 Mon Sep 17 00:00:00 2001 From: lilin90 Date: Tue, 7 Jan 2025 17:16:45 +0800 Subject: [PATCH 12/24] Update two extra links --- system-variable-reference.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 0cbe80e8471b8..2d00681b10eec 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -1292,8 +1292,8 @@ Referenced in: - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud v6.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud v7.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) -- [TiDB Cloud v7.5 TPC-C Performance Test Report](/tidb-cloud/v7.5-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud v8.1 TPC-C Performance Test Report](/tidb-cloud/v8.1-performance-benchmarking-with-tpcc.md) +- [TiDB Cloud v7.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud v8.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) - [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) From 8138d483d0e9c109ef5637d1370a8bf3885acd5f Mon Sep 17 00:00:00 2001 From: qiancai Date: Tue, 7 Jan 2025 18:27:36 +0800 Subject: [PATCH 13/24] add more variables and references --- system-variable-reference.md | 3322 ++++++++++++++++++++++++---------- 1 file changed, 2328 insertions(+), 994 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 2d00681b10eec..07a72643a84ff 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -14,15 +14,93 @@ This document lists all TiDB system variables and the files that reference them ## Variable reference +### `tidb_enable_fast_create_table` + +Referenced in: + +- [TiDB Accelerated Table Creation](/accelerated-table-creation.md) +- [System Variables](/system-variables.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### `tidb_enable_inl_join_inner_multi_pattern` + +Referenced in: + +- [Optimizer Hints](/optimizer-hints.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### `tidb_enable_row_level_checksum` + +Referenced in: + +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) +- [System Variables](/system-variables.md) +- [TiCDC Data Integrity Validation for Single-Row Data](/ticdc/ticdc-integrity-check.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### `tidb_load_binding_timeout` + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### `tidb_lock_unchanged_keys` + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) + +### `tidb_low_resolution_tso_update_interval` + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### `tidb_opt_derive_topn` + +Referenced in: + +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### `tidb_plan_cache_invalidation_on_fresh_stats` + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### `tidb_plan_cache_max_plan_size` + +Referenced in: + +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + ### allow_auto_random_explicit_insert Referenced in: -- [AUTO_RANDOM](/auto-random.md) +- [AUTO_RANDOM New in v3.1.0](/auto-random.md) - [Insert Data](/develop/dev-guide-insert-data.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [System Variables](/system-variables.md) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) ### authentication_ldap_sasl_auth_method_name @@ -170,10 +248,12 @@ Referenced in: Referenced in: - [AUTO_INCREMENT](/auto-increment.md) -- [AUTO_RANDOM](/auto-random.md) -- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) +- [AUTO_RANDOM New in v3.1.0](/auto-random.md) - [Error Codes and Troubleshooting](/error-codes.md) +- [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [System Variables](/system-variables.md) +- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) @@ -183,10 +263,12 @@ Referenced in: Referenced in: - [AUTO_INCREMENT](/auto-increment.md) -- [AUTO_RANDOM](/auto-random.md) -- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) +- [AUTO_RANDOM New in v3.1.0](/auto-random.md) - [Error Codes and Troubleshooting](/error-codes.md) +- [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [System Variables](/system-variables.md) +- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) @@ -195,15 +277,8 @@ Referenced in: Referenced in: -- [Connect to TiDB with Hibernate](/develop/dev-guide-sample-application-java-hibernate.md) -- [Connect to TiDB with MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) - [Non-Transactional DML Statements](/non-transactional-dml.md) -- [Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [System Variables](/system-variables.md) -- [Temporary Tables](/temporary-tables.md) -- [Transaction Overview](/transaction-overview.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) -- [TiDB 6.5.3 Release Notes](/releases/release-6.5.3.md) +- [Transactions](/transaction-overview.md) ### block_encryption_mode @@ -216,22 +291,22 @@ Referenced in: Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) -- [Dumpling Overview](/dumpling-overview.md) -- [GBK Character Set](/character-set-gbk.md) +- [Character Set and Collation](/character-set-and-collation.md) +- [GBK](/character-set-gbk.md) +- [Views](/develop/dev-guide-use-views.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) +- [VIEWS](/information-schema/information-schema-views.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) -- [Use Views](/develop/dev-guide-use-views.md) - [Views](/views.md) -- [`VIEWS` INFORMATION_SCHEMA Table](/information-schema/information-schema-views.md) ### character_set_connection Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) -- [Dumpling Overview](/dumpling-overview.md) -- [GBK Character Set](/character-set-gbk.md) +- [Character Set and Collation](/character-set-and-collation.md) +- [GBK](/character-set-gbk.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) @@ -239,7 +314,7 @@ Referenced in: Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) @@ -247,7 +322,7 @@ Referenced in: Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -257,37 +332,37 @@ Referenced in: Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### collation_connection Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) +- [Views](/develop/dev-guide-use-views.md) - [String Functions](/functions-and-operators/string-functions.md) +- [VIEWS](/information-schema/information-schema-views.md) - [System Variables](/system-variables.md) -- [Use Views](/develop/dev-guide-use-views.md) - [Views](/views.md) -- [`VIEWS` INFORMATION_SCHEMA Table](/information-schema/information-schema-views.md) ### collation_database Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) - [System Variables](/system-variables.md) ### collation_server Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) - [System Variables](/system-variables.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) ### cte_max_recursion_depth @@ -296,14 +371,7 @@ Referenced in: - [Highly Concurrent Write Best Practices](/best-practices/high-concurrency-best-practices.md) - [System Variables](/system-variables.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) - -### datadir - -Referenced in: - -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) ### ddl_slow_threshold @@ -316,27 +384,28 @@ Referenced in: Referenced in: +- [TiDB Features](/basic-features.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) -- [TiDB Features](/basic-features.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) ### default_collation_for_utf8mb4 Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) +- [Character Set and Collation](/character-set-and-collation.md) - [System Variables](/system-variables.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### default_password_lifetime Referenced in: -- [Password Management](/password-management.md) +- [TiDB Password Management](/password-management.md) - [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -368,7 +437,15 @@ Referenced in: Referenced in: +- [SQL FAQs](/faq/sql-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiCDC Alert Rules](/ticdc/ticdc-alert-rules.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [TiDB 3.1 Beta.1 Release Notes](/releases/release-3.1.0-beta.1.md) +- [TiDB 3.0.0 Beta.1 Release Notes](/releases/release-3.0.0-beta.1.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### foreign_key_checks @@ -401,31 +478,13 @@ Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) - [System Variables](/system-variables.md) -### hostname - -Referenced in: - -- [Best Practices for Using HAProxy in TiDB](/best-practices/haproxy-best-practices.md) -- [System Variables](/system-variables.md) -- [The `mysql.user` Table](/mysql-schema/mysql-schema-user.md) - -### identity - -Referenced in: - -- [Configure SSO for TiDB Dashboard](/dashboard/dashboard-session-sso.md) -- [Enable TLS Between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) -- [Password Management](/password-management.md) -- [Secure TiDB Dashboard](/dashboard/dashboard-ops-security.md) -- [System Variables](/system-variables.md) - ### init_connect Referenced in: - [System Variables](/system-variables.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md) @@ -433,7 +492,7 @@ Referenced in: Referenced in: -- [Pessimistic Transaction Model](/pessimistic-transaction.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [System Variables](/system-variables.md) - [TiKV Configuration File](/tikv-configuration-file.md) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) @@ -443,24 +502,25 @@ Referenced in: Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) ### last_insert_id Referenced in: -- [AUTO_RANDOM](/auto-random.md) +- [AUTO_RANDOM New in v3.1.0](/auto-random.md) - [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) - [Information Functions](/functions-and-operators/information-functions.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) - [System Variables](/system-variables.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) -- [TiDB 3.1.0-rc Release Notes](/releases/release-3.1.0-rc.md) +- [TiDB 3.1 RC Release Notes](/releases/release-3.1.0-rc.md) - [TiDB 2.1.17 Release Notes](/releases/release-2.1.17.md) - [TiDB 2.1 RC2 Release Notes](/releases/release-2.1-rc.2.md) @@ -489,23 +549,16 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### license - -Referenced in: - -- [System Variables](/system-variables.md) -- [TiDB Data Migration Overview](/dm/dm-overview.md) - ### max_allowed_packet Referenced in: -- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Data Migration FAQs](/dm/dm-faq.md) +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) @@ -520,9 +573,9 @@ Referenced in: - [Integrate TiDB with ProxySQL](/develop/dev-guide-proxysql-integration.md) - [Modify Configuration Dynamically](/dynamic-config.md) -- [Precheck Errors, Migration Errors, and Alerts for Data Migration](https://docs.pingcap.com/tidbcloud/tidb-cloud-dm-precheck-and-troubleshooting) -- [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [System Variables](/system-variables.md) +- [Precheck Errors, Migration Errors, and Alerts for Data Migration](https://docs.pingcap.com/tidbcloud/tidb-cloud-dm-precheck-and-troubleshooting) - [TiDB Configuration File](/tidb-configuration-file.md) ### max_execution_time @@ -531,12 +584,12 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Optimizer Hints](/optimizer-hints.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [SQL FAQs](/faq/sql-faq.md) +- [Optimizer Hints](/optimizer-hints.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) @@ -546,7 +599,7 @@ Referenced in: Referenced in: -- [The `PREPARE` SQL Statement](/sql-statements/sql-statement-prepare.md) +- [PREPARE](/sql-statements/sql-statement-prepare.md) - [System Variables](/system-variables.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) @@ -571,17 +624,17 @@ Referenced in: Referenced in: -- [Password Management](/password-management.md) -- [System Variables](/system-variables.md) -- [The `mysql` Schema](/mysql-schema/mysql-schema.md) +- [`mysql` Schema](/mysql-schema/mysql-schema.md) +- [TiDB Password Management](/password-management.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### password_reuse_interval Referenced in: -- [Password Management](/password-management.md) +- [TiDB Password Management](/password-management.md) - [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -589,9 +642,10 @@ Referenced in: Referenced in: +- [TiDB Features](/basic-features.md) - [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [Tune Region Performance](/tune-region-performance.md) -- [TiDB Features](/basic-features.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -599,89 +653,92 @@ Referenced in: Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### plugin_load Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### port +### rand_seed1 Referenced in: -- [Migrate Data from SQL Files to TiDB](/migrate-from-sql-files-to-tidb.md) - [System Variables](/system-variables.md) -- [TiFlash Deployment Topology](/tiflash-deployment-topology.md) -- [TSO Configuration File](/tso-configuration-file.md) -### require_secure_transport +### rand_seed2 Referenced in: - - -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) -- [TLS Connections to TiDB Cloud Dedicated](/tidb-cloud/tidb-cloud-tls-connect-to-dedicated.md) - +### require_secure_transport - +Referenced in: -- [Enable TLS Between Clients and Servers](/enable-tls-between-clients-and-servers.md) +- [Enable TLS between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TLS Connections to TiDB Cloud Dedicated](https://docs.pingcap.com/tidbcloud/tidb-cloud-tls-connect-to-dedicated) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) - [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - - ### skip_name_resolve Referenced in: - [System Variables](/system-variables.md) - -### socket - -Referenced in: - -- [Best Practices for Using HAProxy in TiDB](/best-practices/haproxy-best-practices.md) -- [SHOW CONFIG](/sql-statements/sql-statement-show-config.md) -- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### sql_mode Referenced in: -- [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) - [Date and Time Types](/data-type-date-and-time.md) +- [Unstable Result Set](/develop/dev-guide-unstable-result-set.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [Handle Unstable Result Set Errors](/develop/dev-guide-unstable-result-set.md) -- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) - [Miscellaneous Functions](/functions-and-operators/miscellaneous-functions.md) -- [Partitioning](/partitioned-table.md) - [Precision Math](/functions-and-operators/precision-math.md) +- [Partitioning](/partitioned-table.md) - [Privilege Management](/privilege-management.md) - [Schema Object Names](/schema-object-names.md) -- [`SET [GLOBAL|SESSION] `](/sql-statements/sql-statement-set-variable.md) -- [`SHOW ERRORS`](/sql-statements/sql-statement-show-errors.md) -- [`SHOW WARNINGS`](/sql-statements/sql-statement-show-warnings.md) -- [SQL FAQs](/faq/sql-faq.md) - [SQL Mode](/sql-mode.md) +- [`SET [GLOBAL|SESSION] `](/sql-statements/sql-statement-set-variable.md) +- [SHOW ERRORS](/sql-statements/sql-statement-show-errors.md) +- [SHOW WARNINGS](/sql-statements/sql-statement-show-warnings.md) - [System Variables](/system-variables.md) -- [TiDB Lightning FAQ](/tidb-lightning/tidb-lightning-faq.md) +- [TiDB Lightning FAQs](/tidb-lightning/tidb-lightning-faq.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) -- [User Account Management](/user-account-management.md) - [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) +- [TiDB User Account Management](/user-account-management.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) +- [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) +- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.5 Release Notes](/releases/release-7.1.5.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) +- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) +- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) +- [TiDB 4.0.16 Release Notes](/releases/release-4.0.16.md) +- [TiDB RC2 Release Notes](/releases/release-rc.2.md) ### sql_require_primary_key @@ -704,28 +761,30 @@ Referenced in: Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) +- [Connect to TiDB with node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md) +- [Connect to TiDB with mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md) +- [Connect to TiDB with Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) +- [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) - [Connect to TiDB with Django](/develop/dev-guide-sample-application-python-django.md) - [Connect to TiDB with MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) -- [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) -- [Connect to TiDB with mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md) -- [Connect to TiDB with node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md) - [Connect to TiDB with peewee](/develop/dev-guide-sample-application-python-peewee.md) -- [Connect to TiDB with Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) - [Connect to TiDB with PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) - [Connect to TiDB with SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) -- [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) -- [Get Started with TiDB + AI via Python](/vector-search/vector-search-get-started-using-python.md) -- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search/vector-search-integrate-with-jinaai-embedding.md) -- [Integrate Vector Search with LangChain](/vector-search/vector-search-integrate-with-langchain.md) -- [Integrate Vector Search with LlamaIndex](/vector-search/vector-search-integrate-with-llamaindex.md) -- [Integrate Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) +- [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) +- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) +- [Get Started with TiDB + AI via Python](/vector-search-get-started-using-python.md) +- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search-integrate-with-jinaai-embedding.md) +- [Integrate Vector Search with LangChain](/vector-search-integrate-with-langchain.md) +- [Integrate Vector Search with LlamaIndex](/vector-search-integrate-with-llamaindex.md) +- [Integrate TiDB Vector Search with SQLAlchemy](/vector-search-integrate-with-sqlalchemy.md) ### ssl_cert Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) +- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) ### ssl_key @@ -733,13 +792,14 @@ Referenced in: Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) +- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) ### system_time_zone Referenced in: -- [Configure Time Zone](/configure-time-zone.md) +- [Time Zone Support](/configure-time-zone.md) - [System Variables](/system-variables.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -752,47 +812,40 @@ Referenced in: - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -### tidb_allow_tiflash_cop - -Referenced in: - -- [System Variables](/system-variables.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - ### tidb_allow_batch_cop Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) - [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [TiDB 4.0 RC.2 Release Notes](/releases/release-4.0.0-rc.2.md) ### tidb_allow_fallback_to_tikv Referenced in: - [System Variables](/system-variables.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_allow_function_for_expression_index Referenced in: +- [TiDB Features](/basic-features.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Features](/basic-features.md) ### tidb_allow_mpp Referenced in: +- [TiDB TPC-H Performance Test Report -- TiDB v5.4 MPP mode vs. Greenplum 6.15.0 and Apache Spark 3.1.1](/benchmark/v5.4-performance-benchmarking-with-tpch.md) - [Explain Statements in the MPP Mode](/explain-mpp.md) - [Explore HTAP](/explore-htap.md) - [System Variables](/system-variables.md) -- [TiDB TPC-H Performance Test Report -- v5.4](/benchmark/v5.4-performance-benchmarking-with-tpch.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -802,22 +855,29 @@ Referenced in: Referenced in: -- [Auto-increment](/auto-increment.md) +- [AUTO_INCREMENT](/auto-increment.md) - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [MySQL Compatibility](/mysql-compatibility.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) +### tidb_allow_tiflash_cop + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + ### tidb_analyze_column_options Referenced in: - [How to Run CH-benCHmark Test on TiDB](/benchmark/benchmark-tidb-using-ch.md) - [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) -- [TiDB Performance Tuning Configuration](/tidb-performance-tuning-config.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_analyze_distsql_scan_concurrency @@ -832,7 +892,7 @@ Referenced in: Referenced in: -- [Statistics](/statistics.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) @@ -840,49 +900,57 @@ Referenced in: - [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +### tidb_analyze_skip_column_types + +Referenced in: + +- [Introduction to Statistics](/statistics.md) +- [System Variables](/system-variables.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + ### tidb_analyze_version Referenced in: +- [TiDB Memory Control](/configure-memory-usage.md) - [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) - [SHOW ANALYZE STATUS](/sql-statements/sql-statement-show-analyze-status.md) -- [Statistics](/statistics.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) -### tidb_analyze_skip_column_types +### tidb_auto_analyze_concurrency Referenced in: -- [Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_auto_analyze_end_time Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### tidb_auto_analyze_partition_batch_size Referenced in: -- [Statistics](/statistics.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -891,20 +959,27 @@ Referenced in: Referenced in: +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) +- [SQL FAQs](/faq/sql-faq.md) +- [SHOW STATS_HEALTHY](/sql-statements/sql-statement-show-stats-healthy.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) -- [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 2.0.1 Release Notes](/releases/release-2.0.1.md) ### tidb_auto_analyze_start_time Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### tidb_auto_build_stats_concurrency @@ -917,15 +992,15 @@ Referenced in: Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_backoff_weight Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) @@ -933,15 +1008,16 @@ Referenced in: Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) ### tidb_batch_delete Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) ### tidb_batch_insert @@ -977,91 +1053,91 @@ Referenced in: - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -### tidb_build_stats_concurrency +### tidb_build_sampling_stats_concurrency Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statistics](/statistics.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.5-performance-benchmarking-with-tpcc) -- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) -- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) -- [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) -- [TiDB TPC-H Performance Test Report — v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -### tidb_build_sampling_stats_concurrency +### tidb_build_stats_concurrency Referenced in: -- [Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Introduction to Statistics](/statistics.md) +- [System Variables](/system-variables.md) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) ### tidb_capture_plan_baselines Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 4.0 RC.1 Release Notes](/releases/release-4.0.0-rc.1.md) ### tidb_cdc_write_source Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_check_mb4_value_in_utf8 Referenced in: -- [Character Sets and Collations](/character-set-and-collation.md) -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Character Set and Collation](/character-set-and-collation.md) +- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) -- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) ### tidb_checksum_table_concurrency Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) -### tidb_committer_concurrency +### tidb_cloud_storage_uri Referenced in: - - -- [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [System Variables](/system-variables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB Global Sort](/tidb-global-sort.md) +- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - +### tidb_committer_concurrency - +Referenced in: +- [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - - +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_config Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) @@ -1069,14 +1145,20 @@ Referenced in: Referenced in: -- [COMMIT](/sql-statements/sql-statement-commit.md) - [Constraints](/constraints.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) +- [Modify Configuration Dynamically](/dynamic-config.md) - [Error Codes and Troubleshooting](/error-codes.md) -- [Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [COMMIT](/sql-statements/sql-statement-commit.md) +- [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Transaction Overview](/transaction-overview.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Transactions](/transaction-overview.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) ### tidb_constraint_check_in_place_pessimistic @@ -1084,9 +1166,9 @@ Referenced in: Referenced in: - [Constraints](/constraints.md) -- [Error Codes and Troubleshooting](/error-codes.md) - [Modify Configuration Dynamically](/dynamic-config.md) -- [Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -1098,8 +1180,8 @@ Referenced in: Referenced in: +- [Cost Model](/cost-model.md) - [System Variables](/system-variables.md) -- [TiDB Cost Model](/cost-model.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -1107,23 +1189,23 @@ Referenced in: Referenced in: -- [Disaster Recovery Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) +- [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) -- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) -- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) -- [Timestamp Oracle (TSO) in TiDB](/tso.md) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) +- [TimeStamp Oracle (TSO) in TiDB](/tso.md) ### tidb_ddl_disk_quota Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1131,19 +1213,20 @@ Referenced in: Referenced in: -- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) -- [Check Environment Before Deployment](/check-before-deployment.md) +- [TiDB Features](/basic-features.md) +- [TiDB Environment and System Configuration Check](/check-before-deployment.md) +- [TiDB Software and Hardware Requirements](/hardware-and-software-requirements.md) +- [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [Hardware and Software Requirements](/hardware-and-software-requirements.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) -- [TiDB Features](/basic-features.md) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -1154,67 +1237,40 @@ Referenced in: Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) ### tidb_ddl_flashback_concurrency Referenced in: -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_ddl_reorg_batch_size - -Referenced in: - -- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) -- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [SQL FAQs](/faq/sql-faq.md) -- [SQL Plan Management Best Practices](/explain-walkthrough.md) -- [System Variables](/system-variables.md) -- [TiDB DDL](/ddl-introduction.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - -### tidb_ddl_reorg_priority - Referenced in: -- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [Limited SQL Features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Interaction Test on Online Workloads and `ADD INDEX` Operations](/benchmark/online-workloads-and-add-index-operations.md) +- [Execution Principles and Best Practices of DDL Statements](/ddl-introduction.md) +- [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) - -### tidb_ddl_reorg_worker_cnt - -Referenced in: - -- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) -- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) +- [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [Online Workloads and ADD INDEX Operations](/benchmark/online-workloads-and-add-index-operations.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [SQL Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) -- [SQL FAQs](/faq/sql-faq.md) -- [SQL Plan Management Best Practices](/explain-walkthrough.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Cloud Limited SQL Features](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [TiDB DDL](/ddl-introduction.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) -- [Troubleshoot CPU Issues](/troubleshoot-cpu-issues.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) - [TiDB 2.1.4 Release Notes](/releases/release-2.1.4.md) @@ -1222,35 +1278,47 @@ Referenced in: Referenced in: -- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) -### tidb_enable_dist_task +### tidb_ddl_reorg_priority Referenced in: -- [ADMIN ALTER DDL](/sql-statements/sql-statement-admin-alter-ddl.md) -- [ADMIN SHOW DDL](/sql-statements/sql-statement-admin-show-ddl.md) -- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [SQL FAQs](/faq/sql-faq.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Distributed Execution Framework](/tidb-distributed-execution-framework.md) -- [TiDB Global Sort](/tidb-global-sort.md) -- [Upgrade TiDB Using TiUP](/smooth-upgrade-tidb.md) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) +- [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) -### tidb_cloud_storage_uri +### tidb_ddl_reorg_worker_cnt Referenced in: -- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [Interaction Test on Online Workloads and `ADD INDEX` Operations](/benchmark/online-workloads-and-add-index-operations.md) +- [Execution Principles and Best Practices of DDL Statements](/ddl-introduction.md) +- [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) +- [SQL FAQs](/faq/sql-faq.md) +- [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Global Sort](/tidb-global-sort.md) -- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) -- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) +- [TiDB 2.1.4 Release Notes](/releases/release-2.1.4.md) ### tidb_default_string_match_selectivity @@ -1263,39 +1331,40 @@ Referenced in: Referenced in: +- [TiDB Sysbench Performance Test Report -- v4.0 vs. v3.0](/benchmark/benchmark-sysbench-v4-vs-v3.md) - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [TiDB Sysbench Performance Test Report -- v3.0 vs. v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) -- [TiDB TPC-C Performance Test Report -- v3.0 vs v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) -- [TiDB Transaction Overview](/transaction-overview.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Transactions](/transaction-overview.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 3.0.0-rc.2 Release Notes](/releases/release-3.0.0-rc.2.md) -- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) - [TiDB 2.0.5 Release Notes](/releases/release-2.0.5.md) ### tidb_distsql_scan_concurrency Referenced in: -- [Configure Memory Usage](/configure-memory-usage.md) -- [Dumpling Overview](/dumpling-overview.md) -- [INFORMATION_SCHEMA SLOW_QUERY Table](/information-schema/information-schema-slow-query.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [TiDB Memory Control](/configure-memory-usage.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) - [SQL FAQs](/faq/sql-faq.md) -- [Statistics in TiDB](/statistics.md) +- [SLOW_QUERY](/information-schema/information-schema-slow-query.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [TiDB Cloud v6.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) -- [TiDB Cloud v7.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) -- [TiDB Cloud v7.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) -- [TiDB Cloud v8.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_dml_batch_size @@ -1303,24 +1372,24 @@ Referenced in: Referenced in: - [LOAD DATA](/sql-statements/sql-statement-load-data.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB 4.0.0-beta Release Notes](/releases/release-4.0.0-beta.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 4.0 Beta Release Notes](/releases/release-4.0.0-beta.md) ### tidb_dml_type Referenced in: -- [Basic Features](/basic-features.md) -- [Configure Memory Usage](/configure-memory-usage.md) -- [Identify Slow Queries](/identify-expensive-queries.md) -- [IMPORT INTO vs TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [TiDB Features](/basic-features.md) +- [TiDB Memory Control](/configure-memory-usage.md) +- [Identify Expensive Queries](/identify-expensive-queries.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) @@ -1330,82 +1399,100 @@ Referenced in: Referenced in: -- [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [Transaction Overview](/transaction-overview.md) -- [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report - v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report - v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Transactions](/transaction-overview.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) -### tidb_enable_async_commit +### tidb_enable_analyze_snapshot Referenced in: -- [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_enable_async_commit + +Referenced in: + +- [TiDB Features](/basic-features.md) +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [Transaction Overview](/transaction-overview.md) -- [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report - v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report - v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report - v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report - v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report - v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB v6.0 TPC-C Performance Test Report](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB v5.4 TPC-C Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB v5.3 TPC-C Performance Test Report](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB v5.2 TPC-C Performance Test Report](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) -- [TiDB 5.0.0-rc Release Notes](/releases/release-5.0.0-rc.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Transactions](/transaction-overview.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) -### tidb_enable_analyze_snapshot +### tidb_enable_async_merge_global_stats Referenced in: - [System Variables](/system-variables.md) -- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) +- [TiDB 7.5.3 Release Notes](/releases/release-7.5.3.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) ### tidb_enable_auto_analyze Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SQL FAQs](/faq/sql-faq.md) -- [SQL Plan Replayer User Guide](/sql-plan-replayer.md) -- [Statistics in TiDB](/statistics.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_enable_auto_analyze_priority_queue Referenced in: -- [Statistics in TiDB](/statistics.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1420,7 +1507,7 @@ Referenced in: - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [System Variables](/system-variables.md) -- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) ### tidb_enable_batch_dml @@ -1433,8 +1520,8 @@ Referenced in: Referenced in: -- [Basic Features](/basic-features.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Features](/basic-features.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -1442,18 +1529,65 @@ Referenced in: Referenced in: -- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) -- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Constraints](/constraints.md) +- [CHECK\_CONSTRAINTS](/information-schema/information-schema-check-constraints.md) +- [TIDB\_CHECK\_CONSTRAINTS](/information-schema/information-schema-tidb-check-constraints.md) - [System Variables](/system-variables.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [TiProxy Overview](/tiproxy/tiproxy-overview.md) -- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) -- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + +### tidb_enable_chunk_rpc + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_enable_clustered_index + +Referenced in: + +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [TiDB Backup & Restore Overview](/br/backup-and-restore-overview.md) +- [Clustered Indexes](/clustered-indexes.md) +- [Create a Table](/develop/dev-guide-create-table.md) +- [TiDB Database Schema Design Overview](/develop/dev-guide-schema-design-overview.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) + +### tidb_enable_collect_execution_info + +Referenced in: + +- [Modify Configuration Dynamically](/dynamic-config.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [TIDB_INDEX_USAGE](/information-schema/information-schema-tidb-index-usage.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) ### tidb_enable_column_tracking @@ -1462,20 +1596,46 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + +### tidb_enable_ddl + +Referenced in: + +- [Modify Configuration Dynamically](/dynamic-config.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Topology Configuration File for TiDB Deployment Using TiUP](/tiup/tiup-cluster-topology-reference.md) + +### tidb_enable_dist_task + +Referenced in: + +- [TiDB Smooth Upgrade](/smooth-upgrade-tidb.md) +- [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) +- [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [System Variables](/system-variables.md) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [TiDB Global Sort](/tidb-global-sort.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_enable_enhanced_security Referenced in: +- [TiDB Features](/basic-features.md) +- [TiDB Dashboard User Management](/dashboard/dashboard-user.md) - [BACKUP](/sql-statements/sql-statement-backup.md) -- [Basic Features](/basic-features.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Dashboard User Guide](/dashboard/dashboard-user.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) ### tidb_enable_exchange_partition @@ -1489,25 +1649,25 @@ Referenced in: Referenced in: -- [Extended Statistics](/extended-statistics.md) +- [Introduction to Extended Statistics](/extended-statistics.md) - [System Variables](/system-variables.md) ### tidb_enable_external_ts_read Referenced in: -- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) -- [External Timestamp Read](/tidb-external-ts.md) -- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) +- [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) - [System Variables](/system-variables.md) +- [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_fast_analyze Referenced in: -- [Basic Features](/basic-features.md) -- [Extended Statistics](/extended-statistics.md) +- [TiDB Features](/basic-features.md) +- [Introduction to Extended Statistics](/extended-statistics.md) - [System Variables](/system-variables.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -1532,8 +1692,8 @@ Referenced in: Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_enable_global_index @@ -1545,75 +1705,199 @@ Referenced in: - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -### tidb_enable_lazy_cursor_fetch +### tidb_enable_gogc_tuner Referenced in: -- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) -- [Connection Parameters](/develop/dev-guide-connection-parameters.md) - [System Variables](/system-variables.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_enable_non_prepared_plan_cache +### tidb_enable_historical_stats Referenced in: -- [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) -- [Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) -- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -### tidb_enable_non_prepared_plan_cache_for_dml +### tidb_enable_historical_stats_for_capture Referenced in: -- [Non-Prepared Plan Cache](/sql-non-prepared-plan-cache.md) - [System Variables](/system-variables.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -### tidb_enable_noop_functions +### tidb_enable_index_merge Referenced in: -- [Information Functions](/functions-and-operators/information-functions.md) -- [Pessimistic Transaction Model](/pessimistic-transaction.md) -- [SELECT](/sql-statements/sql-statement-select.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Index Selection](/choose-index.md) +- [Explain Statements Using Index Merge](/explain-index-merge.md) +- [Optimizer Hints](/optimizer-hints.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) -### tidb_enable_noop_variables +### tidb_enable_index_merge_join Referenced in: - [System Variables](/system-variables.md) -- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tidb_enable_null_aware_anti_join +### tidb_enable_instance_plan_cache Referenced in: +- [TiDB Features](/basic-features.md) - [System Variables](/system-variables.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) + +### tidb_enable_lazy_cursor_fetch + +Referenced in: + +- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [System Variables](/system-variables.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) + +### tidb_enable_legacy_instance_scope + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_enable_list_partition + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) + +### tidb_enable_local_txn + +Referenced in: + +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) + +### tidb_enable_metadata_lock + +Referenced in: + +- [Metadata Lock](/metadata-lock.md) +- [System Variables](/system-variables.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_enable_mutation_checker + +Referenced in: + +- [System Variables](/system-variables.md) +- [Troubleshoot Inconsistency Between Data and Indexes](/troubleshoot-data-inconsistency-errors.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_enable_new_cost_interface + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_enable_new_only_full_group_by_check + +Referenced in: + +- [SQL Mode](/sql-mode.md) +- [System Variables](/system-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_enable_non_prepared_plan_cache + +Referenced in: + +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_enable_non_prepared_plan_cache_for_dml + +Referenced in: + +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_enable_noop_functions + +Referenced in: + +- [Information Functions](/functions-and-operators/information-functions.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [SELECT](/sql-statements/sql-statement-select.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) + +### tidb_enable_noop_variables + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_enable_null_aware_anti_join + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_enable_ordered_result_mode + +Referenced in: + +- [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) +- [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) +- [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) ### tidb_enable_outer_join_reorder Referenced in: -- [Join Reorder](/join-reorder.md) +- [Introduction to Join Reorder](/join-reorder.md) - [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +### tidb_enable_paging + +Referenced in: + +- [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + ### tidb_enable_parallel_apply Referenced in: @@ -1624,18 +1908,45 @@ Referenced in: - [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) -### tidb_enable_pipelined_window_function +### tidb_enable_parallel_hashagg_spill Referenced in: +- [TiDB Memory Control](/configure-memory-usage.md) - [System Variables](/system-variables.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_enable_pipelined_window_function + +Referenced in: + - [Window Functions](/functions-and-operators/window-functions.md) +- [System Variables](/system-variables.md) + +### tidb_enable_plan_cache_for_param_limit + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_enable_plan_cache_for_subquery + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_plan_replayer_capture Referenced in: -- [SQL Plan Management](/sql-plan-replayer.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -1643,7 +1954,7 @@ Referenced in: Referenced in: -- [SQL Plan Management](/sql-plan-replayer.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -1652,10 +1963,10 @@ Referenced in: Referenced in: - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [TiDB Dashboard FAQs](/dashboard/dashboard-faq.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) -- [TiDB Dashboard FAQ](/dashboard/dashboard-faq.md) -- [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -1675,17 +1986,35 @@ Referenced in: - [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### tidb_enable_rate_limit_action Referenced in: -- [Configure Memory Usage](/configure-memory-usage.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [System Variables](/system-variables.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +### tidb_enable_resource_control + +Referenced in: + +- [Error Codes and Troubleshooting](/error-codes.md) +- [ALTER RESOURCE GROUP](/sql-statements/sql-statement-alter-resource-group.md) +- [`CALIBRATE RESOURCE`](/sql-statements/sql-statement-calibrate-resource.md) +- [CREATE RESOURCE GROUP](/sql-statements/sql-statement-create-resource-group.md) +- [DROP RESOURCE GROUP](/sql-statements/sql-statement-drop-resource-group.md) +- [SET RESOURCE GROUP](/sql-statements/sql-statement-set-resource-group.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) +- [TiKV Configuration File](/tikv-configuration-file.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + ### tidb_enable_reuse_chunk Referenced in: @@ -1694,38 +2023,43 @@ Referenced in: - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_enable_row_level_checksum +### tidb_enable_shared_lock_promotion Referenced in: -- [Data Integrity Check](/ticdc/ticdc-integrity-check.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [System Variables](/system-variables.md) -- [TiDB Functions](/functions-and-operators/tidb-functions.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_enable_slow_log Referenced in: -- [Dynamic Configuration](/dynamic-config.md) +- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) +- [Modify Configuration Dynamically](/dynamic-config.md) - [Identify Slow Queries](/identify-slow-queries.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) + +### tidb_enable_stats_owner + +Referenced in: + - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_enable_stmt_summary Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [SQL Plan Management](/sql-plan-management.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) ### tidb_enable_strict_double_type_check @@ -1733,13 +2067,13 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_enable_table_partition Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) @@ -1760,36 +2094,56 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) +- [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +### tidb_enable_tmp_storage_on_oom + +Referenced in: + +- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) +- [TiDB Memory Control](/configure-memory-usage.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [Enable Encryption for Disk Spill](/enable-disk-spill-encrypt.md) +- [Explain Statements That Use Joins](/explain-joins.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) + ### tidb_enable_top_sql Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Dashboard Top SQL Page](/dashboard/top-sql.md) - [System Variables](/system-variables.md) -- [Top SQL](/dashboard/top-sql.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_enable_tso_follower_proxy Referenced in: -- [Basic Features](/basic-features.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Features](/basic-features.md) - [PD Microservices](/pd-microservices.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) -- [TiDB 5.3.0 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) + +### tidb_enable_unsafe_substitute + +Referenced in: + +- [Generated Columns](/generated-columns.md) +- [System Variables](/system-variables.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_vectorized_expression Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) - [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) @@ -1797,65 +2151,116 @@ Referenced in: - [TiDB 5.0.6 Release Notes](/releases/release-5.0.6.md) - [TiDB 4.0.16 Release Notes](/releases/release-4.0.16.md) +### tidb_enable_window_function + +Referenced in: + +- [Window Functions](/functions-and-operators/window-functions.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) + ### tidb_enforce_mpp Referenced in: - [Explore HTAP](/explore-htap.md) -- [Stale Read](/stale-read.md) +- [Usage Scenarios of Stale Read](/stale-read.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) -- [Troubleshoot TiFlash](/tiflash/troubleshoot-tiflash.md) +- [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) +- [Troubleshoot a TiFlash Cluster](/tiflash/troubleshoot-tiflash.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) - [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) +### tidb_evolve_plan_baselines + +Referenced in: + +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) + +### tidb_evolve_plan_task_end_time + +Referenced in: + +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_evolve_plan_task_max_time + +Referenced in: + +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_evolve_plan_task_start_time + +Referenced in: + +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + ### tidb_executor_concurrency Referenced in: - [System Variables](/system-variables.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_expensive_query_time_threshold Referenced in: -- [Dynamic Configuration](/dynamic-config.md) -- [Identify Slow Queries](/identify-expensive-queries.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Modify Configuration Dynamically](/dynamic-config.md) +- [Identify Expensive Queries](/identify-expensive-queries.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) +### tidb_expensive_txn_time_threshold + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + ### tidb_external_ts Referenced in: -- [Check Data Consistency Between Upstream and Downstream](/ticdc/ticdc-upstream-downstream-check.md) -- [External Timestamp Read](/tidb-external-ts.md) -- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) -- [Stale Read](/stale-read.md) +- [TOC-tidb-cloud](/TOC-tidb-cloud.md) +- [TOC](/TOC.md) +- [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) +- [Usage Scenarios of Stale Read](/stale-read.md) - [System Variables](/system-variables.md) +- [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_force_priority Referenced in: -- [Dynamic Configuration](/dynamic-config.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Modify Configuration Dynamically](/dynamic-config.md) - [SQL FAQs](/faq/sql-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) - [TiDB 2.1 RC3 Release Notes](/releases/release-2.1-rc.3.md) @@ -1864,988 +2269,1919 @@ Referenced in: Referenced in: -- [GC Configuration](/garbage-collection-configuration.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_gc_enable Referenced in: -- [GC Configuration](/garbage-collection-configuration.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Migrate Data from TiDB to MySQL](/migrate-from-tidb-to-mysql.md) -- [Migrate Data from TiDB to TiDB](/migrate-from-tidb-to-tidb.md) -- [Migrate from Self-Hosted TiDB to TiDB Cloud](https://docs.pingcap.com/tidbcloud/migrate-from-op-tidb) +- [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) +- [Migrate Data from TiDB to MySQL-compatible Databases](/migrate-from-tidb-to-mysql.md) +- [Migrate from One TiDB Cluster to Another TiDB Cluster](/migrate-from-tidb-to-tidb.md) - [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) -- [Secondary Cluster for Disaster Recovery](/dr-secondary-cluster.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Migrate from TiDB Self-Managed to TiDB Cloud](https://docs.pingcap.com/tidbcloud/migrate-from-op-tidb) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_gc_life_time Referenced in: -- [Back up and Restore Incrementally](/br/br-incremental-guide.md) -- [Create a Changefeed with MySQL as Downstream](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-mysql) -- [Create a Changefeed with TiDB Cloud as Downstream](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-tidb-cloud) -- [Dumpling Overview](/dumpling-overview.md) +- [TiDB Incremental Backup and Restore Guide](/br/br-incremental-guide.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [Stale Read](/develop/dev-guide-use-stale-read.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) - [Error Codes and Troubleshooting](/error-codes.md) +- [SQL FAQs](/faq/sql-faq.md) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) +- [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) - [FLASHBACK DATABASE](/sql-statements/sql-statement-flashback-database.md) - [FLASHBACK TABLE](/sql-statements/sql-statement-flashback-table.md) -- [GC Configuration](/garbage-collection-configuration.md) -- [Read Historical Data](/read-historical-data.md) -- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) -- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) +- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) +- [Sink to MySQL](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-mysql) +- [Sink to TiDB Cloud](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-tidb-cloud) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [TiKV In-Memory Engine](/tikv-in-memory-engine.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [Use Stale Read](/develop/dev-guide-use-stale-read.md) +- [TiKV MVCC In-Memory Engine](/tikv-in-memory-engine.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) -### tidb_gc_run_interval +### tidb_gc_max_wait_time Referenced in: -- [GC Configuration](/garbage-collection-configuration.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) - [System Variables](/system-variables.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_gc_run_interval + +Referenced in: + +- [Garbage Collection Configuration](/garbage-collection-configuration.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_gc_scan_lock_mode Referenced in: -- [Basic Features](/basic-features.md) -- [GC Configuration](/garbage-collection-configuration.md) +- [TiDB Features](/basic-features.md) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) - [GC Overview](/garbage-collection-overview.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_general_log Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Configuration Options](/command-line-flags-for-tidb-configuration.md) +- [TiDB Data Migration FAQs](/dm/dm-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Command-Line Flags](/command-line-flags-for-tidb-configuration.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -### tidb_hash_join_concurrency - -Referenced in: - -- [Analyze Slow Queries](/analyze-slow-queries.md) -- [Explain Joins](/explain-joins.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) -- [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - -### tidb_hashagg_final_concurrency - -Referenced in: - -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) -- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB v5.1 TPC-C Performance Test Report](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) - -### tidb_hashagg_partial_concurrency +### tidb_generate_binary_plan Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [System Variables](/system-variables.md) -- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report - v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB v5.0 TPC-C Performance Test Report](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tidb_host_lookup_max_retries +### tidb_gogc_tuner_max_value Referenced in: - [System Variables](/system-variables.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -### tidb_ignore_prepared_cache_close_stmt +### tidb_gogc_tuner_min_value Referenced in: -- [Performance Tuning Best Practices](/performance-tuning-practices.md) -- [Performance Tuning Methods](/performance-tuning-methods.md) -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -### tidb_ignore_index_hint +### tidb_gogc_tuner_threshold Referenced in: - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_index_join_batch_size +### tidb_guarantee_linearizability Referenced in: -- [Explain Joins](/explain-joins.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -### tidb_index_lookup_concurrency +### tidb_hash_exchange_with_new_collation Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -### tidb_index_lookup_join_concurrency +### tidb_hash_join_concurrency Referenced in: -- [Explain Joins](/explain-joins.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Analyze Slow Queries](/analyze-slow-queries.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [Best Practices for Three-Node Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) +- [Explain Statements That Use Joins](/explain-joins.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Three Nodes Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -### tidb_index_lookup_size +### tidb_hash_join_version Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -### tidb_index_serial_scan_concurrency +### tidb_hashagg_final_concurrency Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statistics in TiDB](/statistics.md) +- [TiDB Sysbench Performance Test Report -- v4.0 vs. v3.0](/benchmark/benchmark-sysbench-v4-vs-v3.md) +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB Sysbench Performance Test Report -- v3.0 vs. v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [TiDB Cloud v6.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) -- [TiDB Cloud v7.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) -- [TiDB Cloud v7.5 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) -- [TiDB Cloud v8.1 TPC-C Performance Test Report](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -### tidb_init_chunk_size +### tidb_hashagg_partial_concurrency Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Sysbench Performance Test Report -- v4.0 vs. v3.0](/benchmark/benchmark-sysbench-v4-vs-v3.md) +- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) +- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) +- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) +- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) +- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) +- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB Sysbench Performance Test Report -- v3.0 vs. v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) +- [TiDB TPC-C Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) -- [Transaction Isolation Levels](/transaction-isolation-levels.md) -### tidb_isolation_read_engines +### tidb_historical_stats_duration Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB v5.4 TPC-H Performance Test Report](/benchmark/v5.4-performance-benchmarking-with-tpch.md) -- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) -- [TiFlash Compatibility](/tiflash/tiflash-compatibility.md) -- [TiUP Bench Reference](/tiup/tiup-bench.md) -- [Use FastScan](/tiflash/use-fastscan.md) -- [Use HTAP Cluster](https://docs.pingcap.com/tidbcloud/use-htap-cluster) -- [Use TiDB to Read TiFlash](/tiflash/use-tidb-to-read-tiflash.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -### tidb_last_txn_info +### tidb_idle_transaction_timeout Referenced in: +- [TiDB Features](/basic-features.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [System Variables](/system-variables.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -### tidb_max_auto_analyze_time +### tidb_ignore_prepared_cache_close_stmt Referenced in: -- [Statistics in TiDB](/statistics.md) +- [Performance Analysis and Tuning](/performance-tuning-methods.md) +- [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_max_chunk_size +### tidb_index_join_batch_size Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Explain Statements That Use Joins](/explain-joins.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) -- [Transaction Isolation Levels](/transaction-isolation-levels.md) -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -- [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) -- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) -- [TiDB 2.0.9 Release Notes](/releases/release-2.0.9.md) -### tidb_max_delta_schema_count +### tidb_index_join_double_read_penalty_cost_rate Referenced in: -- [SQL FAQs](/faq/sql-faq.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) -- [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -### tidb_max_disk_usage +### tidb_index_lookup_concurrency Referenced in: +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -### tidb_max_disk_quota +### tidb_index_lookup_join_concurrency Referenced in: +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [Best Practices for Three-Node Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) +- [Explain Statements That Use Joins](/explain-joins.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -### tidb_max_txn_ttl +### tidb_index_lookup_size Referenced in: +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -### tidb_mem_oom_action +### tidb_index_merge_intersection_concurrency Referenced in: -- [Configure Memory Usage](/configure-memory-usage.md) -- [Non-transactional DML](/non-transactional-dml.md) - [System Variables](/system-variables.md) -- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### tidb_mem_quota_analyze +### tidb_index_serial_scan_concurrency Referenced in: -- [Statistics in TiDB](/statistics.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) -- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) -- [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) +- [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) -### tidb_mem_quota_apply_cache +### tidb_init_chunk_size Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) -### tidb_mem_quota_binding_cache +### tidb_instance_plan_cache_max_size Referenced in: -- [SQL Plan Management](/sql-plan-management.md) - [System Variables](/system-variables.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -### tidb_mem_quota_indexlookupjoin +### tidb_instance_plan_cache_reserved_percentage Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -### tidb_mem_quota_nestedloopapply +### tidb_isolation_read_engines Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB TPC-H Performance Test Report -- TiDB v5.4 MPP mode vs. Greenplum 6.15.0 and Apache Spark 3.1.1](/benchmark/v5.4-performance-benchmarking-with-tpch.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Use an HTAP Cluster](https://docs.pingcap.com/tidbcloud/use-htap-cluster) +- [TiFlash Compatibility Notes](/tiflash/tiflash-compatibility.md) +- [Use FastScan](/tiflash/use-fastscan.md) +- [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) +- [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) -### tidb_mem_quota_query +### tidb_last_ddl_info Referenced in: -- [Configure Memory Usage](/configure-memory-usage.md) -- [Contribute to TiDB Documentation](/CONTRIBUTING.md) -- [Enable Disk Spill Encryption](/enable-disk-spill-encrypt.md) -- [Error Codes and Troubleshooting](/error-codes.md) -- [Explain Joins](/explain-joins.md) -- [Identify Slow Queries](/identify-expensive-queries.md) -- [Non-transactional DML](/non-transactional-dml.md) -- [Optimizer Hints](/optimizer-hints.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [TiFlash Results Materialization](/tiflash/tiflash-results-materialization.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -- [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) -- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -- [TiDB 7.5.4 Release Notes](/releases/release-7.5.4.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) -- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) -- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) -- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) -- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) -- [TiDB 6.5.11 Release Notes](/releases/release-6.5.11.md) -- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) -- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) -- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) -- [TiDB 4.0.10 Release Notes](/releases/release-4.0.10.md) -### tidb_mem_quota_sort +### tidb_last_plan_replayer_token Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -### tidb_merge_join_concurrency +### tidb_last_query_info Referenced in: - [System Variables](/system-variables.md) +- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -### tidb_merge_partition_stats_concurrency +### tidb_last_txn_info Referenced in: - [System Variables](/system-variables.md) -- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) -- [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) -### tidb_metric_query_range_duration +### tidb_load_based_replica_read_threshold Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Monitoring API](/metrics-schema.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Troubleshoot Hotspot Issues](/troubleshoot-hot-spot-issues.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -### tidb_metric_query_step +### tidb_log_file_max_days Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Monitoring API](/metrics-schema.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tidb_multi_statement_mode +### tidb_low_resolution_tso Referenced in: -- [Error Codes and Troubleshooting](/error-codes.md) -- [Integrate TiDB Cloud with n8n](https://docs.pingcap.com/tidbcloud/integrate-tidbcloud-with-n8n) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) -- [TiDB 6.5.8 Release Notes](/releases/release-6.5.8.md) -- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) -- [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) -- [TiDB 5.0.3 Release Notes](/releases/release-5.0.3.md) -- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 3.0.0-rc.2 Release Notes](/releases/release-3.0.0-rc.2.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) -### tidb_nontransactional_ignore_error +### tidb_max_auto_analyze_time Referenced in: -- [Non-transactional DML](/non-transactional-dml.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### tidb_opt_agg_push_down +### tidb_max_bytes_before_tiflash_external_group_by Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) -- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) -- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) -- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [TiDB 6.1.7 Release Notes](/releases/release-6.1.7.md) -- [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) -- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) -- [TiDB 4.0 GA Release Notes](/releases/release-4.0-ga.md) +- [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -### tidb_opt_broadcast_cartesian_join +### tidb_max_bytes_before_tiflash_external_join Referenced in: - [System Variables](/system-variables.md) +- [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -### tidb_opt_concurrency_factor +### tidb_max_bytes_before_tiflash_external_sort Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -### tidb_opt_correlation_exp_factor +### tidb_max_chunk_size Referenced in: -- [Extended Statistics](/extended-statistics.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) +- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) +- [TiDB 2.0.9 Release Notes](/releases/release-2.0.9.md) -### tidb_opt_correlation_threshold +### tidb_max_delta_schema_count Referenced in: -- [Extended Statistics](/extended-statistics.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) +- [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) -### tidb_opt_desc_factor +### tidb_max_paging_size Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -### tidb_opt_distinct_agg_push_down +### tidb_max_tiflash_threads Referenced in: -- [Agg Distinct Optimization](/agg-distinct-optimization.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Modify Configuration Dynamically](/dynamic-config.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Performance Tuning Methods](/tidb-performance-tuning-config.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [Configure TiFlash](/tiflash/tiflash-configuration.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### tidb_opt_enable_correlation_adjustment +### tidb_mem_oom_action Referenced in: +- [TiDB Memory Control](/configure-memory-usage.md) +- [Non-Transactional DML Statements](/non-transactional-dml.md) - [System Variables](/system-variables.md) -- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### tidb_opt_insubq_to_join_and_agg +### tidb_mem_quota_analyze Referenced in: -- [Optimizer Hints](/optimizer-hints.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Subquery Optimization](/subquery-optimization.md) +- [Introduction to Statistics](/statistics.md) - [System Variables](/system-variables.md) -- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) +- [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### tidb_opt_join_reorder_threshold +### tidb_mem_quota_apply_cache Referenced in: -- [Join Reorder](/join-reorder.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) -### tidb_opt_limit_push_down_threshold +### tidb_mem_quota_binding_cache Referenced in: +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) -- [TiDB 5.2.0 Release Notes](/releases/release-5.2.0.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_opt_memory_factor +### tidb_mem_quota_query Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Documentation Contributing Guide](/CONTRIBUTING.md) +- [TiDB TPC-H Performance Test Report -- TiDB v5.4 MPP mode vs. Greenplum 6.15.0 and Apache Spark 3.1.1](/benchmark/v5.4-performance-benchmarking-with-tpch.md) +- [TiDB Memory Control](/configure-memory-usage.md) +- [Enable Encryption for Disk Spill](/enable-disk-spill-encrypt.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [Explain Statements That Use Joins](/explain-joins.md) +- [Identify Expensive Queries](/identify-expensive-queries.md) +- [Non-Transactional DML Statements](/non-transactional-dml.md) +- [Optimizer Hints](/optimizer-hints.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.5.4 Release Notes](/releases/release-7.5.4.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) +- [TiDB 6.5.11 Release Notes](/releases/release-6.5.11.md) +- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) +- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 4.0.10 Release Notes](/releases/release-4.0.10.md) + +### tidb_memory_debug_mode_alarm_ratio + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_memory_debug_mode_min_heap_inuse + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_memory_usage_alarm_keep_record_num + +Referenced in: + +- [TiDB Memory Control](/configure-memory-usage.md) +- [System Variables](/system-variables.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_memory_usage_alarm_ratio + +Referenced in: + +- [TiDB Memory Control](/configure-memory-usage.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_merge_join_concurrency + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_merge_partition_stats_concurrency + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) + +### tidb_metric_query_range_duration + +Referenced in: + +- [Metrics Schema](/metrics-schema.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) + +### tidb_metric_query_step + +Referenced in: + +- [Metrics Schema](/metrics-schema.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) + +### tidb_min_paging_size + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_mpp_store_fail_ttl + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_multi_statement_mode + +Referenced in: + +- [Error Codes and Troubleshooting](/error-codes.md) +- [System Variables](/system-variables.md) +- [Integrate TiDB Cloud with n8n](https://docs.pingcap.com/tidbcloud/integrate-tidbcloud-with-n8n) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 6.5.8 Release Notes](/releases/release-6.5.8.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) +- [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) +- [TiDB 5.0.3 Release Notes](/releases/release-5.0.3.md) +- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md) + +### tidb_non_prepared_plan_cache_size + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_nontransactional_ignore_error + +Referenced in: + +- [Non-Transactional DML Statements](/non-transactional-dml.md) +- [System Variables](/system-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_opt_advanced_join_hint + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_opt_agg_push_down + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) +- [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.1.7 Release Notes](/releases/release-6.1.7.md) +- [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) +- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) +- [TiDB 4.0 GA Release Notes](/releases/release-4.0-ga.md) + +### tidb_opt_broadcast_cartesian_join + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_opt_concurrency_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_copcpu_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_correlation_exp_factor + +Referenced in: + +- [Introduction to Extended Statistics](/extended-statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_opt_correlation_threshold + +Referenced in: + +- [Introduction to Extended Statistics](/extended-statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_cpu_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_desc_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_disk_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_distinct_agg_push_down + +Referenced in: + +- [Distinct Optimization](/agg-distinct-optimization.md) +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) + +### tidb_opt_enable_correlation_adjustment + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) + +### tidb_opt_enable_fuzzy_binding + +Referenced in: + +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [System Variables](/system-variables.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) + +### tidb_opt_enable_hash_join + +Referenced in: + +- [Optimizer Hints](/optimizer-hints.md) +- [System Variables](/system-variables.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) +- [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) + +### tidb_opt_enable_late_materialization + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiFlash Late Materialization](/tiflash/tiflash-late-materialization.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_opt_enable_mpp_shared_cte_execution + +Referenced in: + +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tidb_opt_enable_non_eval_scalar_subquery + +Referenced in: + +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) +- [`EXPLAIN`](/sql-statements/sql-statement-explain.md) +- [System Variables](/system-variables.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tidb_opt_fix_control + +Referenced in: + +- [Control Execution Plan](/control-execution-plan.md) +- [Optimizer Fix Controls](/optimizer-fix-controls.md) +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_opt_force_inline_cte + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_opt_insubq_to_join_and_agg + +Referenced in: + +- [Optimizer Hints](/optimizer-hints.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Subquery Related Optimizations](/subquery-optimization.md) +- [System Variables](/system-variables.md) +- [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) + +### tidb_opt_join_reorder_threshold + +Referenced in: + +- [Introduction to Join Reorder](/join-reorder.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) + +### tidb_opt_limit_push_down_threshold + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) + +### tidb_opt_memory_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_mpp_outer_join_fixed_build_side + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_opt_network_factor + +Referenced in: + +- [Index Selection](/choose-index.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_objective + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) + +### tidb_opt_ordering_index_selectivity_ratio + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_opt_ordering_index_selectivity_threshold + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_opt_prefer_range_scan + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) + +### tidb_opt_prefix_index_single_scan + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_opt_projection_push_down + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) + +### tidb_opt_range_max_size + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) + +### tidb_opt_scan_factor + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_seek_factor + +Referenced in: + +- [Index Selection](/choose-index.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_opt_skew_distinct_agg + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) + +### tidb_opt_three_stage_distinct_agg + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_opt_tiflash_concurrency_factor + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_opt_use_invisible_indexes + +Referenced in: + +- [ALTER INDEX](/sql-statements/sql-statement-alter-index.md) +- [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [System Variables](/system-variables.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + +### tidb_opt_write_row_id + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_optimizer_selectivity_level + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) + +### tidb_partition_prune_mode + +Referenced in: + +- [Partitioning](/partitioned-table.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [TiFlash Upgrade Guide](/tiflash-upgrade-guide.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) + +### tidb_persist_analyze_options + +Referenced in: + +- [Introduction to Statistics](/statistics.md) +- [System Variables](/system-variables.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + +### tidb_pessimistic_txn_fair_locking + +Referenced in: + +- [System Variables](/system-variables.md) +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + +### tidb_placement_mode + +Referenced in: + +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_pprof_sql_cpu + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) + +### tidb_pre_split_regions + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) + +### tidb_prefer_broadcast_join_by_exchange_data_size + +Referenced in: + +- [System Variables](/system-variables.md) +- [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_prepared_plan_cache_memory_guard_ratio + +Referenced in: + +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_prepared_plan_cache_size + +Referenced in: + +- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) +- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) +- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) +- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) +- [System Variables](/system-variables.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_projection_concurrency + +Referenced in: + +- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) + +### tidb_query_log_max_len + +Referenced in: + +- [Identify Slow Queries](/identify-slow-queries.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) +- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) + +### tidb_rc_read_check_ts + +Referenced in: + +- [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) + +### tidb_rc_write_check_ts + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) + +### tidb_read_consistency + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_read_staleness + +Referenced in: + +- [TOC-tidb-cloud](/TOC-tidb-cloud.md) +- [TOC](/TOC.md) +- [Stale Read](/develop/dev-guide-use-stale-read.md) +- [Usage Scenarios of Stale Read](/stale-read.md) +- [System Variables](/system-variables.md) +- [Read Historical Data Using the `tidb_read_staleness` System Variable](/tidb-read-staleness.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + +### tidb_record_plan_in_slow_log + +Referenced in: + +- [Modify Configuration Dynamically](/dynamic-config.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) + +### tidb_redact_log + +Referenced in: + +- [Configuration Options](/command-line-flags-for-tidb-configuration.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [Log Redaction](/log-redaction.md) +- [Non-Transactional DML Statements](/non-transactional-dml.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.4 Release Notes](/releases/release-7.5.4.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) + +### tidb_regard_null_as_point + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + +### tidb_remove_orderby_in_subquery + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) + +### tidb_replica_read + +Referenced in: + +- [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) +- [Best Practices for Read-Only Storage Nodes](/best-practices/readonly-nodes.md) +- [Local Read under Three Data Centers Deployment](/best-practices/three-dc-local-read.md) +- [Follower Read](/develop/dev-guide-use-follower-read.md) +- [Follower Read](/follower-read.md) +- [Optimizer Hints](/optimizer-hints.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) +- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) +- [TiDB 3.1 Beta.2 Release Notes](/releases/release-3.1.0-beta.2.md) + +### tidb_request_source_type + +Referenced in: -### tidb_opt_network_factor - -Referenced in: - -- [Choose Indexes](/choose-index.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -### tidb_opt_objective +### tidb_resource_control_strict_mode + +Referenced in: + +- [Optimizer Hints](/optimizer-hints.md) +- [Privilege Management](/privilege-management.md) +- [SET RESOURCE GROUP](/sql-statements/sql-statement-set-resource-group.md) +- [System Variables](/system-variables.md) +- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) + +### tidb_restricted_read_only + +Referenced in: + +- [Privilege Management](/privilege-management.md) +- [System Variables](/system-variables.md) +- [Replicate Data to MySQL-compatible Databases](/ticdc/ticdc-sink-to-mysql.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) +- [TiDB 5.3.1 Release Notes](/releases/release-5.3.1.md) + +### tidb_retry_limit + +Referenced in: + +- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Transactions](/transaction-overview.md) +- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) +- [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) + +### tidb_row_format_version + +Referenced in: + +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) + +### tidb_runtime_filter_mode + +Referenced in: + +- [Runtime Filter](/runtime-filter.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tidb_runtime_filter_type + +Referenced in: + +- [Runtime Filter](/runtime-filter.md) +- [System Variables](/system-variables.md) + +### tidb_scatter_region + +Referenced in: + +- [Highly Concurrent Write Best Practices](/best-practices/high-concurrency-best-practices.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Split Region](/sql-statements/sql-statement-split-region.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 6.1.7 Release Notes](/releases/release-6.1.7.md) +- [TiDB 2.1.15 Release Notes](/releases/release-2.1.15.md) + +### tidb_schema_cache_size Referenced in: +- [Schema Cache](/schema-cache.md) - [System Variables](/system-variables.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -- [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) + +### tidb_schema_version_cache_limit + +Referenced in: + +- [System Variables](/system-variables.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -### tidb_opt_prefix_index_single_scan +### tidb_server_memory_limit Referenced in: +- [TiDB Memory Control](/configure-memory-usage.md) +- [MEMORY_USAGE_OPS_HISTORY](/information-schema/information-schema-memory-usage-ops-history.md) +- [MEMORY_USAGE](/information-schema/information-schema-memory-usage.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) +- [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) +- [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) +- [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) +- [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_opt_range_max_size +### tidb_server_memory_limit_gc_trigger Referenced in: +- [TiDB Memory Control](/configure-memory-usage.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_opt_scan_factor +### tidb_server_memory_limit_sess_min_size Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_opt_seek_factor +### tidb_service_scope Referenced in: -- [Choose Indexes](/choose-index.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [TiDB Features](/basic-features.md) +- [Configuration Options](/command-line-flags-for-tidb-configuration.md) +- [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [System Variables](/system-variables.md) +- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [TiDB Global Sort](/tidb-global-sort.md) +- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -### tidb_opt_skew_distinct_agg +### tidb_session_alias Referenced in: - [System Variables](/system-variables.md) -- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -### tidb_opt_tiflash_concurrency_factor +### tidb_session_plan_cache_size Referenced in: +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) +- [TiDB Cloud Sysbench Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-sysbench) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -### tidb_opt_write_row_id +### tidb_shard_allocate_step + +Referenced in: + +- [System Variables](/system-variables.md) + +### tidb_shard_row_id_bits + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) + +### tidb_simplified_metrics Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) + +### tidb_skip_ascii_check + +Referenced in: + +- [System Variables](/system-variables.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) + +### tidb_skip_isolation_level_check + +Referenced in: + +- [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) +- [Transaction overview](/develop/dev-guide-transaction-overview.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) +- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) + +### tidb_skip_missing_partition_stats + +Referenced in: + +- [Introduction to Statistics](/statistics.md) +- [System Variables](/system-variables.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) + +### tidb_skip_utf8_check + +Referenced in: + +- [Character Set and Collation](/character-set-and-collation.md) +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) +- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) + +### tidb_slow_log_threshold + +Referenced in: + +- [Overview Page](/dashboard/dashboard-overview.md) +- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) +- [Modify Configuration Dynamically](/dynamic-config.md) +- [TiDB Deployment FAQs](/faq/deploy-and-maintain-faq.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [Quick Start with TiDB Self-Managed](/quick-start-with-tidb.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) -### tidb_optimizer_selectivity_level +### tidb_slow_query_file Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Identify Slow Queries](/identify-slow-queries.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### tidb_partition_prune_mode +### tidb_snapshot Referenced in: -- [MPP Mode](/tiflash/use-tiflash-mpp-mode.md) -- [Partitioned Table](/partitioned-table.md) -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [TOC-tidb-cloud](/TOC-tidb-cloud.md) +- [TOC](/TOC.md) +- [TiDB Features](/basic-features.md) +- [Cached Tables](/cached-tables.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) +- [Non-Transactional DML Statements](/non-transactional-dml.md) +- [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) +- [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) +- [FLUSH TABLES](/sql-statements/sql-statement-flush-tables.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiFlash Upgrade Guide](/tiflash-upgrade-guide.md) +- [Temporary Tables](/temporary-tables.md) +- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) +- [TiDB 5.2.2 Release Notes](/releases/release-5.2.2.md) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) +- [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) +- [TiDB 5.0.3 Release Notes](/releases/release-5.0.3.md) +- [TiDB 4.0.12 Release Notes](/releases/release-4.0.12.md) +- [TiDB 4.0.11 Release Notes](/releases/release-4.0.11.md) +- [TiDB 4.0.5 Release Notes](/releases/release-4.0.5.md) +- [TiDB 3.0.11 Release Notes](/releases/release-3.0.11.md) +- [TiDB 2.1.11 Release Notes](/releases/release-2.1.11.md) +- [TiDB 2.1.10 Release Notes](/releases/release-2.1.10.md) +- [TiDB 2.0.4 Release Notes](/releases/release-2.0.4.md) + +### tidb_source_id + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) + +### tidb_stats_cache_mem_quota + +Referenced in: + +- [System Variables](/system-variables.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 5.1.0 Release Notes](/releases/release-5.1.0.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) + +### tidb_stats_load_pseudo_timeout + +Referenced in: + +- [Introduction to Statistics](/statistics.md) +- [System Variables](/system-variables.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + +### tidb_stats_load_sync_wait + +Referenced in: + +- [Introduction to Statistics](/statistics.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) + +### tidb_stmt_summary_enable_persistent + +Referenced in: + +- [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_stmt_summary_file_max_backups + +Referenced in: + +- [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_stmt_summary_file_max_days + +Referenced in: + +- [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) + +### tidb_stmt_summary_file_max_size + +Referenced in: + +- [Statement Summary Tables](/statement-summary-tables.md) +- [System Variables](/system-variables.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -### tidb_pprof_sql_cpu +### tidb_stmt_summary_filename Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -### tidb_prepared_plan_cache_memory_guard_ratio +### tidb_stmt_summary_history_size Referenced in: -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### tidb_prepared_plan_cache_size +### tidb_stmt_summary_internal_query Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB Sysbench Performance Test Report - v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report - v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB v6.1 TPC-C Performance Test Report](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB v6.2 TPC-C Performance Test Report](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### tidb_projection_concurrency +### tidb_stmt_summary_max_sql_length Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) +- [SLOW_QUERY](/information-schema/information-schema-slow-query.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB 5.0.0 Release Notes](/releases/release-5.0.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### tidb_query_log_max_len +### tidb_stmt_summary_max_stmt_count Referenced in: -- [Identify Slow Queries](/identify-slow-queries.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Statements Page of TiDB Dashboard](/dashboard/dashboard-statement-list.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB Cloud Release Notes - 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) +- [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) +- [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) +- [TiDB 4.0.14 Release Notes](/releases/release-4.0.14.md) -### tidb_read_staleness +### tidb_stmt_summary_refresh_interval Referenced in: -- [Read Historical Data Using tidb_read_staleness](/tidb-read-staleness.md) -- [Stale Read](/stale-read.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Use Stale Read](/develop/dev-guide-use-stale-read.md) -- [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### tidb_replica_read +### tidb_store_batch_size Referenced in: -- [Best Practices for TiDB on Public Cloud Platforms](/best-practices-on-public-cloud.md) -- [Best Practices for TiDB Read-Only Nodes Deployment](/best-practices/readonly-nodes.md) -- [Follower Read](/follower-read.md) -- [Optimizer Hints](/optimizer-hints.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Three Data Centers Deployment Solution with Local Read](/best-practices/three-dc-local-read.md) -- [Use Follower Read to Ensure Strongly Consistent Reads](/develop/dev-guide-use-follower-read.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) -- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) -- [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) -- [TiDB 3.1.0-beta.2 Release Notes](/releases/release-3.1.0-beta.2.md) -### tidb_retry_limit +### tidb_store_limit Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [TiDB Transaction Overview](/transaction-overview.md) -- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) -- [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) -- [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) +- [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) -### tidb_row_format_version +### tidb_streamagg_concurrency Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) -### tidb_scatter_region +### tidb_super_read_only Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) +- [TiDB 5.3.1 Release Notes](/releases/release-5.3.1.md) -### tidb_schema_cache_size +### tidb_sysdate_is_now Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_session_alias +### tidb_sysproc_scan_concurrency Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_skip_ascii_check +### tidb_table_cache_lease Referenced in: -- [Character Set and Collation](/character-set-and-collation.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Cached Tables](/cached-tables.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_skip_isolation_level_check +### tidb_tmp_table_max_size Referenced in: -- [Character Set and Collation](/character-set-and-collation.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statement Summary Tables](/statement-summary-tables.md) -- [Stale Read](/stale-read.md) - [System Variables](/system-variables.md) - [Temporary Tables](/temporary-tables.md) -- [Top SQL](/dashboard/top-sql.md) -- [Transaction Isolation Levels](/transaction-isolation-levels.md) -- [Use Stale Read](/develop/dev-guide-use-stale-read.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) -- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) -### tidb_skip_utf8_check +### tidb_top_sql_max_meta_count Referenced in: -- [Character Set and Collation](/character-set-and-collation.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_slow_log_threshold +### tidb_top_sql_max_time_series_count Referenced in: -- [Dashboard Slow Query Page](/dashboard/dashboard-slow-query.md) -- [Identify Slow Queries](/identify-slow-queries.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_slow_query_file +### tidb_track_aggregate_memory_usage Referenced in: -- [Identify Slow Queries](/identify-slow-queries.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -### tidb_snapshot +### tidb_tso_client_batch_max_wait_time Referenced in: -- [Read Historical Data](/read-historical-data.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Stale Read](/stale-read.md) +- [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) - [System Variables](/system-variables.md) -- [Use Stale Read](/develop/dev-guide-use-stale-read.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) -### tidb_stmt_summary_history_size +### tidb_tso_client_rpc_mode Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -### tidb_stmt_summary_internal_query +### tidb_ttl_delete_batch_size Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_stmt_summary_max_sql_length +### tidb_ttl_delete_rate_limit Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_stmt_summary_max_stmt_count +### tidb_ttl_delete_worker_count Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_stmt_summary_refresh_interval +### tidb_ttl_job_enable Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [TiDB 4.0.0-rc.2 Release Notes](/releases/release-4.0.0-rc.2.md) +- [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) +- [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_store_limit +### tidb_ttl_job_schedule_window_end_time Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_tbl_cache_size +### tidb_ttl_job_schedule_window_start_time Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_tmp_table_max_size +### tidb_ttl_running_tasks Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Temporary Tables](/temporary-tables.md) -- [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -### tidb_top_sql_max_meta_count +### tidb_ttl_scan_batch_size Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Top SQL](/dashboard/top-sql.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_top_sql_max_time_series_count +### tidb_ttl_scan_worker_count Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Top SQL](/dashboard/top-sql.md) -- [TiDB 5.4.0 Release Notes](/releases/release-5.4.0.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### tidb_txn_mode +### tidb_txn_assertion_level Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [TiDB Transaction Overview](/transaction-overview.md) -- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) +- [Troubleshoot Inconsistency Between Data and Indexes](/troubleshoot-data-inconsistency-errors.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### tidb_use_plan_baselines +### tidb_txn_commit_batch_size Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [SQL Plan Management](/sql-plan-management.md) - [System Variables](/system-variables.md) -- [TiDB 4.0.0-rc.1 Release Notes](/releases/release-4.0.0-rc.1.md) +- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tidb_wait_split_region_finish +### tidb_txn_entry_size_limit Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [System Variables](/system-variables.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [Troubleshoot TiDB Lightning](/tidb-lightning/troubleshoot-tidb-lightning.md) +- [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) -### tidb_wait_split_region_timeout +### tidb_txn_mode Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Optimistic Transactions and Pessimistic Transactions](/develop/dev-guide-optimistic-and-pessimistic-transaction.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Configuration File](/tidb-configuration-file.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [Transactions](/transaction-overview.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) +- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) +- [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) -### tidb_window_concurrency +### tidb_use_plan_baselines Referenced in: -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [CREATE [GLOBAL|SESSION] BINDING](/sql-statements/sql-statement-create-binding.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -### tidb_window_pipelined_threshold +### tidb_wait_split_region_finish Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Split Region](/sql-statements/sql-statement-split-region.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB 3.0.1 Release Notes](/releases/release-3.0.1.md) -### tidb_window_pipelined_threshold_size +### tidb_wait_split_region_timeout Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Split Region](/sql-statements/sql-statement-split-region.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -### tidb_window_size +### tidb_window_concurrency Referenced in: +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) ### tiflash_fastscan Referenced in: -- [Basic Features](/basic-features.md) -- [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) - [System Variables](/system-variables.md) -- [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) -- [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) -- [Use FastScan to Accelerate TiFlash Queries](/tiflash/use-fastscan.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [Use FastScan](/tiflash/use-fastscan.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tiflash_fine_grained_shuffle_batch_size @@ -2862,37 +4198,37 @@ Referenced in: - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tiflash_mem_quota_query_per_node +### tiflash_hashagg_preaggregation_mode Referenced in: - [System Variables](/system-variables.md) -- [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) -- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -### tiflash_query_spill_ratio +### tiflash_mem_quota_query_per_node Referenced in: - [System Variables](/system-variables.md) -- [TiFlash Disk Spill](/tiflash/tiflash-spill-disk.md) +- [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -### tiflash_replica_read +### tiflash_query_spill_ratio Referenced in: -- [Basic Features](/basic-features.md) -- [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) - [System Variables](/system-variables.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) +- [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) -### tiflash_hashagg_preaggregation_mode +### tiflash_replica_read Referenced in: +- [TiDB Features](/basic-features.md) - [System Variables](/system-variables.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tikv_client_read_timeout @@ -2906,62 +4242,60 @@ Referenced in: Referenced in: -- [Configure Time Zone](/configure-time-zone.md) +- [Time Zone Support](/configure-time-zone.md) - [Date and Time Types](/data-type-date-and-time.md) -- [Prepared Plan Cache](/sql-prepared-plan-cache.md) -- [SHOW VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) +- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) -### timestamp +### transaction_isolation Referenced in: -- [Analyze Slow Queries](/analyze-slow-queries.md) -- [Back up and Restore a Snapshot of TiDB Cluster Data](/br/br-snapshot-manual.md) -- [Back up and Restore Incremental Data](/br/br-incremental-guide.md) -- [Dumpling Overview](/dumpling-overview.md) -- [Log Redaction](/log-redaction.md) -- [Partitioned Table](/partitioned-table.md) -- [Point-in-Time Recovery](/br/br-pitr-manual.md) +- [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) +- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) +- [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) - [System Variables](/system-variables.md) -- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) -- [Time Service Overview](/tso.md) -- [Time To Live (TTL)](/time-to-live.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -### transaction_isolation +### tx_isolation Referenced in: -- [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) +- [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) - [System Variables](/system-variables.md) -- [Third-Party Tool Compatibility](/develop/dev-guide-third-party-tools-compatibility.md) -- [TiDB 6.0.0-DMR Release Notes](/releases/release-6.0.0-dmr.md) -### tx_isolation +### tx_isolation_one_shot + +Referenced in: + +- [System Variables](/system-variables.md) + +### tx_read_ts Referenced in: -- [Performance Tuning Package](/performance-tuning-practices.md) - [System Variables](/system-variables.md) ### txn_scope Referenced in: -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Resource Control](/tidb-resource-control.md) - [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) +- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) ### validate_password.check_user_name Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.dictionary @@ -2969,9 +4303,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) +- [TiDB Password Management](/password-management.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) -- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.enable @@ -2979,10 +4313,10 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Password Management](/password-management.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) -- [TiDB Password Management](/password-management.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.length @@ -2990,9 +4324,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.mixed_case_count @@ -3000,9 +4334,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.number_count @@ -3010,9 +4344,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.policy @@ -3020,9 +4354,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.special_char_count @@ -3030,20 +4364,16 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) - [TiDB Password Management](/password-management.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -### version +### version_comment Referenced in: -- [Ecosystem Tool User Guide](/ecosystem-tool-user-guide.md) -- [Foreign Key](/foreign-key.md) - [System Variables](/system-variables.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -- [Upgrade Monitoring Services](/upgrade-monitoring-services.md) ### version_compile_machine @@ -3061,17 +4391,20 @@ Referenced in: Referenced in: -- [Best Practices for Java Applications](/best-practices/java-app-best-practices.md) +- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Limited SQL Features in TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [System Variables](/system-variables.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiKV Configuration File](/tikv-configuration-file.md) - [TiProxy Overview](/tiproxy/tiproxy-overview.md) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) -- [Troubleshoot Out of Memory Errors](/troubleshoot-tidb-oom.md) -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +- [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [TiDB 3.0.6 Release Notes](/releases/release-3.0.6.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) +- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) ### warning_count @@ -3084,5 +4417,6 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Window Functions](/functions-and-operators/window-functions.md) +- [System Variables](/system-variables.md) + From 46e7f94254554fbabc9e6d3b2455f579c6bda9d1 Mon Sep 17 00:00:00 2001 From: qiancai Date: Tue, 7 Jan 2025 18:39:52 +0800 Subject: [PATCH 14/24] Update system-variable-reference.md --- system-variable-reference.md | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 07a72643a84ff..5bb1c2c1acdd4 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -96,7 +96,7 @@ Referenced in: Referenced in: -- [AUTO_RANDOM New in v3.1.0](/auto-random.md) +- [AUTO_RANDOM](/auto-random.md) - [Insert Data](/develop/dev-guide-insert-data.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) @@ -248,7 +248,7 @@ Referenced in: Referenced in: - [AUTO_INCREMENT](/auto-increment.md) -- [AUTO_RANDOM New in v3.1.0](/auto-random.md) +- [AUTO_RANDOM](/auto-random.md) - [Error Codes and Troubleshooting](/error-codes.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) @@ -263,7 +263,7 @@ Referenced in: Referenced in: - [AUTO_INCREMENT](/auto-increment.md) -- [AUTO_RANDOM New in v3.1.0](/auto-random.md) +- [AUTO_RANDOM](/auto-random.md) - [Error Codes and Troubleshooting](/error-codes.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) @@ -513,7 +513,7 @@ Referenced in: Referenced in: -- [AUTO_RANDOM New in v3.1.0](/auto-random.md) +- [AUTO_RANDOM](/auto-random.md) - [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) - [Information Functions](/functions-and-operators/information-functions.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) @@ -4419,4 +4419,3 @@ Referenced in: - [Window Functions](/functions-and-operators/window-functions.md) - [System Variables](/system-variables.md) - From 7875e9af7b5c8faa0a84f126bd4f3346580a17b8 Mon Sep 17 00:00:00 2001 From: qiancai Date: Tue, 7 Jan 2025 19:01:01 +0800 Subject: [PATCH 15/24] fix broken links --- system-variable-reference.md | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 5bb1c2c1acdd4..09c5a2a56b649 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -773,11 +773,11 @@ Referenced in: - [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) - [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) -- [Get Started with TiDB + AI via Python](/vector-search-get-started-using-python.md) -- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search-integrate-with-jinaai-embedding.md) -- [Integrate Vector Search with LangChain](/vector-search-integrate-with-langchain.md) -- [Integrate Vector Search with LlamaIndex](/vector-search-integrate-with-llamaindex.md) -- [Integrate TiDB Vector Search with SQLAlchemy](/vector-search-integrate-with-sqlalchemy.md) +- [Get Started with TiDB + AI via Python](/vector-search/vector-search-get-started-using-python.md) +- [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search/vector-search-integrate-with-jinaai-embedding.md) +- [Integrate Vector Search with LangChain](/vector-search/vector-search-integrate-with-langchain.md) +- [Integrate Vector Search with LlamaIndex](/vector-search/vector-search-integrate-with-llamaindex.md) +- [Integrate TiDB Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) ### ssl_cert @@ -2243,8 +2243,6 @@ Referenced in: Referenced in: -- [TOC-tidb-cloud](/TOC-tidb-cloud.md) -- [TOC](/TOC.md) - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) - [Usage Scenarios of Stale Read](/stale-read.md) - [System Variables](/system-variables.md) @@ -3408,8 +3406,6 @@ Referenced in: Referenced in: -- [TOC-tidb-cloud](/TOC-tidb-cloud.md) -- [TOC](/TOC.md) - [Stale Read](/develop/dev-guide-use-stale-read.md) - [Usage Scenarios of Stale Read](/stale-read.md) - [System Variables](/system-variables.md) @@ -3747,8 +3743,6 @@ Referenced in: Referenced in: -- [TOC-tidb-cloud](/TOC-tidb-cloud.md) -- [TOC](/TOC.md) - [TiDB Features](/basic-features.md) - [Cached Tables](/cached-tables.md) - [Use Dumpling to Export Data](/dumpling-overview.md) @@ -4419,3 +4413,4 @@ Referenced in: - [Window Functions](/functions-and-operators/window-functions.md) - [System Variables](/system-variables.md) + From 53e5f77d45d113d4a0efd1e9d31a9113e954b15d Mon Sep 17 00:00:00 2001 From: qiancai Date: Wed, 8 Jan 2025 09:06:32 +0800 Subject: [PATCH 16/24] remove references that are not in TOC.md or TOC-tidb-cloud.md --- system-variable-reference.md | 1065 +++++++++++++--------------------- 1 file changed, 395 insertions(+), 670 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 09c5a2a56b649..25c0d17392c67 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -14,84 +14,6 @@ This document lists all TiDB system variables and the files that reference them ## Variable reference -### `tidb_enable_fast_create_table` - -Referenced in: - -- [TiDB Accelerated Table Creation](/accelerated-table-creation.md) -- [System Variables](/system-variables.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - -### `tidb_enable_inl_join_inner_multi_pattern` - -Referenced in: - -- [Optimizer Hints](/optimizer-hints.md) -- [System Variables](/system-variables.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - -### `tidb_enable_row_level_checksum` - -Referenced in: - -- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) -- [System Variables](/system-variables.md) -- [TiCDC Data Integrity Validation for Single-Row Data](/ticdc/ticdc-integrity-check.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - -### `tidb_load_binding_timeout` - -Referenced in: - -- [System Variables](/system-variables.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - -### `tidb_lock_unchanged_keys` - -Referenced in: - -- [System Variables](/system-variables.md) -- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) -- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) - -### `tidb_low_resolution_tso_update_interval` - -Referenced in: - -- [System Variables](/system-variables.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - -### `tidb_opt_derive_topn` - -Referenced in: - -- [System Variables](/system-variables.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - -### `tidb_plan_cache_invalidation_on_fresh_stats` - -Referenced in: - -- [System Variables](/system-variables.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - -### `tidb_plan_cache_max_plan_size` - -Referenced in: - -- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) -- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - ### allow_auto_random_explicit_insert Referenced in: @@ -99,8 +21,8 @@ Referenced in: - [AUTO_RANDOM](/auto-random.md) - [Insert Data](/develop/dev-guide-insert-data.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [System Variables](/system-variables.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) ### authentication_ldap_sasl_auth_method_name @@ -249,11 +171,11 @@ Referenced in: - [AUTO_INCREMENT](/auto-increment.md) - [AUTO_RANDOM](/auto-random.md) +- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) - [Error Codes and Troubleshooting](/error-codes.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [System Variables](/system-variables.md) -- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) @@ -264,11 +186,11 @@ Referenced in: - [AUTO_INCREMENT](/auto-increment.md) - [AUTO_RANDOM](/auto-random.md) +- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) - [Error Codes and Troubleshooting](/error-codes.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [System Variables](/system-variables.md) -- [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) +- [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 3.0.9 Release Notes](/releases/release-3.0.9.md) @@ -278,6 +200,7 @@ Referenced in: Referenced in: - [Non-Transactional DML Statements](/non-transactional-dml.md) +- [System Variables](/system-variables.md) - [Transactions](/transaction-overview.md) ### block_encryption_mode @@ -293,12 +216,12 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [GBK](/character-set-gbk.md) -- [Views](/develop/dev-guide-use-views.md) -- [Use Dumpling to Export Data](/dumpling-overview.md) -- [VIEWS](/information-schema/information-schema-views.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) +- [VIEWS](/information-schema/information-schema-views.md) - [Views](/views.md) +- [Views](/develop/dev-guide-use-views.md) ### character_set_connection @@ -306,9 +229,9 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [GBK](/character-set-gbk.md) -- [Use Dumpling to Export Data](/dumpling-overview.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) - [System Variables](/system-variables.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) ### character_set_database @@ -342,11 +265,11 @@ Referenced in: Referenced in: - [Character Set and Collation](/character-set-and-collation.md) -- [Views](/develop/dev-guide-use-views.md) - [String Functions](/functions-and-operators/string-functions.md) -- [VIEWS](/information-schema/information-schema-views.md) - [System Variables](/system-variables.md) +- [VIEWS](/information-schema/information-schema-views.md) - [Views](/views.md) +- [Views](/develop/dev-guide-use-views.md) ### collation_database @@ -384,9 +307,9 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) @@ -405,8 +328,8 @@ Referenced in: Referenced in: -- [TiDB Password Management](/password-management.md) - [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### default_week_format @@ -437,11 +360,11 @@ Referenced in: Referenced in: -- [SQL FAQs](/faq/sql-faq.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) - [TiCDC Alert Rules](/ticdc/ticdc-alert-rules.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 3.1 Beta.1 Release Notes](/releases/release-3.1.0-beta.1.md) - [TiDB 3.0.0 Beta.1 Release Notes](/releases/release-3.0.0-beta.1.md) @@ -492,8 +415,8 @@ Referenced in: Referenced in: -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [System Variables](/system-variables.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiKV Configuration File](/tikv-configuration-file.md) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [TiDB 3.0.6 Release Notes](/releases/release-3.0.6.md) @@ -502,10 +425,10 @@ Referenced in: Referenced in: -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) @@ -516,8 +439,8 @@ Referenced in: - [AUTO_RANDOM](/auto-random.md) - [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) - [Information Functions](/functions-and-operators/information-functions.md) -- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 3.1 RC Release Notes](/releases/release-3.1.0-rc.md) @@ -553,12 +476,12 @@ Referenced in: Referenced in: -- [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) -- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [System Variables](/system-variables.md) +- [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) @@ -573,9 +496,9 @@ Referenced in: - [Integrate TiDB with ProxySQL](/develop/dev-guide-proxysql-integration.md) - [Modify Configuration Dynamically](/dynamic-config.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [System Variables](/system-variables.md) - [Precheck Errors, Migration Errors, and Alerts for Data Migration](https://docs.pingcap.com/tidbcloud/tidb-cloud-dm-precheck-and-troubleshooting) +- [System Variables](/system-variables.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Configuration File](/tidb-configuration-file.md) ### max_execution_time @@ -584,12 +507,12 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [SQL FAQs](/faq/sql-faq.md) - [Optimizer Hints](/optimizer-hints.md) +- [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) @@ -624,28 +547,28 @@ Referenced in: Referenced in: -- [`mysql` Schema](/mysql-schema/mysql-schema.md) -- [TiDB Password Management](/password-management.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) +- [`mysql` Schema](/mysql-schema/mysql-schema.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### password_reuse_interval Referenced in: -- [TiDB Password Management](/password-management.md) - [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### pd_enable_follower_handle_region Referenced in: -- [TiDB Features](/basic-features.md) - [System Variables](/system-variables.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB Features](/basic-features.md) - [Tune Region Performance](/tune-region-performance.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -653,27 +576,15 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### plugin_load Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - -### rand_seed1 - -Referenced in: - -- [System Variables](/system-variables.md) - -### rand_seed2 - -Referenced in: - - [System Variables](/system-variables.md) ### require_secure_transport @@ -681,10 +592,10 @@ Referenced in: Referenced in: - [Enable TLS between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [System Variables](/system-variables.md) - [TLS Connections to TiDB Cloud Dedicated](https://docs.pingcap.com/tidbcloud/tidb-cloud-tls-connect-to-dedicated) +- [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) @@ -695,32 +606,32 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) ### sql_mode Referenced in: -- [Date and Time Types](/data-type-date-and-time.md) -- [Unstable Result Set](/develop/dev-guide-unstable-result-set.md) -- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [SQL FAQs](/faq/sql-faq.md) - [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) +- [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) +- [Date and Time Types](/data-type-date-and-time.md) - [Miscellaneous Functions](/functions-and-operators/miscellaneous-functions.md) -- [Precision Math](/functions-and-operators/precision-math.md) - [Partitioning](/partitioned-table.md) +- [Precision Math](/functions-and-operators/precision-math.md) - [Privilege Management](/privilege-management.md) -- [Schema Object Names](/schema-object-names.md) -- [SQL Mode](/sql-mode.md) -- [`SET [GLOBAL|SESSION] `](/sql-statements/sql-statement-set-variable.md) - [SHOW ERRORS](/sql-statements/sql-statement-show-errors.md) - [SHOW WARNINGS](/sql-statements/sql-statement-show-warnings.md) +- [SQL FAQs](/faq/sql-faq.md) +- [SQL Mode](/sql-mode.md) +- [Schema Object Names](/schema-object-names.md) - [System Variables](/system-variables.md) - [TiDB Lightning FAQs](/tidb-lightning/tidb-lightning-faq.md) +- [TiDB User Account Management](/user-account-management.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) +- [Unstable Result Set](/develop/dev-guide-unstable-result-set.md) - [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) -- [TiDB User Account Management](/user-account-management.md) +- [`SET [GLOBAL|SESSION] `](/sql-statements/sql-statement-set-variable.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -761,23 +672,23 @@ Referenced in: Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [Connect to TiDB with node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md) -- [Connect to TiDB with mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md) -- [Connect to TiDB with Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) -- [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) - [Connect to TiDB with Django](/develop/dev-guide-sample-application-python-django.md) - [Connect to TiDB with MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) -- [Connect to TiDB with peewee](/develop/dev-guide-sample-application-python-peewee.md) +- [Connect to TiDB with Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) - [Connect to TiDB with PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) - [Connect to TiDB with SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) +- [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) +- [Connect to TiDB with mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md) - [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) -- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) -- [System Variables](/system-variables.md) +- [Connect to TiDB with node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md) +- [Connect to TiDB with peewee](/develop/dev-guide-sample-application-python-peewee.md) - [Get Started with TiDB + AI via Python](/vector-search/vector-search-get-started-using-python.md) - [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search/vector-search-integrate-with-jinaai-embedding.md) +- [Integrate TiDB Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) - [Integrate Vector Search with LangChain](/vector-search/vector-search-integrate-with-langchain.md) - [Integrate Vector Search with LlamaIndex](/vector-search/vector-search-integrate-with-llamaindex.md) -- [Integrate TiDB Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) +- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) +- [System Variables](/system-variables.md) ### ssl_cert @@ -799,8 +710,8 @@ Referenced in: Referenced in: -- [Time Zone Support](/configure-time-zone.md) - [System Variables](/system-variables.md) +- [Time Zone Support](/configure-time-zone.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) ### tidb_adaptive_closest_read_threshold @@ -816,7 +727,6 @@ Referenced in: Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) @@ -833,16 +743,15 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Features](/basic-features.md) ### tidb_allow_mpp Referenced in: -- [TiDB TPC-H Performance Test Report -- TiDB v5.4 MPP mode vs. Greenplum 6.15.0 and Apache Spark 3.1.1](/benchmark/v5.4-performance-benchmarking-with-tpch.md) - [Explain Statements in the MPP Mode](/explain-mpp.md) - [Explore HTAP](/explore-htap.md) - [System Variables](/system-variables.md) @@ -875,9 +784,9 @@ Referenced in: Referenced in: - [How to Run CH-benCHmark Test on TiDB](/benchmark/benchmark-tidb-using-ch.md) +- [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) - [System Variables](/system-variables.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -- [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_analyze_distsql_scan_concurrency @@ -913,11 +822,11 @@ Referenced in: Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) - [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) -- [SHOW ANALYZE STATUS](/sql-statements/sql-statement-show-analyze-status.md) - [Introduction to Statistics](/statistics.md) +- [SHOW ANALYZE STATUS](/sql-statements/sql-statement-show-analyze-status.md) - [System Variables](/system-variables.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -939,8 +848,8 @@ Referenced in: Referenced in: -- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Introduction to Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) @@ -959,14 +868,14 @@ Referenced in: Referenced in: -- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) -- [SQL FAQs](/faq/sql-faq.md) +- [Introduction to Statistics](/statistics.md) - [SHOW STATS_HEALTHY](/sql-statements/sql-statement-show-stats-healthy.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [Introduction to Statistics](/statistics.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 2.0.1 Release Notes](/releases/release-2.0.1.md) @@ -974,8 +883,8 @@ Referenced in: Referenced in: -- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Introduction to Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) @@ -1027,12 +936,6 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) -### tidb_batch_pending_tiflash_count - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_broadcast_join_threshold_count Referenced in: @@ -1065,9 +968,8 @@ Referenced in: Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Introduction to Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) @@ -1079,8 +981,8 @@ Referenced in: Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) - [TiDB 4.0 RC.1 Release Notes](/releases/release-4.0.0-rc.1.md) @@ -1089,8 +991,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_check_mb4_value_in_utf8 @@ -1098,11 +1000,11 @@ Referenced in: Referenced in: - [Character Set and Collation](/character-set-and-collation.md) -- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) +- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) ### tidb_checksum_table_concurrency @@ -1126,18 +1028,18 @@ Referenced in: Referenced in: -- [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_config Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) @@ -1145,16 +1047,16 @@ Referenced in: Referenced in: +- [COMMIT](/sql-statements/sql-statement-commit.md) - [Constraints](/constraints.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [Modify Configuration Dynamically](/dynamic-config.md) - [Error Codes and Troubleshooting](/error-codes.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [COMMIT](/sql-statements/sql-statement-commit.md) +- [Modify Configuration Dynamically](/dynamic-config.md) - [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Transactions](/transaction-overview.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -1166,12 +1068,12 @@ Referenced in: Referenced in: - [Constraints](/constraints.md) -- [Modify Configuration Dynamically](/dynamic-config.md) - [Error Codes and Troubleshooting](/error-codes.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) +- [Modify Configuration Dynamically](/dynamic-config.md) - [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1190,22 +1092,22 @@ Referenced in: Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) -- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) -- [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) -- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [TimeStamp Oracle (TSO) in TiDB](/tso.md) +- [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) ### tidb_ddl_disk_quota Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1213,16 +1115,16 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [TiDB Environment and System Configuration Check](/check-before-deployment.md) -- [TiDB Software and Hardware Requirements](/hardware-and-software-requirements.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [TiDB Environment and System Configuration Check](/check-before-deployment.md) +- [TiDB Features](/basic-features.md) +- [TiDB Software and Hardware Requirements](/hardware-and-software-requirements.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1237,18 +1139,18 @@ Referenced in: Referenced in: -- [SQL FAQs](/faq/sql-faq.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) ### tidb_ddl_flashback_concurrency Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1256,19 +1158,18 @@ Referenced in: Referenced in: -- [Interaction Test on Online Workloads and `ADD INDEX` Operations](/benchmark/online-workloads-and-add-index-operations.md) -- [Execution Principles and Best Practices of DDL Statements](/ddl-introduction.md) -- [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) -- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) -- [SQL FAQs](/faq/sql-faq.md) - [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [Execution Principles and Best Practices of DDL Statements](/ddl-introduction.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) @@ -1288,11 +1189,11 @@ Referenced in: Referenced in: -- [SQL FAQs](/faq/sql-faq.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) @@ -1301,19 +1202,18 @@ Referenced in: Referenced in: -- [Interaction Test on Online Workloads and `ADD INDEX` Operations](/benchmark/online-workloads-and-add-index-operations.md) -- [Execution Principles and Best Practices of DDL Statements](/ddl-introduction.md) -- [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) -- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) -- [SQL FAQs](/faq/sql-faq.md) - [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [Execution Principles and Best Practices of DDL Statements](/ddl-introduction.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1331,13 +1231,10 @@ Referenced in: Referenced in: -- [TiDB Sysbench Performance Test Report -- v4.0 vs. v3.0](/benchmark/benchmark-sysbench-v4-vs-v3.md) - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) -- [TiDB Sysbench Performance Test Report -- v3.0 vs. v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) -- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [Transactions](/transaction-overview.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -1351,20 +1248,19 @@ Referenced in: Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [TiDB Memory Control](/configure-memory-usage.md) -- [Use Dumpling to Export Data](/dumpling-overview.md) -- [SQL FAQs](/faq/sql-faq.md) -- [SLOW_QUERY](/information-schema/information-schema-slow-query.md) -- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Introduction to Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SLOW_QUERY](/information-schema/information-schema-slow-query.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-tpcc) +- [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_dml_batch_size @@ -1383,12 +1279,12 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [TiDB Memory Control](/configure-memory-usage.md) +- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [Identify Expensive Queries](/identify-expensive-queries.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [TiDB Features](/basic-features.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1399,26 +1295,10 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -1433,26 +1313,10 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) - [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) @@ -1474,11 +1338,11 @@ Referenced in: Referenced in: -- [SQL FAQs](/faq/sql-faq.md) -- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [SQL FAQs](/faq/sql-faq.md) +- [System Variables](/system-variables.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1520,19 +1384,19 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_enable_check_constraint Referenced in: -- [Constraints](/constraints.md) - [CHECK\_CONSTRAINTS](/information-schema/information-schema-check-constraints.md) -- [TIDB\_CHECK\_CONSTRAINTS](/information-schema/information-schema-tidb-check-constraints.md) +- [Constraints](/constraints.md) - [System Variables](/system-variables.md) +- [TIDB\_CHECK\_CONSTRAINTS](/information-schema/information-schema-tidb-check-constraints.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) ### tidb_enable_chunk_rpc @@ -1546,28 +1410,12 @@ Referenced in: Referenced in: -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [TiDB Backup & Restore Overview](/br/backup-and-restore-overview.md) - [Clustered Indexes](/clustered-indexes.md) - [Create a Table](/develop/dev-guide-create-table.md) -- [TiDB Database Schema Design Overview](/develop/dev-guide-schema-design-overview.md) - [System Variables](/system-variables.md) +- [TiDB Backup & Restore Overview](/br/backup-and-restore-overview.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Database Schema Design Overview](/develop/dev-guide-schema-design-overview.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -1577,12 +1425,12 @@ Referenced in: Referenced in: -- [Modify Configuration Dynamically](/dynamic-config.md) - [Identify Slow Queries](/identify-slow-queries.md) -- [TIDB_INDEX_USAGE](/information-schema/information-schema-tidb-index-usage.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TIDB_INDEX_USAGE](/information-schema/information-schema-tidb-index-usage.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -1602,9 +1450,9 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) - [Topology Configuration File for TiDB Deployment Using TiUP](/tiup/tiup-cluster-topology-reference.md) @@ -1612,13 +1460,13 @@ Referenced in: Referenced in: -- [TiDB Smooth Upgrade](/smooth-upgrade-tidb.md) - [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [System Variables](/system-variables.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB Global Sort](/tidb-global-sort.md) +- [TiDB Smooth Upgrade](/smooth-upgrade-tidb.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -1628,13 +1476,13 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [TiDB Dashboard User Management](/dashboard/dashboard-user.md) - [BACKUP](/sql-statements/sql-statement-backup.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Dashboard User Management](/dashboard/dashboard-user.md) +- [TiDB Features](/basic-features.md) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) ### tidb_enable_exchange_partition @@ -1657,22 +1505,32 @@ Referenced in: Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [System Variables](/system-variables.md) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) -- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_fast_analyze Referenced in: -- [TiDB Features](/basic-features.md) - [Introduction to Extended Statistics](/extended-statistics.md) - [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) +### tidb_enable_fast_create_table + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB Accelerated Table Creation](/accelerated-table-creation.md) +- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + ### tidb_enable_fast_table_check Referenced in: @@ -1692,8 +1550,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_enable_global_index @@ -1709,16 +1567,16 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_historical_stats Referenced in: -- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -1733,43 +1591,42 @@ Referenced in: Referenced in: -- [Index Selection](/choose-index.md) - [Explain Statements Using Index Merge](/explain-index-merge.md) +- [Index Selection](/choose-index.md) - [Optimizer Hints](/optimizer-hints.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) -### tidb_enable_index_merge_join +### tidb_enable_inl_join_inner_multi_pattern Referenced in: +- [Optimizer Hints](/optimizer-hints.md) - [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_instance_plan_cache Referenced in: -- [TiDB Features](/basic-features.md) - [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -### tidb_enable_lazy_cursor_fetch - -Referenced in: - -- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) -- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [System Variables](/system-variables.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - -### tidb_enable_legacy_instance_scope +### tidb_enable_lazy_cursor_fetch Referenced in: +- [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) +- [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [System Variables](/system-variables.md) +- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_enable_list_partition @@ -1784,8 +1641,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) ### tidb_enable_metadata_lock @@ -1845,10 +1702,10 @@ Referenced in: Referenced in: - [Information Functions](/functions-and-operators/information-functions.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [SELECT](/sql-statements/sql-statement-select.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -1912,8 +1769,8 @@ Referenced in: Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) - [System Variables](/system-variables.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1925,8 +1782,8 @@ Referenced in: Referenced in: -- [Window Functions](/functions-and-operators/window-functions.md) - [System Variables](/system-variables.md) +- [Window Functions](/functions-and-operators/window-functions.md) ### tidb_enable_plan_cache_for_param_limit @@ -1946,16 +1803,16 @@ Referenced in: Referenced in: -- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_enable_plan_replayer_continuous_capture Referenced in: -- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_prepared_plan_cache @@ -1963,10 +1820,10 @@ Referenced in: Referenced in: - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) -- [TiDB Dashboard FAQs](/dashboard/dashboard-faq.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB Dashboard FAQs](/dashboard/dashboard-faq.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -1992,8 +1849,8 @@ Referenced in: Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) - [System Variables](/system-variables.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -2001,16 +1858,16 @@ Referenced in: Referenced in: -- [Error Codes and Troubleshooting](/error-codes.md) - [ALTER RESOURCE GROUP](/sql-statements/sql-statement-alter-resource-group.md) -- [`CALIBRATE RESOURCE`](/sql-statements/sql-statement-calibrate-resource.md) - [CREATE RESOURCE GROUP](/sql-statements/sql-statement-create-resource-group.md) - [DROP RESOURCE GROUP](/sql-statements/sql-statement-drop-resource-group.md) +- [Error Codes and Troubleshooting](/error-codes.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SET RESOURCE GROUP](/sql-statements/sql-statement-set-resource-group.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) - [TiKV Configuration File](/tikv-configuration-file.md) +- [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) +- [`CALIBRATE RESOURCE`](/sql-statements/sql-statement-calibrate-resource.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -2023,24 +1880,35 @@ Referenced in: - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +### tidb_enable_row_level_checksum + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiCDC Data Integrity Validation for Single-Row Data](/ticdc/ticdc-integrity-check.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) +- [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + ### tidb_enable_shared_lock_promotion Referenced in: -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [System Variables](/system-variables.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_enable_slow_log Referenced in: -- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) -- [Modify Configuration Dynamically](/dynamic-config.md) - [Identify Slow Queries](/identify-slow-queries.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_enable_stats_owner @@ -2055,11 +1923,11 @@ Referenced in: Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) ### tidb_enable_strict_double_type_check @@ -2104,30 +1972,30 @@ Referenced in: Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) -- [TiDB Memory Control](/configure-memory-usage.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [Enable Encryption for Disk Spill](/enable-disk-spill-encrypt.md) - [Explain Statements That Use Joins](/explain-joins.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Memory Control](/configure-memory-usage.md) ### tidb_enable_top_sql Referenced in: -- [TiDB Dashboard Top SQL Page](/dashboard/top-sql.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Dashboard Top SQL Page](/dashboard/top-sql.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_enable_tso_follower_proxy Referenced in: -- [TiDB Features](/basic-features.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [PD Microservices](/pd-microservices.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Features](/basic-features.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -2155,9 +2023,9 @@ Referenced in: Referenced in: -- [Window Functions](/functions-and-operators/window-functions.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Window Functions](/functions-and-operators/window-functions.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) ### tidb_enforce_mpp @@ -2165,12 +2033,12 @@ Referenced in: Referenced in: - [Explore HTAP](/explore-htap.md) -- [Usage Scenarios of Stale Read](/stale-read.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [Troubleshoot a TiFlash Cluster](/tiflash/troubleshoot-tiflash.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [Usage Scenarios of Stale Read](/stale-read.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 5.4.2 Release Notes](/releases/release-5.4.2.md) @@ -2182,8 +2050,8 @@ Referenced in: Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) @@ -2191,24 +2059,24 @@ Referenced in: Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) ### tidb_evolve_plan_task_max_time Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) ### tidb_evolve_plan_task_start_time Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) ### tidb_executor_concurrency @@ -2225,11 +2093,11 @@ Referenced in: Referenced in: -- [Modify Configuration Dynamically](/dynamic-config.md) - [Identify Expensive Queries](/identify-expensive-queries.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_expensive_txn_time_threshold @@ -2244,21 +2112,21 @@ Referenced in: Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) -- [Usage Scenarios of Stale Read](/stale-read.md) +- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [System Variables](/system-variables.md) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) -- [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) +- [Usage Scenarios of Stale Read](/stale-read.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_force_priority Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) -- [SQL FAQs](/faq/sql-faq.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) - [TiDB 2.1 RC3 Release Notes](/releases/release-2.1-rc.3.md) @@ -2268,8 +2136,8 @@ Referenced in: Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -2279,12 +2147,12 @@ Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) - [Garbage Collection Configuration](/garbage-collection-configuration.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Migrate Data from TiDB to MySQL-compatible Databases](/migrate-from-tidb-to-mysql.md) - [Migrate from One TiDB Cluster to Another TiDB Cluster](/migrate-from-tidb-to-tidb.md) +- [Migrate from TiDB Self-Managed to TiDB Cloud](https://docs.pingcap.com/tidbcloud/migrate-from-op-tidb) - [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Migrate from TiDB Self-Managed to TiDB Cloud](https://docs.pingcap.com/tidbcloud/migrate-from-op-tidb) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -2292,24 +2160,24 @@ Referenced in: Referenced in: -- [TiDB Incremental Backup and Restore Guide](/br/br-incremental-guide.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [Stale Read](/develop/dev-guide-use-stale-read.md) -- [Use Dumpling to Export Data](/dumpling-overview.md) - [Error Codes and Troubleshooting](/error-codes.md) -- [SQL FAQs](/faq/sql-faq.md) -- [Garbage Collection Configuration](/garbage-collection-configuration.md) -- [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) - [FLASHBACK DATABASE](/sql-statements/sql-statement-flashback-database.md) - [FLASHBACK TABLE](/sql-statements/sql-statement-flashback-table.md) -- [System Variables](/system-variables.md) -- [TiCDC FAQs](/ticdc/ticdc-faq.md) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) +- [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) - [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) +- [SQL FAQs](/faq/sql-faq.md) - [Sink to MySQL](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-mysql) - [Sink to TiDB Cloud](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-tidb-cloud) +- [Stale Read](/develop/dev-guide-use-stale-read.md) +- [System Variables](/system-variables.md) +- [TiCDC FAQs](/ticdc/ticdc-faq.md) +- [TiDB Incremental Backup and Restore Guide](/br/br-incremental-guide.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiKV MVCC In-Memory Engine](/tikv-in-memory-engine.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -2318,8 +2186,8 @@ Referenced in: Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_gc_run_interval @@ -2327,19 +2195,19 @@ Referenced in: Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) ### tidb_gc_scan_lock_mode Referenced in: -- [TiDB Features](/basic-features.md) -- [Garbage Collection Configuration](/garbage-collection-configuration.md) - [GC Overview](/garbage-collection-overview.md) -- [System Variables](/system-variables.md) +- [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -2348,20 +2216,20 @@ Referenced in: Referenced in: - [Configuration Options](/command-line-flags-for-tidb-configuration.md) -- [TiDB Data Migration FAQs](/dm/dm-faq.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_generate_binary_plan Referenced in: -- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_gogc_tuner_max_value @@ -2384,8 +2252,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) @@ -2395,38 +2263,15 @@ Referenced in: Referenced in: -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - -### tidb_hash_exchange_with_new_collation - -Referenced in: - - [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) ### tidb_hash_join_concurrency Referenced in: - [Analyze Slow Queries](/analyze-slow-queries.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [Best Practices for Three-Node Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [Explain Statements That Use Joins](/explain-joins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) @@ -2444,26 +2289,6 @@ Referenced in: Referenced in: -- [TiDB Sysbench Performance Test Report -- v4.0 vs. v3.0](/benchmark/benchmark-sysbench-v4-vs-v3.md) -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report -- v3.0 vs. v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) @@ -2471,26 +2296,6 @@ Referenced in: Referenced in: -- [TiDB Sysbench Performance Test Report -- v4.0 vs. v3.0](/benchmark/benchmark-sysbench-v4-vs-v3.md) -- [TiDB Sysbench Performance Test Report -- v5.0 vs. v4.0](/benchmark/benchmark-sysbench-v5-vs-v4.md) -- [TiDB Sysbench Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/benchmark-sysbench-v5.1.0-vs-v5.0.2.md) -- [TiDB Sysbench Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/benchmark-sysbench-v5.2.0-vs-v5.1.1.md) -- [TiDB Sysbench Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/benchmark-sysbench-v5.3.0-vs-v5.2.2.md) -- [TiDB Sysbench Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/benchmark-sysbench-v5.4.0-vs-v5.3.0.md) -- [TiDB Sysbench Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/benchmark-sysbench-v6.0.0-vs-v5.4.0.md) -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB Sysbench Performance Test Report -- v3.0 vs. v2.1](/benchmark/v3.0-performance-benchmarking-with-sysbench.md) -- [TiDB TPC-C Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB TPC-C Performance Test Report -- v5.0 vs. v4.0](/benchmark/v5.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.1.0 vs. v5.0.2](/benchmark/v5.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.2.0 vs. v5.1.1](/benchmark/v5.2-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.3.0 vs. v5.2.2](/benchmark/v5.3-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v5.4.0 vs. v5.3.0](/benchmark/v5.4-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.0.0 vs. v5.4.0](/benchmark/v6.0-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) @@ -2505,11 +2310,11 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [System Variables](/system-variables.md) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Features](/basic-features.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) ### tidb_ignore_prepared_cache_close_stmt @@ -2542,16 +2347,14 @@ Referenced in: Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) ### tidb_index_lookup_join_concurrency Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [Best Practices for Three-Node Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [Explain Statements That Use Joins](/explain-joins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) @@ -2561,9 +2364,9 @@ Referenced in: Referenced in: -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) ### tidb_index_merge_intersection_concurrency @@ -2576,10 +2379,10 @@ Referenced in: Referenced in: -- [TiDB Best Practices](/best-practices/tidb-best-practices.md) -- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Introduction to Statistics](/statistics.md) +- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) @@ -2614,30 +2417,21 @@ Referenced in: Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) -- [TiDB TPC-H Performance Test Report -- TiDB v5.4 MPP mode vs. Greenplum 6.15.0 and Apache Spark 3.1.1](/benchmark/v5.4-performance-benchmarking-with-tpch.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [Use an HTAP Cluster](https://docs.pingcap.com/tidbcloud/use-htap-cluster) - [TiFlash Compatibility Notes](/tiflash/tiflash-compatibility.md) - [Use FastScan](/tiflash/use-fastscan.md) - [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) -- [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) -### tidb_last_ddl_info - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_last_plan_replayer_token Referenced in: -- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [System Variables](/system-variables.md) +- [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_last_query_info @@ -2649,27 +2443,36 @@ Referenced in: - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) -### tidb_last_txn_info +### tidb_load_based_replica_read_threshold Referenced in: - [System Variables](/system-variables.md) +- [Troubleshoot Hotspot Issues](/troubleshoot-hot-spot-issues.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -### tidb_load_based_replica_read_threshold +### tidb_load_binding_timeout Referenced in: - [System Variables](/system-variables.md) -- [Troubleshoot Hotspot Issues](/troubleshoot-hot-spot-issues.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) -### tidb_log_file_max_days +### tidb_lock_unchanged_keys Referenced in: - [System Variables](/system-variables.md) +- [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) +- [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) + +### tidb_log_file_max_days + +Referenced in: + - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_low_resolution_tso @@ -2685,6 +2488,13 @@ Referenced in: - [TiDB 3.0.0-rc.2 Release Notes](/releases/release-3.0.0-rc.2.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) +### tidb_low_resolution_tso_update_interval + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) + ### tidb_max_auto_analyze_time Referenced in: @@ -2723,8 +2533,8 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) @@ -2735,8 +2545,8 @@ Referenced in: Referenced in: -- [SQL FAQs](/faq/sql-faq.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) - [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) @@ -2752,10 +2562,10 @@ Referenced in: Referenced in: +- [Configure TiFlash](/tiflash/tiflash-configuration.md) - [Modify Configuration Dynamically](/dynamic-config.md) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) -- [Configure TiFlash](/tiflash/tiflash-configuration.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -2763,10 +2573,10 @@ Referenced in: Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) - [Non-Transactional DML Statements](/non-transactional-dml.md) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) +- [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -2783,12 +2593,6 @@ Referenced in: - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -### tidb_mem_quota_apply_cache - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_mem_quota_binding_cache Referenced in: @@ -2801,9 +2605,6 @@ Referenced in: Referenced in: -- [TiDB Documentation Contributing Guide](/CONTRIBUTING.md) -- [TiDB TPC-H Performance Test Report -- TiDB v5.4 MPP mode vs. Greenplum 6.15.0 and Apache Spark 3.1.1](/benchmark/v5.4-performance-benchmarking-with-tpch.md) -- [TiDB Memory Control](/configure-memory-usage.md) - [Enable Encryption for Disk Spill](/enable-disk-spill-encrypt.md) - [Error Codes and Troubleshooting](/error-codes.md) - [Explain Statements That Use Joins](/explain-joins.md) @@ -2814,6 +2615,7 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) @@ -2836,42 +2638,24 @@ Referenced in: - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 4.0.10 Release Notes](/releases/release-4.0.10.md) -### tidb_memory_debug_mode_alarm_ratio - -Referenced in: - -- [System Variables](/system-variables.md) - -### tidb_memory_debug_mode_min_heap_inuse - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_memory_usage_alarm_keep_record_num Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) - [System Variables](/system-variables.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_memory_usage_alarm_ratio Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -### tidb_merge_join_concurrency - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_merge_partition_stats_concurrency Referenced in: @@ -2885,19 +2669,19 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Metrics Schema](/metrics-schema.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_metric_query_step Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Metrics Schema](/metrics-schema.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_min_paging_size @@ -2906,19 +2690,13 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) -### tidb_mpp_store_fail_ttl - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_multi_statement_mode Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) -- [System Variables](/system-variables.md) - [Integrate TiDB Cloud with n8n](https://docs.pingcap.com/tidbcloud/integrate-tidbcloud-with-n8n) +- [System Variables](/system-variables.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.8 Release Notes](/releases/release-6.5.8.md) @@ -2957,8 +2735,8 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) - [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) @@ -2968,12 +2746,6 @@ Referenced in: - [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) - [TiDB 4.0 GA Release Notes](/releases/release-4.0-ga.md) -### tidb_opt_broadcast_cartesian_join - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_opt_concurrency_factor Referenced in: @@ -3012,6 +2784,15 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +### tidb_opt_derive_topn + +Referenced in: + +- [Derive TopN or Limit from Window Functions](/derive-topn-from-window.md) +- [System Variables](/system-variables.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) + ### tidb_opt_desc_factor Referenced in: @@ -3031,12 +2812,11 @@ Referenced in: Referenced in: - [Distinct Optimization](/agg-distinct-optimization.md) -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) ### tidb_opt_enable_correlation_adjustment @@ -3084,9 +2864,9 @@ Referenced in: Referenced in: -- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) -- [`EXPLAIN`](/sql-statements/sql-statement-explain.md) - [System Variables](/system-variables.md) +- [`EXPLAIN`](/sql-statements/sql-statement-explain.md) +- [`EXPLAIN` Walkthrough](/explain-walkthrough.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tidb_opt_fix_control @@ -3143,12 +2923,6 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -### tidb_opt_mpp_outer_join_fixed_build_side - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_opt_network_factor Referenced in: @@ -3238,12 +3012,6 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -### tidb_opt_tiflash_concurrency_factor - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_opt_use_invisible_indexes Referenced in: @@ -3257,9 +3025,9 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_optimizer_selectivity_level @@ -3305,17 +3073,33 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) +### tidb_plan_cache_invalidation_on_fresh_stats + +Referenced in: + +- [System Variables](/system-variables.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + +### tidb_plan_cache_max_plan_size + +Referenced in: + +- [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) +- [System Variables](/system-variables.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) + ### tidb_pprof_sql_cpu Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) ### tidb_pre_split_regions @@ -3345,10 +3129,6 @@ Referenced in: Referenced in: -- [TiDB Sysbench Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/benchmark-sysbench-v6.1.0-vs-v6.0.0.md) -- [TiDB Sysbench Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/benchmark-sysbench-v6.2.0-vs-v6.1.0.md) -- [TiDB TPC-C Performance Test Report -- v6.1.0 vs. v6.0.0](/benchmark/v6.1-performance-benchmarking-with-tpcc.md) -- [TiDB TPC-C Performance Test Report -- v6.2.0 vs. v6.1.0](/benchmark/v6.2-performance-benchmarking-with-tpcc.md) - [System Variables](/system-variables.md) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -3359,7 +3139,6 @@ Referenced in: Referenced in: -- [TiDB TPC-H Performance Test Report -- v4.0 vs. v3.0](/benchmark/v4.0-performance-benchmarking-with-tpch.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -3382,8 +3161,8 @@ Referenced in: - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) - [System Variables](/system-variables.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) @@ -3396,20 +3175,14 @@ Referenced in: - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -### tidb_read_consistency - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_read_staleness Referenced in: +- [Read Historical Data Using the `tidb_read_staleness` System Variable](/tidb-read-staleness.md) - [Stale Read](/develop/dev-guide-use-stale-read.md) -- [Usage Scenarios of Stale Read](/stale-read.md) - [System Variables](/system-variables.md) -- [Read Historical Data Using the `tidb_read_staleness` System Variable](/tidb-read-staleness.md) +- [Usage Scenarios of Stale Read](/stale-read.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -3417,10 +3190,10 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) @@ -3430,10 +3203,10 @@ Referenced in: - [Configuration Options](/command-line-flags-for-tidb-configuration.md) - [Identify Slow Queries](/identify-slow-queries.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Log Redaction](/log-redaction.md) - [Non-Transactional DML Statements](/non-transactional-dml.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) @@ -3460,14 +3233,14 @@ Referenced in: Referenced in: -- [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) - [Best Practices for Read-Only Storage Nodes](/best-practices/readonly-nodes.md) -- [Local Read under Three Data Centers Deployment](/best-practices/three-dc-local-read.md) -- [Follower Read](/develop/dev-guide-use-follower-read.md) - [Follower Read](/follower-read.md) +- [Follower Read](/develop/dev-guide-use-follower-read.md) +- [Local Read under Three Data Centers Deployment](/best-practices/three-dc-local-read.md) - [Optimizer Hints](/optimizer-hints.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3500,10 +3273,10 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Privilege Management](/privilege-management.md) -- [System Variables](/system-variables.md) - [Replicate Data to MySQL-compatible Databases](/ticdc/ticdc-sink-to-mysql.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) - [TiDB 5.3.1 Release Notes](/releases/release-5.3.1.md) @@ -3512,10 +3285,10 @@ Referenced in: Referenced in: -- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [TiDB Optimistic Transaction Model](/optimistic-transaction.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Transactions](/transaction-overview.md) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [TiDB 2.1 Beta Release Notes](/releases/release-2.1-beta.md) @@ -3525,9 +3298,9 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) ### tidb_runtime_filter_mode @@ -3551,10 +3324,10 @@ Referenced in: Referenced in: - [Highly Concurrent Write Best Practices](/best-practices/high-concurrency-best-practices.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.1.7 Release Notes](/releases/release-6.1.7.md) @@ -3582,13 +3355,13 @@ Referenced in: Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) -- [MEMORY_USAGE_OPS_HISTORY](/information-schema/information-schema-memory-usage-ops-history.md) -- [MEMORY_USAGE](/information-schema/information-schema-memory-usage.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [MEMORY_USAGE](/information-schema/information-schema-memory-usage.md) +- [MEMORY_USAGE_OPS_HISTORY](/information-schema/information-schema-memory-usage-ops-history.md) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -3605,18 +3378,18 @@ Referenced in: Referenced in: -- [TiDB Memory Control](/configure-memory-usage.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_server_memory_limit_sess_min_size Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3624,13 +3397,13 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [Configuration Options](/command-line-flags-for-tidb-configuration.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) +- [Configuration Options](/command-line-flags-for-tidb-configuration.md) +- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [System Variables](/system-variables.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [TiDB Features](/basic-features.md) - [TiDB Global Sort](/tidb-global-sort.md) -- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) @@ -3654,12 +3427,6 @@ Referenced in: - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -### tidb_shard_allocate_step - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_shard_row_id_bits Referenced in: @@ -3671,8 +3438,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) ### tidb_skip_ascii_check @@ -3685,11 +3452,11 @@ Referenced in: Referenced in: -- [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) -- [Transaction overview](/develop/dev-guide-transaction-overview.md) - [Error Codes and Troubleshooting](/error-codes.md) +- [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) +- [Transaction overview](/develop/dev-guide-transaction-overview.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) @@ -3708,25 +3475,25 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) +- [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) ### tidb_slow_log_threshold Referenced in: -- [Overview Page](/dashboard/dashboard-overview.md) -- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) -- [Modify Configuration Dynamically](/dynamic-config.md) -- [TiDB Deployment FAQs](/faq/deploy-and-maintain-faq.md) - [Identify Slow Queries](/identify-slow-queries.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [Modify Configuration Dynamically](/dynamic-config.md) +- [Overview Page](/dashboard/dashboard-overview.md) - [Quick Start with TiDB Self-Managed](/quick-start-with-tidb.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) +- [TiDB Deployment FAQs](/faq/deploy-and-maintain-faq.md) - [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) @@ -3735,26 +3502,26 @@ Referenced in: Referenced in: - [Identify Slow Queries](/identify-slow-queries.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_snapshot Referenced in: -- [TiDB Features](/basic-features.md) - [Cached Tables](/cached-tables.md) -- [Use Dumpling to Export Data](/dumpling-overview.md) -- [Non-Transactional DML Statements](/non-transactional-dml.md) -- [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) - [FLUSH TABLES](/sql-statements/sql-statement-flush-tables.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) +- [Non-Transactional DML Statements](/non-transactional-dml.md) +- [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) +- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) - [Temporary Tables](/temporary-tables.md) -- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) +- [TiDB Features](/basic-features.md) +- [Use Dumpling to Export Data](/dumpling-overview.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.2.2 Release Notes](/releases/release-5.2.2.md) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) @@ -3799,8 +3566,8 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3855,40 +3622,40 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_stmt_summary_internal_query Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_stmt_summary_max_sql_length Referenced in: -- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) -- [SLOW_QUERY](/information-schema/information-schema-slow-query.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SLOW_QUERY](/information-schema/information-schema-slow-query.md) +- [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_stmt_summary_max_stmt_count Referenced in: -- [SQL Statements Page of TiDB Dashboard](/dashboard/dashboard-statement-list.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Statements Page of TiDB Dashboard](/dashboard/dashboard-statement-list.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) - [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) @@ -3898,10 +3665,10 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_store_batch_size @@ -3920,12 +3687,6 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) -### tidb_streamagg_concurrency - -Referenced in: - -- [System Variables](/system-variables.md) - ### tidb_super_read_only Referenced in: @@ -3946,8 +3707,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3972,31 +3733,25 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_top_sql_max_time_series_count Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - -### tidb_track_aggregate_memory_usage - -Referenced in: - - [System Variables](/system-variables.md) +- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_tso_client_batch_max_wait_time Referenced in: -- [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### tidb_tso_client_rpc_mode @@ -4012,25 +3767,25 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_delete_rate_limit Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_delete_worker_count Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) @@ -4040,8 +3795,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [System Variables](/system-variables.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) @@ -4051,44 +3806,44 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_job_schedule_window_start_time Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_running_tasks Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [System Variables](/system-variables.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_ttl_scan_batch_size Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_scan_worker_count Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) +- [System Variables](/system-variables.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_txn_assertion_level @@ -4110,9 +3865,9 @@ Referenced in: Referenced in: -- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) +- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [Troubleshoot TiDB Lightning](/tidb-lightning/troubleshoot-tidb-lightning.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -4120,14 +3875,14 @@ Referenced in: Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Optimistic Transactions and Pessimistic Transactions](/develop/dev-guide-optimistic-and-pessimistic-transaction.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB Configuration File](/tidb-configuration-file.md) -- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Transactions](/transaction-overview.md) +- [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -4137,29 +3892,29 @@ Referenced in: Referenced in: -- [SQL Plan Management (SPM)](/sql-plan-management.md) - [CREATE [GLOBAL|SESSION] BINDING](/sql-statements/sql-statement-create-binding.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) ### tidb_wait_split_region_finish Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiDB 3.0.1 Release Notes](/releases/release-3.0.1.md) ### tidb_wait_split_region_timeout Referenced in: +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) ### tidb_window_concurrency @@ -4219,9 +3974,9 @@ Referenced in: Referenced in: -- [TiDB Features](/basic-features.md) -- [System Variables](/system-variables.md) - [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) +- [System Variables](/system-variables.md) +- [TiDB Features](/basic-features.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tikv_client_read_timeout @@ -4236,11 +3991,11 @@ Referenced in: Referenced in: -- [Time Zone Support](/configure-time-zone.md) - [Date and Time Types](/data-type-date-and-time.md) -- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) +- [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) +- [Time Zone Support](/configure-time-zone.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) @@ -4250,9 +4005,9 @@ Referenced in: Referenced in: - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) -- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) - [System Variables](/system-variables.md) +- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tx_isolation @@ -4262,24 +4017,12 @@ Referenced in: - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) - [System Variables](/system-variables.md) -### tx_isolation_one_shot - -Referenced in: - -- [System Variables](/system-variables.md) - -### tx_read_ts - -Referenced in: - -- [System Variables](/system-variables.md) - ### txn_scope Referenced in: -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) @@ -4288,8 +4031,8 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) - [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.dictionary @@ -4297,9 +4040,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.enable @@ -4307,10 +4050,10 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) - [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.length @@ -4318,9 +4061,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.mixed_case_count @@ -4328,9 +4071,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.number_count @@ -4338,9 +4081,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.policy @@ -4348,9 +4091,9 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### validate_password.special_char_count @@ -4358,28 +4101,10 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [TiDB Password Management](/password-management.md) -- [System Variables](/system-variables.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - -### version_comment - -Referenced in: - -- [System Variables](/system-variables.md) - -### version_compile_machine - -Referenced in: - -- [System Variables](/system-variables.md) - -### version_compile_os - -Referenced in: - - [System Variables](/system-variables.md) +- [TiDB Password Management](/password-management.md) +- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### wait_timeout @@ -4387,13 +4112,13 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) +- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) +- [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [System Variables](/system-variables.md) -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [TiKV Configuration File](/tikv-configuration-file.md) - [TiProxy Overview](/tiproxy/tiproxy-overview.md) +- [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 3.0.6 Release Notes](/releases/release-3.0.6.md) @@ -4411,6 +4136,6 @@ Referenced in: Referenced in: -- [Window Functions](/functions-and-operators/window-functions.md) - [System Variables](/system-variables.md) +- [Window Functions](/functions-and-operators/window-functions.md) From a8310ee4c84ae560c97671ea8fe4a4a0e254f8d0 Mon Sep 17 00:00:00 2001 From: Liki Du Date: Tue, 7 Jan 2025 18:06:44 -0800 Subject: [PATCH 17/24] Replace using What's new... --- system-variable-reference.md | 38 ++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 25c0d17392c67..c5f52217fb518 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -737,7 +737,7 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_allow_function_for_expression_index @@ -984,7 +984,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) - [System Variables](/system-variables.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 4.0 RC.1 Release Notes](/releases/release-4.0.0-rc.1.md) ### tidb_cdc_write_source @@ -1272,7 +1272,7 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 4.0 Beta Release Notes](/releases/release-4.0.0-beta.md) ### tidb_dml_type @@ -1300,7 +1300,7 @@ Referenced in: - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_analyze_snapshot @@ -1318,7 +1318,7 @@ Referenced in: - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) ### tidb_enable_async_merge_global_stats @@ -1418,7 +1418,7 @@ Referenced in: - [TiDB Database Schema Design Overview](/develop/dev-guide-schema-design-overview.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) ### tidb_enable_collect_execution_info @@ -1635,7 +1635,7 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_local_txn @@ -1708,7 +1708,7 @@ Referenced in: - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_noop_variables @@ -1935,7 +1935,7 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_table_partition @@ -2087,7 +2087,7 @@ Referenced in: - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_expensive_query_time_threshold @@ -2139,7 +2139,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_enable @@ -2154,7 +2154,7 @@ Referenced in: - [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) - [System Variables](/system-variables.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_life_time @@ -2179,7 +2179,7 @@ Referenced in: - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [Use Dumpling to Export Data](/dumpling-overview.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_max_wait_time @@ -2197,7 +2197,7 @@ Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_scan_lock_mode @@ -2209,7 +2209,7 @@ Referenced in: - [System Variables](/system-variables.md) - [TiDB Features](/basic-features.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_general_log @@ -3141,7 +3141,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_query_log_max_len @@ -3212,7 +3212,7 @@ Referenced in: - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.4 Release Notes](/releases/release-7.5.4.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) ### tidb_regard_null_as_point @@ -3446,7 +3446,7 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_skip_isolation_level_check @@ -3884,7 +3884,7 @@ Referenced in: - [Transactions](/transaction-overview.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -- [What's New in TiDB 5.0](/releases/release-5.0.0.md) +- [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) From 2975586c8e1cc3816cbd326ea571322c51fc6ecb Mon Sep 17 00:00:00 2001 From: qiancai Date: Wed, 8 Jan 2025 10:07:13 +0800 Subject: [PATCH 18/24] Removed incorrect references, such as the mention of wait_timeout in innodb_lock_wait_timeout --- system-variable-reference.md | 68 ------------------------------------ 1 file changed, 68 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 25c0d17392c67..3057504090d04 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -23,7 +23,6 @@ Referenced in: - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) - [System Variables](/system-variables.md) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) -- [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) ### authentication_ldap_sasl_auth_method_name @@ -360,15 +359,7 @@ Referenced in: Referenced in: -- [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [SQL FAQs](/faq/sql-faq.md) - [System Variables](/system-variables.md) -- [TiCDC Alert Rules](/ticdc/ticdc-alert-rules.md) -- [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) -- [TiDB 3.1 Beta.1 Release Notes](/releases/release-3.1.0-beta.1.md) -- [TiDB 3.0.0 Beta.1 Release Notes](/releases/release-3.0.0-beta.1.md) -- [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### foreign_key_checks @@ -508,7 +499,6 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [Optimizer Hints](/optimizer-hints.md) -- [SQL FAQs](/faq/sql-faq.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) - [System Variables](/system-variables.md) @@ -674,20 +664,14 @@ Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) - [Connect to TiDB with Django](/develop/dev-guide-sample-application-python-django.md) - [Connect to TiDB with MySQL Connector/Python](/develop/dev-guide-sample-application-python-mysql-connector.md) -- [Connect to TiDB with Prisma](/develop/dev-guide-sample-application-nodejs-prisma.md) - [Connect to TiDB with PyMySQL](/develop/dev-guide-sample-application-python-pymysql.md) - [Connect to TiDB with SQLAlchemy](/develop/dev-guide-sample-application-python-sqlalchemy.md) -- [Connect to TiDB with TypeORM](/develop/dev-guide-sample-application-nodejs-typeorm.md) -- [Connect to TiDB with mysql.js](/develop/dev-guide-sample-application-nodejs-mysqljs.md) -- [Connect to TiDB with mysql2](/develop/dev-guide-sample-application-ruby-mysql2.md) -- [Connect to TiDB with node-mysql2](/develop/dev-guide-sample-application-nodejs-mysql2.md) - [Connect to TiDB with peewee](/develop/dev-guide-sample-application-python-peewee.md) - [Get Started with TiDB + AI via Python](/vector-search/vector-search-get-started-using-python.md) - [Integrate TiDB Vector Search with Jina AI Embeddings API](/vector-search/vector-search-integrate-with-jinaai-embedding.md) - [Integrate TiDB Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) - [Integrate Vector Search with LangChain](/vector-search/vector-search-integrate-with-langchain.md) - [Integrate Vector Search with LlamaIndex](/vector-search/vector-search-integrate-with-llamaindex.md) -- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) ### ssl_cert @@ -695,7 +679,6 @@ Referenced in: Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) ### ssl_key @@ -703,7 +686,6 @@ Referenced in: Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [Maintain DM Clusters Using OpenAPI](/dm/dm-open-api.md) - [System Variables](/system-variables.md) ### system_time_zone @@ -841,7 +823,6 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_auto_analyze_end_time @@ -1050,17 +1031,9 @@ Referenced in: - [COMMIT](/sql-statements/sql-statement-commit.md) - [Constraints](/constraints.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [Error Codes and Troubleshooting](/error-codes.md) -- [Modify Configuration Dynamically](/dynamic-config.md) -- [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiDB Configuration File](/tidb-configuration-file.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Transactions](/transaction-overview.md) -- [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) -- [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) -- [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) ### tidb_constraint_check_in_place_pessimistic @@ -1094,10 +1067,8 @@ Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) - [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) -- [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md) -- [TiCDC FAQs](/ticdc/ticdc-faq.md) - [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [TimeStamp Oracle (TSO) in TiDB](/tso.md) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) @@ -1117,21 +1088,17 @@ Referenced in: - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB Environment and System Configuration Check](/check-before-deployment.md) -- [TiDB Features](/basic-features.md) - [TiDB Software and Hardware Requirements](/hardware-and-software-requirements.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) -- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) -- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1279,7 +1246,6 @@ Referenced in: Referenced in: -- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [Identify Expensive Queries](/identify-expensive-queries.md) - [System Variables](/system-variables.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -1297,8 +1263,6 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -1315,8 +1279,6 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) - [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) @@ -1344,12 +1306,6 @@ Referenced in: - [System Variables](/system-variables.md) - [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) -- [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) -- [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) -- [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) -- [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_enable_auto_analyze_priority_queue @@ -1362,7 +1318,6 @@ Referenced in: - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) -- [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_enable_auto_increment_in_generated @@ -1614,9 +1569,7 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [TiDB Features](/basic-features.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_enable_lazy_cursor_fetch @@ -2166,11 +2119,9 @@ Referenced in: - [FLASHBACK TABLE](/sql-statements/sql-statement-flashback-table.md) - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) -- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) - [SQL FAQs](/faq/sql-faq.md) - [Sink to MySQL](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-mysql) - [Sink to TiDB Cloud](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-tidb-cloud) -- [Stale Read](/develop/dev-guide-use-stale-read.md) - [System Variables](/system-variables.md) - [TiCDC FAQs](/ticdc/ticdc-faq.md) - [TiDB Incremental Backup and Restore Guide](/br/br-incremental-guide.md) @@ -2207,7 +2158,6 @@ Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) -- [TiDB Features](/basic-features.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [What's New in TiDB 5.0](/releases/release-5.0.0.md) @@ -2282,7 +2232,6 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_hashagg_final_concurrency @@ -2313,7 +2262,6 @@ Referenced in: - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [TiDB Features](/basic-features.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -2973,7 +2921,6 @@ Referenced in: Referenced in: - [System Variables](/system-variables.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_opt_range_max_size @@ -3245,7 +3192,6 @@ Referenced in: - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) -- [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) - [TiDB 3.1 Beta.2 Release Notes](/releases/release-3.1.0-beta.2.md) @@ -3275,7 +3221,6 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Privilege Management](/privilege-management.md) -- [Replicate Data to MySQL-compatible Databases](/ticdc/ticdc-sink-to-mysql.md) - [System Variables](/system-variables.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) @@ -3370,7 +3315,6 @@ Referenced in: - [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) - [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) - [TiDB 6.5.7 Release Notes](/releases/release-6.5.7.md) -- [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3399,10 +3343,8 @@ Referenced in: - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [Configuration Options](/command-line-flags-for-tidb-configuration.md) -- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [System Variables](/system-variables.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) -- [TiDB Features](/basic-features.md) - [TiDB Global Sort](/tidb-global-sort.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -3548,7 +3490,6 @@ Referenced in: - [System Variables](/system-variables.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -3760,7 +3701,6 @@ Referenced in: - [System Variables](/system-variables.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) -- [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_ttl_delete_batch_size @@ -3905,7 +3845,6 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) - [System Variables](/system-variables.md) -- [TiDB 3.0.1 Release Notes](/releases/release-3.0.1.md) ### tidb_wait_split_region_timeout @@ -3976,7 +3915,6 @@ Referenced in: - [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) - [System Variables](/system-variables.md) -- [TiDB Features](/basic-features.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tikv_client_read_timeout @@ -3997,7 +3935,6 @@ Referenced in: - [System Variables](/system-variables.md) - [Time Zone Support](/configure-time-zone.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) -- [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) ### transaction_isolation @@ -4007,7 +3944,6 @@ Referenced in: - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) - [System Variables](/system-variables.md) -- [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tx_isolation @@ -4115,13 +4051,9 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) -- [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) -- [TiKV Configuration File](/tikv-configuration-file.md) - [TiProxy Overview](/tiproxy/tiproxy-overview.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) -- [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) -- [TiDB 3.0.6 Release Notes](/releases/release-3.0.6.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) From 78277d574bff518456b824c9b43e6f7ada905e32 Mon Sep 17 00:00:00 2001 From: qiancai Date: Wed, 8 Jan 2025 11:00:01 +0800 Subject: [PATCH 19/24] replace the links to the system variables doc with specific variable links --- system-variable-reference.md | 852 ++++++++++++++++++----------------- 1 file changed, 435 insertions(+), 417 deletions(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 1030ad02532db..36fadee6b75a9 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -21,147 +21,147 @@ Referenced in: - [AUTO_RANDOM](/auto-random.md) - [Insert Data](/develop/dev-guide-insert-data.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#allow_auto_random_explicit_insert-new-in-v403) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) ### authentication_ldap_sasl_auth_method_name Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_auth_method_name-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_bind_base_dn Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_bind_base_dn-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_bind_root_dn Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_bind_root_dn-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_bind_root_pwd Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_bind_root_pwd-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_ca_path Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_ca_path-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_init_pool_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_init_pool_size-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_max_pool_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_max_pool_size-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_server_host Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_server_host-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_server_port Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_server_port-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_sasl_tls Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_sasl_tls-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_auth_method_name Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_auth_method_name-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_bind_base_dn Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_bind_base_dn-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_bind_root_dn Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_bind_root_dn-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_bind_root_pwd Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_bind_root_pwd-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_ca_path Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_ca_path-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_init_pool_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_init_pool_size-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_max_pool_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_max_pool_size-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_server_host Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_server_host-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_server_port Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_server_port-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### authentication_ldap_simple_tls Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#authentication_ldap_simple_tls-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### auto_increment_increment @@ -173,7 +173,7 @@ Referenced in: - [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) - [Error Codes and Troubleshooting](/error-codes.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#auto_increment_increment) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) @@ -188,7 +188,7 @@ Referenced in: - [Bidirectional Replication](/ticdc/ticdc-bidirectional-replication.md) - [Error Codes and Troubleshooting](/error-codes.md) - [SESSION_VARIABLES](/information-schema/information-schema-session-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#auto_increment_offset) - [VARIABLES_INFO](/information-schema/information-schema-variables-info.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) @@ -199,7 +199,7 @@ Referenced in: Referenced in: - [Non-Transactional DML Statements](/non-transactional-dml.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#autocommit) - [Transactions](/transaction-overview.md) ### block_encryption_mode @@ -207,7 +207,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#block_encryption_mode) ### character_set_client @@ -216,7 +216,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [GBK](/character-set-gbk.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#character_set_client) - [Use Dumpling to Export Data](/dumpling-overview.md) - [VIEWS](/information-schema/information-schema-views.md) - [Views](/views.md) @@ -229,7 +229,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [GBK](/character-set-gbk.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#character_set_connection) - [Use Dumpling to Export Data](/dumpling-overview.md) ### character_set_database @@ -238,7 +238,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#character_set_database) ### character_set_results @@ -246,7 +246,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#character_set_results) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) @@ -256,7 +256,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [SET [NAMES|CHARACTER SET]](/sql-statements/sql-statement-set-names.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#character_set_server) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### collation_connection @@ -265,7 +265,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [String Functions](/functions-and-operators/string-functions.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#collation_connection) - [VIEWS](/information-schema/information-schema-views.md) - [Views](/views.md) - [Views](/develop/dev-guide-use-views.md) @@ -275,14 +275,14 @@ Referenced in: Referenced in: - [Character Set and Collation](/character-set-and-collation.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#collation_database) ### collation_server Referenced in: - [Character Set and Collation](/character-set-and-collation.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#collation_server) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.2 Release Notes](/releases/release-5.0.2.md) @@ -292,7 +292,7 @@ Referenced in: Referenced in: - [Highly Concurrent Write Best Practices](/best-practices/high-concurrency-best-practices.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#cte_max_recursion_depth) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) ### ddl_slow_threshold @@ -300,14 +300,14 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#ddl_slow_threshold) ### default_authentication_plugin Referenced in: - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#default_authentication_plugin) - [TiDB Features](/basic-features.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -318,7 +318,7 @@ Referenced in: Referenced in: - [Character Set and Collation](/character-set-and-collation.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#default_collation_for_utf8mb4-new-in-v740) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -327,7 +327,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#default_password_lifetime-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -336,7 +336,7 @@ Referenced in: Referenced in: - [Date and Time Functions](/functions-and-operators/date-and-time-functions.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#default_week_format) - [TiDB 4.0.11 Release Notes](/releases/release-4.0.11.md) - [TiDB 2.1.7 Release Notes](/releases/release-2.1.7.md) @@ -344,7 +344,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#disconnect_on_expired_password-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### div_precision_increment @@ -352,14 +352,14 @@ Referenced in: Referenced in: - [Numeric Functions and Operators](/functions-and-operators/numeric-functions-and-operators.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#div_precision_increment-new-in-v800) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### error_count Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#error_count) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### foreign_key_checks @@ -367,7 +367,7 @@ Referenced in: Referenced in: - [FOREIGN KEY Constraints](/foreign-key.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#foreign_key_checks) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### group_concat_max_len @@ -375,7 +375,7 @@ Referenced in: Referenced in: - [Aggregate (GROUP BY) Functions](/functions-and-operators/aggregate-group-by-functions.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#group_concat_max_len) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) ### have_openssl @@ -383,20 +383,20 @@ Referenced in: Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#have_openssl) ### have_ssl Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#have_ssl) ### init_connect Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#init_connect) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) @@ -406,7 +406,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#innodb_lock_wait_timeout) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiKV Configuration File](/tikv-configuration-file.md) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) @@ -417,7 +417,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#interactive_timeout) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -432,7 +432,7 @@ Referenced in: - [Information Functions](/functions-and-operators/information-functions.md) - [SHOW BUILTINS](/sql-statements/sql-statement-show-builtins.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#last_insert_id) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 3.1 RC Release Notes](/releases/release-3.1.0-rc.md) - [TiDB 2.1.17 Release Notes](/releases/release-2.1.17.md) @@ -443,7 +443,7 @@ Referenced in: Referenced in: - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#last_plan_from_binding-new-in-v40) - [TiDB 4.0.12 Release Notes](/releases/release-4.0.12.md) ### last_plan_from_cache @@ -453,14 +453,14 @@ Referenced in: - [Index Selection](/choose-index.md) - [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#last_plan_from_cache-new-in-v40) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) ### last_sql_use_alloc Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#last_sql_use_alloc-new-in-v640) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### max_allowed_packet @@ -470,7 +470,7 @@ Referenced in: - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [Handle Errors in TiDB Data Migration](/dm/dm-error-handling.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#max_allowed_packet-new-in-v610) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) @@ -488,7 +488,7 @@ Referenced in: - [Integrate TiDB with ProxySQL](/develop/dev-guide-proxysql-integration.md) - [Modify Configuration Dynamically](/dynamic-config.md) - [Precheck Errors, Migration Errors, and Alerts for Data Migration](https://docs.pingcap.com/tidbcloud/tidb-cloud-dm-precheck-and-troubleshooting) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#max_connections) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiDB Configuration File](/tidb-configuration-file.md) @@ -501,7 +501,7 @@ Referenced in: - [Optimizer Hints](/optimizer-hints.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#max_execution_time) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -513,7 +513,7 @@ Referenced in: Referenced in: - [PREPARE](/sql-statements/sql-statement-prepare.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#max_prepared_stmt_count) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) @@ -522,7 +522,7 @@ Referenced in: Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#mpp_exchange_compression_mode-new-in-v660) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### mpp_version @@ -530,7 +530,7 @@ Referenced in: Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#mpp_version-new-in-v660) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### password_history @@ -538,7 +538,7 @@ Referenced in: Referenced in: - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#password_history-new-in-v650) - [TiDB Password Management](/password-management.md) - [`mysql` Schema](/mysql-schema/mysql-schema.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -547,7 +547,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#password_reuse_interval-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -555,7 +555,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#pd_enable_follower_handle_region-new-in-v760) - [TiDB Features](/basic-features.md) - [Tune Region Performance](/tune-region-performance.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) @@ -567,7 +567,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#plugin_dir) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) ### plugin_load @@ -575,7 +575,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#plugin_load) ### require_secure_transport @@ -583,7 +583,7 @@ Referenced in: - [Enable TLS between TiDB Clients and Servers](/enable-tls-between-clients-and-servers.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#require_secure_transport-new-in-v610) - [TLS Connections to TiDB Cloud Dedicated](https://docs.pingcap.com/tidbcloud/tidb-cloud-tls-connect-to-dedicated) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -597,7 +597,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#skip_name_resolve-new-in-v520) ### sql_mode @@ -615,7 +615,7 @@ Referenced in: - [SQL FAQs](/faq/sql-faq.md) - [SQL Mode](/sql-mode.md) - [Schema Object Names](/schema-object-names.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#sql_mode) - [TiDB Lightning FAQs](/tidb-lightning/tidb-lightning-faq.md) - [TiDB User Account Management](/user-account-management.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) @@ -646,7 +646,7 @@ Referenced in: Referenced in: - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#sql_require_primary_key-new-in-v630) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### sql_select_limit @@ -654,7 +654,7 @@ Referenced in: Referenced in: - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#sql_select_limit-new-in-v402) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) ### ssl_ca @@ -672,27 +672,27 @@ Referenced in: - [Integrate TiDB Vector Search with SQLAlchemy](/vector-search/vector-search-integrate-with-sqlalchemy.md) - [Integrate Vector Search with LangChain](/vector-search/vector-search-integrate-with-langchain.md) - [Integrate Vector Search with LlamaIndex](/vector-search/vector-search-integrate-with-llamaindex.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#ssl_ca) ### ssl_cert Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#ssl_cert) ### ssl_key Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#ssl_key) ### system_time_zone Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#system_time_zone) - [Time Zone Support](/configure-time-zone.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -701,7 +701,7 @@ Referenced in: Referenced in: - [Follower Read](/follower-read.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_adaptive_closest_read_threshold-new-in-v630) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -710,7 +710,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_allow_batch_cop-new-in-v40) - [TiDB 4.0.3 Release Notes](/releases/release-4.0.3.md) - [TiDB 4.0 RC.2 Release Notes](/releases/release-4.0.0-rc.2.md) @@ -718,7 +718,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_allow_fallback_to_tikv-new-in-v50) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_allow_function_for_expression_index @@ -726,7 +726,7 @@ Referenced in: Referenced in: - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_allow_function_for_expression_index-new-in-v520) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Features](/basic-features.md) @@ -736,7 +736,7 @@ Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) - [Explore HTAP](/explore-htap.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_allow_mpp-new-in-v50) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -750,7 +750,7 @@ Referenced in: - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [MySQL Compatibility](/mysql-compatibility.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_allow_remove_auto_inc-new-in-v2118-and-v304) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) @@ -758,7 +758,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_allow_tiflash_cop-new-in-v730) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tidb_analyze_column_options @@ -767,7 +767,7 @@ Referenced in: - [How to Run CH-benCHmark Test on TiDB](/benchmark/benchmark-tidb-using-ch.md) - [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_analyze_column_options-new-in-v830) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -775,7 +775,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_analyze_distsql_scan_concurrency-new-in-v760) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -784,7 +784,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_analyze_partition_concurrency) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) @@ -796,7 +796,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_analyze_skip_column_types-new-in-v720) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -807,7 +807,7 @@ Referenced in: - [ANALYZE_STATUS](/information-schema/information-schema-analyze-status.md) - [Introduction to Statistics](/statistics.md) - [SHOW ANALYZE STATUS](/sql-statements/sql-statement-show-analyze-status.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_analyze_version-new-in-v510) - [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -822,7 +822,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_auto_analyze_concurrency-new-in-v840) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_auto_analyze_end_time @@ -831,7 +831,7 @@ Referenced in: - [Introduction to Statistics](/statistics.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_auto_analyze_end_time) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -841,7 +841,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_auto_analyze_partition_batch_size-new-in-v640) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -853,7 +853,7 @@ Referenced in: - [SHOW STATS_HEALTHY](/sql-statements/sql-statement-show-stats-healthy.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_auto_analyze_ratio) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [`EXPLAIN` Walkthrough](/explain-walkthrough.md) @@ -866,7 +866,7 @@ Referenced in: - [Introduction to Statistics](/statistics.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_auto_analyze_start_time) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -875,7 +875,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_auto_build_stats_concurrency-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_backoff_lock_fast @@ -883,7 +883,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_backoff_lock_fast) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_backoff_weight @@ -891,7 +891,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_backoff_weight) - [TiDB 3.0.3 Release Notes](/releases/release-3.0.3.md) ### tidb_batch_commit @@ -899,7 +899,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_batch_commit) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) - [TiDB 3.0 GA Release Notes](/releases/release-3.0-ga.md) @@ -908,13 +908,13 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_batch_delete) ### tidb_batch_insert Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_batch_insert) - [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) ### tidb_broadcast_join_threshold_count @@ -922,7 +922,7 @@ Referenced in: Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_broadcast_join_threshold_count-new-in-v50) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -932,7 +932,7 @@ Referenced in: Referenced in: - [Explain Statements in the MPP Mode](/explain-mpp.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_broadcast_join_threshold_size-new-in-v50) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -942,7 +942,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_build_sampling_stats_concurrency-new-in-v750) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) ### tidb_build_stats_concurrency @@ -951,7 +951,7 @@ Referenced in: - [Introduction to Statistics](/statistics.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_build_stats_concurrency) - [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.5.0](https://docs.pingcap.com/tidbcloud/v7.5-performance-benchmarking-with-tpcc) @@ -964,7 +964,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_capture_plan_baselines-new-in-v40) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 4.0 RC.1 Release Notes](/releases/release-4.0.0-rc.1.md) @@ -973,7 +973,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_cdc_write_source-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_check_mb4_value_in_utf8 @@ -983,7 +983,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_check_mb4_value_in_utf8) - [TiDB Configuration File](/tidb-configuration-file.md) - [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) @@ -992,7 +992,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_checksum_table_concurrency) - [TiDB Lightning Configuration](/tidb-lightning/tidb-lightning-configuration.md) ### tidb_cloud_storage_uri @@ -1000,7 +1000,7 @@ Referenced in: Referenced in: - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_cloud_storage_uri-new-in-v740) - [TiDB Global Sort](/tidb-global-sort.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -1009,7 +1009,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_committer_concurrency-new-in-v610) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB Monitoring Metrics](/grafana-tidb-dashboard.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -1020,7 +1020,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_config) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 1.1 Beta Release Notes](/releases/release-1.1-beta.md) @@ -1032,7 +1032,7 @@ Referenced in: - [Constraints](/constraints.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_constraint_check_in_place) - [Transactions](/transaction-overview.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) @@ -1044,7 +1044,7 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [Modify Configuration Dynamically](/dynamic-config.md) - [SAVEPOINT](/sql-statements/sql-statement-savepoint.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_constraint_check_in_place_pessimistic-new-in-v630) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -1056,7 +1056,7 @@ Referenced in: Referenced in: - [Cost Model](/cost-model.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_cost_model_version-new-in-v620) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -1068,7 +1068,7 @@ Referenced in: - [FLASHBACK CLUSTER](/sql-statements/sql-statement-flashback-cluster.md) - [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_current_ts) - [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [TimeStamp Oracle (TSO) in TiDB](/tso.md) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) @@ -1078,7 +1078,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_disk_quota-new-in-v630) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1088,17 +1088,21 @@ Referenced in: - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) +- [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_enable_fast_reorg-new-in-v630) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB Environment and System Configuration Check](/check-before-deployment.md) +- [TiDB Features](/basic-features.md) - [TiDB Software and Hardware Requirements](/hardware-and-software-requirements.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) +- [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +- [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1109,7 +1113,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_error_count_limit) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) ### tidb_ddl_flashback_concurrency @@ -1117,7 +1121,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_flashback_concurrency-new-in-v630) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1133,7 +1137,7 @@ Referenced in: - [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_reorg_batch_size) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [`EXPLAIN` Walkthrough](/explain-walkthrough.md) @@ -1148,7 +1152,7 @@ Referenced in: - [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_reorg_max_write_speed-new-in-v755-and-v850) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) @@ -1160,7 +1164,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_reorg_priority) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) @@ -1177,7 +1181,7 @@ Referenced in: - [Performance Tuning Best Practices](/develop/dev-guide-optimize-sql-best-practices.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ddl_reorg_worker_cnt) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [Troubleshoot Increased Read and Write Latency](/troubleshoot-cpu-issues.md) - [`EXPLAIN` Walkthrough](/explain-walkthrough.md) @@ -1191,7 +1195,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_default_string_match_selectivity-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_disable_txn_auto_retry @@ -1200,7 +1204,7 @@ Referenced in: - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_disable_txn_auto_retry) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [Transactions](/transaction-overview.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1219,7 +1223,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SLOW_QUERY](/information-schema/information-schema-slow-query.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_distsql_scan_concurrency) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) @@ -1236,7 +1240,7 @@ Referenced in: - [LOAD DATA](/sql-statements/sql-statement-load-data.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_dml_batch_size) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) @@ -1246,8 +1250,9 @@ Referenced in: Referenced in: +- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) - [Identify Expensive Queries](/identify-expensive-queries.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_dml_type-new-in-v800) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Features](/basic-features.md) - [TiDB Memory Control](/configure-memory-usage.md) @@ -1262,7 +1267,9 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_1pc-new-in-v50) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) @@ -1270,7 +1277,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_analyze_snapshot-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_async_commit @@ -1278,7 +1285,9 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_async_commit-new-in-v50) +- [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Features](/basic-features.md) - [Transactions](/transaction-overview.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) - [TiDB 5.0 RC Release Notes](/releases/release-5.0.0-rc.md) @@ -1287,7 +1296,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_async_merge_global_stats-new-in-v750) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1303,7 +1312,7 @@ Referenced in: - [Introduction to Statistics](/statistics.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_auto_analyze-new-in-v610) - [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -1313,7 +1322,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_auto_analyze_priority_queue-new-in-v800) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1325,14 +1334,14 @@ Referenced in: Referenced in: - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_auto_increment_in_generated) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) ### tidb_enable_batch_dml Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_batch_dml) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) ### tidb_enable_cascades_planner @@ -1340,7 +1349,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_cascades_planner) - [TiDB Features](/basic-features.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -1350,7 +1359,7 @@ Referenced in: - [CHECK\_CONSTRAINTS](/information-schema/information-schema-check-constraints.md) - [Constraints](/constraints.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_check_constraint-new-in-v720) - [TIDB\_CHECK\_CONSTRAINTS](/information-schema/information-schema-tidb-check-constraints.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -1359,7 +1368,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_chunk_rpc-new-in-v40) ### tidb_enable_clustered_index @@ -1367,7 +1376,7 @@ Referenced in: - [Clustered Indexes](/clustered-indexes.md) - [Create a Table](/develop/dev-guide-create-table.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_clustered_index-new-in-v50) - [TiDB Backup & Restore Overview](/br/backup-and-restore-overview.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Database Schema Design Overview](/develop/dev-guide-schema-design-overview.md) @@ -1384,7 +1393,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_collect_execution_info) - [TIDB_INDEX_USAGE](/information-schema/information-schema-tidb-index-usage.md) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1396,7 +1405,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_column_tracking-new-in-v540) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -1407,7 +1416,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_ddl-new-in-v630) - [TiDB Configuration File](/tidb-configuration-file.md) - [Topology Configuration File for TiDB Deployment Using TiUP](/tiup/tiup-cluster-topology-reference.md) @@ -1418,7 +1427,7 @@ Referenced in: - [ADMIN ALTER DDL JOBS](/sql-statements/sql-statement-admin-alter-ddl.md) - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_dist_task-new-in-v710) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) - [TiDB Global Sort](/tidb-global-sort.md) - [TiDB Smooth Upgrade](/smooth-upgrade-tidb.md) @@ -1434,7 +1443,7 @@ Referenced in: - [BACKUP](/sql-statements/sql-statement-backup.md) - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_enhanced_security) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Dashboard User Management](/dashboard/dashboard-user.md) - [TiDB Features](/basic-features.md) @@ -1444,7 +1453,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_exchange_partition) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1453,7 +1462,7 @@ Referenced in: Referenced in: - [Introduction to Extended Statistics](/extended-statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_extended_stats) ### tidb_enable_external_ts_read @@ -1461,7 +1470,7 @@ Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) - [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_external_ts_read-new-in-v640) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -1470,7 +1479,7 @@ Referenced in: Referenced in: - [Introduction to Extended Statistics](/extended-statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_fast_analyze) - [TiDB Features](/basic-features.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -1480,7 +1489,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_fast_create_table-new-in-v800) - [TiDB Accelerated Table Creation](/accelerated-table-creation.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1490,14 +1499,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_fast_table_check-new-in-v720) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) ### tidb_enable_foreign_key Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_foreign_key-new-in-v630) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1506,14 +1515,14 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_gc_aware_memory_track) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_enable_global_index Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_global_index-new-in-v760) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -1523,14 +1532,14 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_gogc_tuner-new-in-v640) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_historical_stats Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_historical_stats) - [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -1539,7 +1548,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_historical_stats_for_capture) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_enable_index_merge @@ -1550,7 +1559,7 @@ Referenced in: - [Index Selection](/choose-index.md) - [Optimizer Hints](/optimizer-hints.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_index_merge-new-in-v40) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_enable_inl_join_inner_multi_pattern @@ -1558,7 +1567,7 @@ Referenced in: Referenced in: - [Optimizer Hints](/optimizer-hints.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_inl_join_inner_multi_pattern-new-in-v700) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1568,7 +1577,8 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_instance_plan_cache-new-in-v840) +- [TiDB Features](/basic-features.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1578,14 +1588,14 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_lazy_cursor_fetch-new-in-v830) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_enable_list_partition Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_list_partition-new-in-v50) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) @@ -1595,14 +1605,14 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_local_txn) ### tidb_enable_metadata_lock Referenced in: - [Metadata Lock](/metadata-lock.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_metadata_lock-new-in-v630) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1610,7 +1620,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_mutation_checker-new-in-v600) - [Troubleshoot Inconsistency Between Data and Indexes](/troubleshoot-data-inconsistency-errors.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) @@ -1618,7 +1628,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_new_cost_interface-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_new_only_full_group_by_check @@ -1626,7 +1636,7 @@ Referenced in: Referenced in: - [SQL Mode](/sql-mode.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_new_only_full_group_by_check-new-in-v610) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_enable_non_prepared_plan_cache @@ -1634,7 +1644,7 @@ Referenced in: Referenced in: - [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_non_prepared_plan_cache) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) @@ -1647,7 +1657,7 @@ Referenced in: Referenced in: - [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_non_prepared_plan_cache_for_dml-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_enable_noop_functions @@ -1657,7 +1667,7 @@ Referenced in: - [Information Functions](/functions-and-operators/information-functions.md) - [SELECT](/sql-statements/sql-statement-select.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_noop_functions-new-in-v40) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) @@ -1667,14 +1677,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_noop_variables-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_enable_null_aware_anti_join Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_null_aware_anti_join-new-in-v630) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1683,7 +1693,7 @@ Referenced in: Referenced in: - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_ordered_result_mode) - [TiDB 7.1.3 Release Notes](/releases/release-7.1.3.md) - [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) @@ -1692,7 +1702,7 @@ Referenced in: Referenced in: - [Introduction to Join Reorder](/join-reorder.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_outer_join_reorder-new-in-v610) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 6.1.1 Release Notes](/releases/release-6.1.1.md) @@ -1703,7 +1713,7 @@ Referenced in: Referenced in: - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_paging-new-in-v540) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -1712,7 +1722,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_parallel_apply-new-in-v50) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) - [TiDB 6.5.4 Release Notes](/releases/release-6.5.4.md) @@ -1722,7 +1732,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_parallel_hashagg_spill-new-in-v800) - [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1735,28 +1745,28 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_pipelined_window_function) - [Window Functions](/functions-and-operators/window-functions.md) ### tidb_enable_plan_cache_for_param_limit Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_plan_cache_for_param_limit-new-in-v660) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_enable_plan_cache_for_subquery Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_plan_cache_for_subquery-new-in-v700) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_enable_plan_replayer_capture Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_plan_replayer_capture) - [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -1764,7 +1774,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_plan_replayer_continuous_capture-new-in-v700) - [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -1774,7 +1784,7 @@ Referenced in: - [How to Test TiDB Using Sysbench](/benchmark/benchmark-tidb-using-sysbench.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_prepared_plan_cache-new-in-v610) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB Dashboard FAQs](/dashboard/dashboard-faq.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -1786,7 +1796,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_prepared_plan_cache_memory_monitor-new-in-v640) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_enable_pseudo_for_outdated_stats @@ -1794,7 +1804,7 @@ Referenced in: Referenced in: - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_pseudo_for_outdated_stats-new-in-v530) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -1802,7 +1812,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_rate_limit_action) - [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -1817,7 +1827,7 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SET RESOURCE GROUP](/sql-statements/sql-statement-set-resource-group.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_resource_control-new-in-v660) - [TiKV Configuration File](/tikv-configuration-file.md) - [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) - [`CALIBRATE RESOURCE`](/sql-statements/sql-statement-calibrate-resource.md) @@ -1829,7 +1839,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_reuse_chunk-new-in-v640) - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -1837,7 +1847,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_row_level_checksum-new-in-v710) - [TiCDC Data Integrity Validation for Single-Row Data](/ticdc/ticdc-integrity-check.md) - [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -1848,7 +1858,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_shared_lock_promotion-new-in-v830) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -1861,14 +1871,14 @@ Referenced in: - [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_slow_log) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_enable_stats_owner Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_stats_owner-new-in-v840) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -1880,14 +1890,14 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_stmt_summary-new-in-v304) - [TiDB 3.0.4 Release Notes](/releases/release-3.0.4.md) ### tidb_enable_strict_double_type_check Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_strict_double_type_check-new-in-v50) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_enable_table_partition @@ -1895,7 +1905,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_table_partition) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -1904,7 +1914,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_telemetry-new-in-v402-and-deprecated-in-v810) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 6.5.1 Release Notes](/releases/release-6.5.1.md) @@ -1914,7 +1924,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_tiflash_read_for_write_stmt-new-in-v630) - [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -1928,7 +1938,7 @@ Referenced in: - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [Enable Encryption for Disk Spill](/enable-disk-spill-encrypt.md) - [Explain Statements That Use Joins](/explain-joins.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_tmp_storage_on_oom) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Memory Control](/configure-memory-usage.md) @@ -1937,7 +1947,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_top_sql-new-in-v540) - [TiDB Dashboard Top SQL Page](/dashboard/top-sql.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -1947,7 +1957,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [PD Microservices](/pd-microservices.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_tso_follower_proxy-new-in-v530) - [TiDB Features](/basic-features.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -1957,7 +1967,7 @@ Referenced in: Referenced in: - [Generated Columns](/generated-columns.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_unsafe_substitute-new-in-v630) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_enable_vectorized_expression @@ -1965,7 +1975,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_vectorized_expression-new-in-v40) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) - [TiDB 5.2.4 Release Notes](/releases/release-5.2.4.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) @@ -1977,7 +1987,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enable_window_function) - [Window Functions](/functions-and-operators/window-functions.md) - [TiDB 3.0.8 Release Notes](/releases/release-3.0.8.md) @@ -1986,7 +1996,7 @@ Referenced in: Referenced in: - [Explore HTAP](/explore-htap.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_enforce_mpp-new-in-v51) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiFlash Query Result Materialization](/tiflash/tiflash-results-materialization.md) - [Troubleshoot a TiFlash Cluster](/tiflash/troubleshoot-tiflash.md) @@ -2005,7 +2015,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_evolve_plan_baselines-new-in-v40) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) ### tidb_evolve_plan_task_end_time @@ -2014,7 +2024,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_evolve_plan_task_end_time-new-in-v40) ### tidb_evolve_plan_task_max_time @@ -2022,7 +2032,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_evolve_plan_task_max_time-new-in-v40) ### tidb_evolve_plan_task_start_time @@ -2030,13 +2040,13 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_evolve_plan_task_start_time-new-in-v40) ### tidb_executor_concurrency Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_executor_concurrency-new-in-v50) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) @@ -2050,14 +2060,14 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_expensive_query_time_threshold) - [TiDB Configuration File](/tidb-configuration-file.md) ### tidb_expensive_txn_time_threshold Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_expensive_txn_time_threshold-new-in-v720) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) ### tidb_external_ts @@ -2066,7 +2076,7 @@ Referenced in: - [DR Solution Based on Primary and Secondary Clusters](/dr-secondary-cluster.md) - [Read Historical Data Using the `tidb_external_ts` Variable](/tidb-external-ts.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_external_ts-new-in-v640) - [Upstream and Downstream Clusters Data Validation and Snapshot Read](/ticdc/ticdc-upstream-downstream-check.md) - [Usage Scenarios of Stale Read](/stale-read.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -2079,7 +2089,7 @@ Referenced in: - [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_force_priority) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 2.1.5 Release Notes](/releases/release-2.1.5.md) - [TiDB 2.1 RC3 Release Notes](/releases/release-2.1-rc.3.md) @@ -2090,7 +2100,7 @@ Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gc_concurrency-new-in-v50) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) @@ -2105,7 +2115,7 @@ Referenced in: - [Migrate from One TiDB Cluster to Another TiDB Cluster](/migrate-from-tidb-to-tidb.md) - [Migrate from TiDB Self-Managed to TiDB Cloud](https://docs.pingcap.com/tidbcloud/migrate-from-op-tidb) - [Replicate Data Between Primary and Secondary Clusters](/replicate-between-primary-and-secondary-clusters.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gc_enable-new-in-v50) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) @@ -2119,10 +2129,12 @@ Referenced in: - [FLASHBACK TABLE](/sql-statements/sql-statement-flashback-table.md) - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) +- [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) - [SQL FAQs](/faq/sql-faq.md) - [Sink to MySQL](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-mysql) - [Sink to TiDB Cloud](https://docs.pingcap.com/tidbcloud/changefeed-sink-to-tidb-cloud) -- [System Variables](/system-variables.md) +- [Stale Read](/develop/dev-guide-use-stale-read.md) +- [System Variables](/system-variables.md#tidb_gc_life_time-new-in-v50) - [TiCDC FAQs](/ticdc/ticdc-faq.md) - [TiDB Incremental Backup and Restore Guide](/br/br-incremental-guide.md) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) @@ -2138,7 +2150,7 @@ Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gc_max_wait_time-new-in-v610) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_gc_run_interval @@ -2147,7 +2159,7 @@ Referenced in: - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gc_run_interval-new-in-v50) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_gc_scan_lock_mode @@ -2157,7 +2169,8 @@ Referenced in: - [GC Overview](/garbage-collection-overview.md) - [Garbage Collection Configuration](/garbage-collection-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gc_scan_lock_mode-new-in-v50) +- [TiDB Features](/basic-features.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) @@ -2168,7 +2181,7 @@ Referenced in: - [Configuration Options](/command-line-flags-for-tidb-configuration.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_general_log) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Data Migration FAQs](/dm/dm-faq.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) @@ -2178,7 +2191,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_generate_binary_plan-new-in-v620) - [TiDB Specific Functions](/functions-and-operators/tidb-functions.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -2186,7 +2199,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gogc_tuner_max_value-new-in-v750) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) @@ -2194,7 +2207,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gogc_tuner_min_value-new-in-v750) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) @@ -2203,7 +2216,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_gogc_tuner_threshold-new-in-v640) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) @@ -2214,7 +2227,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_guarantee_linearizability-new-in-v50) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) ### tidb_hash_join_concurrency @@ -2225,13 +2238,13 @@ Referenced in: - [Best Practices for Three-Node Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [Explain Statements That Use Joins](/explain-joins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_hash_join_concurrency) ### tidb_hash_join_version Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_hash_join_version-new-in-v840) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_hashagg_final_concurrency @@ -2239,20 +2252,20 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_hashagg_final_concurrency) ### tidb_hashagg_partial_concurrency Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_hashagg_partial_concurrency) ### tidb_historical_stats_duration Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_historical_stats_duration-new-in-v660) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_idle_transaction_timeout @@ -2260,8 +2273,9 @@ Referenced in: Referenced in: - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_idle_transaction_timeout-new-in-v760) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) +- [TiDB Features](/basic-features.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -2272,7 +2286,7 @@ Referenced in: - [Performance Analysis and Tuning](/performance-tuning-methods.md) - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ignore_prepared_cache_close_stmt-new-in-v600) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) @@ -2282,13 +2296,13 @@ Referenced in: - [Explain Statements That Use Joins](/explain-joins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_join_batch_size) ### tidb_index_join_double_read_penalty_cost_rate Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_join_double_read_penalty_cost_rate-new-in-v660) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) ### tidb_index_lookup_concurrency @@ -2296,7 +2310,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_lookup_concurrency) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) ### tidb_index_lookup_join_concurrency @@ -2306,21 +2320,21 @@ Referenced in: - [Best Practices for Three-Node Hybrid Deployment](/best-practices/three-nodes-hybrid-deployment.md) - [Explain Statements That Use Joins](/explain-joins.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_lookup_join_concurrency) ### tidb_index_lookup_size Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_lookup_size) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) ### tidb_index_merge_intersection_concurrency Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_merge_intersection_concurrency-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_index_serial_scan_concurrency @@ -2329,7 +2343,7 @@ Referenced in: - [Introduction to Statistics](/statistics.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_index_serial_scan_concurrency) - [TiDB Best Practices](/best-practices/tidb-best-practices.md) - [TiDB Cloud TPC-C Performance Test Report for TiDB v6.5.6](https://docs.pingcap.com/tidbcloud/v6.5-performance-benchmarking-with-tpcc) - [TiDB Cloud TPC-C Performance Test Report for TiDB v7.1.3](https://docs.pingcap.com/tidbcloud/v7.1-performance-benchmarking-with-tpcc) @@ -2342,7 +2356,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_init_chunk_size) - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) @@ -2350,7 +2364,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_instance_plan_cache_max_size-new-in-v840) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -2358,7 +2372,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_instance_plan_cache_reserved_percentage-new-in-v840) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_isolation_read_engines @@ -2368,7 +2382,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Stress Test TiDB Using TiUP Bench Component](/tiup/tiup-bench.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_isolation_read_engines-new-in-v40) - [TiFlash Compatibility Notes](/tiflash/tiflash-compatibility.md) - [Use FastScan](/tiflash/use-fastscan.md) - [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) @@ -2378,7 +2392,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_last_plan_replayer_token-new-in-v630) - [Use PLAN REPLAYER to Save and Restore the On-Site Information of a Cluster](/sql-plan-replayer.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -2386,7 +2400,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_last_query_info-new-in-v4014) - [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -2395,7 +2409,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_load_based_replica_read_threshold-new-in-v700) - [Troubleshoot Hotspot Issues](/troubleshoot-hot-spot-issues.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2404,14 +2418,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_load_binding_timeout-new-in-v800) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_lock_unchanged_keys Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_lock_unchanged_keys-new-in-v711-and-v730) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 7.1.1 Release Notes](/releases/release-7.1.1.md) @@ -2420,7 +2434,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_log_file_max_days-new-in-v530) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_low_resolution_tso @@ -2428,7 +2442,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_low_resolution_tso) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -2440,7 +2454,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_low_resolution_tso_update_interval-new-in-v800) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_max_auto_analyze_time @@ -2448,14 +2462,14 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_auto_analyze_time-new-in-v610) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_max_bytes_before_tiflash_external_group_by Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_bytes_before_tiflash_external_group_by-new-in-v700) - [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2463,7 +2477,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_bytes_before_tiflash_external_join-new-in-v700) - [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2471,7 +2485,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_bytes_before_tiflash_external_sort-new-in-v700) - [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2480,7 +2494,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_chunk_size) - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) @@ -2495,7 +2509,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL FAQs](/faq/sql-faq.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_delta_schema_count-new-in-v2118-and-v305) - [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) - [TiDB 2.1.18 Release Notes](/releases/release-2.1.18.md) @@ -2503,7 +2517,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_paging_size-new-in-v630) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_max_tiflash_threads @@ -2512,7 +2526,7 @@ Referenced in: - [Configure TiFlash](/tiflash/tiflash-configuration.md) - [Modify Configuration Dynamically](/dynamic-config.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_max_tiflash_threads-new-in-v610) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -2522,7 +2536,7 @@ Referenced in: Referenced in: - [Non-Transactional DML Statements](/non-transactional-dml.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_mem_oom_action-new-in-v610) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -2533,7 +2547,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_mem_quota_analyze-new-in-v610) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) @@ -2546,7 +2560,7 @@ Referenced in: Referenced in: - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_mem_quota_binding_cache-new-in-v600) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_mem_quota_query @@ -2560,7 +2574,7 @@ Referenced in: - [Non-Transactional DML Statements](/non-transactional-dml.md) - [Optimizer Hints](/optimizer-hints.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_mem_quota_query) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Memory Control](/configure-memory-usage.md) @@ -2590,7 +2604,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_memory_usage_alarm_keep_record_num-new-in-v640) - [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -2599,7 +2613,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_memory_usage_alarm_ratio) - [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -2608,7 +2622,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_merge_partition_stats_concurrency) - [TiDB 7.5.0 Release Notes](/releases/release-7.5.0.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.9 Release Notes](/releases/release-6.5.9.md) @@ -2620,7 +2634,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Metrics Schema](/metrics-schema.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_metric_query_range_duration-new-in-v40) ### tidb_metric_query_step @@ -2629,13 +2643,13 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Metrics Schema](/metrics-schema.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_metric_query_step-new-in-v40) ### tidb_min_paging_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_min_paging_size-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_multi_statement_mode @@ -2644,7 +2658,7 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [Integrate TiDB Cloud with n8n](https://docs.pingcap.com/tidbcloud/integrate-tidbcloud-with-n8n) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_multi_statement_mode-new-in-v4011) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.1.4 Release Notes](/releases/release-7.1.4.md) - [TiDB 6.5.8 Release Notes](/releases/release-6.5.8.md) @@ -2657,7 +2671,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_non_prepared_plan_cache_size) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -2667,14 +2681,14 @@ Referenced in: Referenced in: - [Non-Transactional DML Statements](/non-transactional-dml.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_nontransactional_ignore_error-new-in-v610) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_opt_advanced_join_hint Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_advanced_join_hint-new-in-v700) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_opt_agg_push_down @@ -2682,7 +2696,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_agg_push_down) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -2699,14 +2713,14 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_concurrency_factor) ### tidb_opt_copcpu_factor Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_copcpu_factor) ### tidb_opt_correlation_exp_factor @@ -2714,7 +2728,7 @@ Referenced in: - [Introduction to Extended Statistics](/extended-statistics.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_correlation_exp_factor) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) ### tidb_opt_correlation_threshold @@ -2723,21 +2737,21 @@ Referenced in: - [Introduction to Extended Statistics](/extended-statistics.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_correlation_threshold) ### tidb_opt_cpu_factor Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_cpu_factor) ### tidb_opt_derive_topn Referenced in: - [Derive TopN or Limit from Window Functions](/derive-topn-from-window.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_derive_topn-new-in-v700) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2746,14 +2760,14 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_desc_factor) ### tidb_opt_disk_factor Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_disk_factor) ### tidb_opt_distinct_agg_push_down @@ -2761,7 +2775,7 @@ Referenced in: - [Distinct Optimization](/agg-distinct-optimization.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_distinct_agg_push_down) - [TiDB Configuration File](/tidb-configuration-file.md) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) @@ -2770,7 +2784,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_enable_correlation_adjustment) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) ### tidb_opt_enable_fuzzy_binding @@ -2778,7 +2792,7 @@ Referenced in: Referenced in: - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_enable_fuzzy_binding-new-in-v760) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) ### tidb_opt_enable_hash_join @@ -2786,7 +2800,7 @@ Referenced in: Referenced in: - [Optimizer Hints](/optimizer-hints.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_enable_hash_join-new-in-v656-v712-and-v740) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.1.2 Release Notes](/releases/release-7.1.2.md) - [TiDB 6.5.6 Release Notes](/releases/release-6.5.6.md) @@ -2795,7 +2809,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_enable_late_materialization-new-in-v700) - [TiFlash Late Materialization](/tiflash/tiflash-late-materialization.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -2804,7 +2818,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_enable_mpp_shared_cte_execution-new-in-v720) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -2812,7 +2826,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_enable_non_eval_scalar_subquery-new-in-v730) - [`EXPLAIN`](/sql-statements/sql-statement-explain.md) - [`EXPLAIN` Walkthrough](/explain-walkthrough.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -2824,7 +2838,7 @@ Referenced in: - [Control Execution Plan](/control-execution-plan.md) - [Optimizer Fix Controls](/optimizer-fix-controls.md) - [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_fix_control-new-in-v653-and-v710) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -2833,7 +2847,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_force_inline_cte-new-in-v630) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -2844,7 +2858,7 @@ Referenced in: - [Optimizer Hints](/optimizer-hints.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Subquery Related Optimizations](/subquery-optimization.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_insubq_to_join_and_agg) - [TiDB 3.0 Beta Release Notes](/releases/release-3.0-beta.md) ### tidb_opt_join_reorder_threshold @@ -2853,7 +2867,7 @@ Referenced in: - [Introduction to Join Reorder](/join-reorder.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_join_reorder_threshold) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -2861,7 +2875,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_limit_push_down_threshold) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) ### tidb_opt_memory_factor @@ -2869,7 +2883,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_memory_factor) ### tidb_opt_network_factor @@ -2877,13 +2891,13 @@ Referenced in: - [Index Selection](/choose-index.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_network_factor) ### tidb_opt_objective Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_objective-new-in-v740) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 7.5.2 Release Notes](/releases/release-7.5.2.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -2892,42 +2906,42 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_ordering_index_selectivity_ratio-new-in-v800) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_opt_ordering_index_selectivity_threshold Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_ordering_index_selectivity_threshold-new-in-v700) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_opt_prefer_range_scan Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_prefer_range_scan-new-in-v50) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_opt_prefix_index_single_scan Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_prefix_index_single_scan-new-in-v640) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_opt_projection_push_down Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_projection_push_down-new-in-v610) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tidb_opt_range_max_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_range_max_size-new-in-v640) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) ### tidb_opt_scan_factor @@ -2935,7 +2949,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_scan_factor) ### tidb_opt_seek_factor @@ -2943,20 +2957,20 @@ Referenced in: - [Index Selection](/choose-index.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_seek_factor) ### tidb_opt_skew_distinct_agg Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_skew_distinct_agg-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_opt_three_stage_distinct_agg Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_three_stage_distinct_agg-new-in-v630) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) ### tidb_opt_use_invisible_indexes @@ -2965,7 +2979,7 @@ Referenced in: - [ALTER INDEX](/sql-statements/sql-statement-alter-index.md) - [CREATE INDEX](/sql-statements/sql-statement-create-index.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_use_invisible_indexes-new-in-v800) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) ### tidb_opt_write_row_id @@ -2974,7 +2988,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_opt_write_row_id) - [TiDB 2.1 RC5 Release Notes](/releases/release-2.1-rc.5.md) ### tidb_optimizer_selectivity_level @@ -2982,7 +2996,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_optimizer_selectivity_level) ### tidb_partition_prune_mode @@ -2990,7 +3004,7 @@ Referenced in: - [Partitioning](/partitioned-table.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_partition_prune_mode-new-in-v51) - [TiFlash Upgrade Guide](/tiflash-upgrade-guide.md) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) @@ -3003,7 +3017,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_persist_analyze_options-new-in-v540) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -3011,7 +3025,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_pessimistic_txn_fair_locking-new-in-v700) - [Troubleshoot Lock Conflicts](/troubleshoot-lock-conflicts.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -3021,14 +3035,14 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_placement_mode-new-in-v600) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_plan_cache_invalidation_on_fresh_stats Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_plan_cache_invalidation_on_fresh_stats-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_plan_cache_max_plan_size @@ -3037,7 +3051,7 @@ Referenced in: - [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_plan_cache_max_plan_size-new-in-v710) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) ### tidb_pprof_sql_cpu @@ -3046,21 +3060,21 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_pprof_sql_cpu-new-in-v40) - [TiDB 3.0.10 Release Notes](/releases/release-3.0.10.md) ### tidb_pre_split_regions Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_pre_split_regions-new-in-v840) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_prefer_broadcast_join_by_exchange_data_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_prefer_broadcast_join_by_exchange_data_size-new-in-v710) - [Use TiFlash MPP Mode](/tiflash/use-tiflash-mpp-mode.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -3069,14 +3083,14 @@ Referenced in: Referenced in: - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_prepared_plan_cache_memory_guard_ratio-new-in-v610) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) ### tidb_prepared_plan_cache_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_prepared_plan_cache_size-new-in-v610) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3087,7 +3101,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_projection_concurrency) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_query_log_max_len @@ -3096,7 +3110,7 @@ Referenced in: - [Identify Slow Queries](/identify-slow-queries.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_query_log_max_len) - [TiDB Cloud Release Notes in 2022](https://docs.pingcap.com/tidbcloud/release-notes-2022) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) - [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) @@ -3107,7 +3121,7 @@ Referenced in: Referenced in: - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_rc_read_check_ts-new-in-v600) - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) @@ -3118,7 +3132,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_rc_write_check_ts-new-in-v630) - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -3128,7 +3142,7 @@ Referenced in: - [Read Historical Data Using the `tidb_read_staleness` System Variable](/tidb-read-staleness.md) - [Stale Read](/develop/dev-guide-use-stale-read.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_read_staleness-new-in-v540) - [Usage Scenarios of Stale Read](/stale-read.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -3140,7 +3154,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Modify Configuration Dynamically](/dynamic-config.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_record_plan_in_slow_log) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 3.0.5 Release Notes](/releases/release-3.0.5.md) @@ -3153,7 +3167,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Log Redaction](/log-redaction.md) - [Non-Transactional DML Statements](/non-transactional-dml.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_redact_log) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) - [TiDB 8.1.1 Release Notes](/releases/release-8.1.1.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) @@ -3166,14 +3180,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_regard_null_as_point-new-in-v540) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_remove_orderby_in_subquery Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_remove_orderby_in_subquery-new-in-v610) - [TiDB 7.2.0 Release Notes](/releases/release-7.2.0.md) ### tidb_replica_read @@ -3186,7 +3200,7 @@ Referenced in: - [Local Read under Three Data Centers Deployment](/best-practices/three-dc-local-read.md) - [Optimizer Hints](/optimizer-hints.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_replica_read-new-in-v40) - [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3200,7 +3214,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_request_source_type-new-in-v740) - [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -3211,7 +3225,7 @@ Referenced in: - [Optimizer Hints](/optimizer-hints.md) - [Privilege Management](/privilege-management.md) - [SET RESOURCE GROUP](/sql-statements/sql-statement-set-resource-group.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_resource_control_strict_mode-new-in-v820) - [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) @@ -3221,7 +3235,8 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Privilege Management](/privilege-management.md) -- [System Variables](/system-variables.md) +- [Replicate Data to MySQL-compatible Databases](/ticdc/ticdc-sink-to-mysql.md) +- [System Variables](/system-variables.md#tidb_restricted_read_only-new-in-v520) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) - [TiDB 5.3.1 Release Notes](/releases/release-5.3.1.md) @@ -3231,7 +3246,7 @@ Referenced in: Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_retry_limit) - [TiDB Optimistic Transaction Model](/optimistic-transaction.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Transactions](/transaction-overview.md) @@ -3245,7 +3260,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_row_format_version) - [TiDB 4.0.13 Release Notes](/releases/release-4.0.13.md) ### tidb_runtime_filter_mode @@ -3253,7 +3268,7 @@ Referenced in: Referenced in: - [Runtime Filter](/runtime-filter.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_runtime_filter_mode-new-in-v720) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) @@ -3262,7 +3277,7 @@ Referenced in: Referenced in: - [Runtime Filter](/runtime-filter.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_runtime_filter_type-new-in-v720) ### tidb_scatter_region @@ -3272,7 +3287,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_scatter_region) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.1.7 Release Notes](/releases/release-6.1.7.md) @@ -3283,7 +3298,7 @@ Referenced in: Referenced in: - [Schema Cache](/schema-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_schema_cache_size-new-in-v800) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) @@ -3293,7 +3308,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_schema_version_cache_limit-new-in-v740) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### tidb_server_memory_limit @@ -3304,7 +3319,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [MEMORY_USAGE](/information-schema/information-schema-memory-usage.md) - [MEMORY_USAGE_OPS_HISTORY](/information-schema/information-schema-memory-usage-ops-history.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_server_memory_limit-new-in-v640) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Memory Control](/configure-memory-usage.md) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) @@ -3324,7 +3339,7 @@ Referenced in: - [IMPORT INTO](/sql-statements/sql-statement-import-into.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_server_memory_limit_gc_trigger-new-in-v640) - [TiDB Memory Control](/configure-memory-usage.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3333,7 +3348,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_server_memory_limit_sess_min_size-new-in-v640) - [TiDB 6.5.2 Release Notes](/releases/release-6.5.2.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3343,8 +3358,10 @@ Referenced in: - [ADMIN SHOW DDL [JOBS|JOB QUERIES]](/sql-statements/sql-statement-admin-show-ddl.md) - [Configuration Options](/command-line-flags-for-tidb-configuration.md) -- [System Variables](/system-variables.md) +- [IMPORT INTO vs. TiDB Lightning](/tidb-lightning/import-into-vs-tidb-lightning.md) +- [System Variables](/system-variables.md#tidb_service_scope-new-in-v740) - [TiDB Distributed eXecution Framework (DXF)](/tidb-distributed-execution-framework.md) +- [TiDB Features](/basic-features.md) - [TiDB Global Sort](/tidb-global-sort.md) - [TiDB 8.1.0 Release Notes](/releases/release-8.1.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) @@ -3355,7 +3372,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_session_alias-new-in-v740) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) ### tidb_session_plan_cache_size @@ -3364,7 +3381,7 @@ Referenced in: - [SQL Non-Prepared Execution Plan Cache](/sql-non-prepared-plan-cache.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_session_plan_cache_size-new-in-v710) - [TiDB Cloud Sysbench Performance Test Report for TiDB v8.1.0](https://docs.pingcap.com/tidbcloud/v8.1-performance-benchmarking-with-sysbench) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) @@ -3373,7 +3390,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_shard_row_id_bits-new-in-v840) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) ### tidb_simplified_metrics @@ -3381,13 +3398,13 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_simplified_metrics) ### tidb_skip_ascii_check Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_skip_ascii_check-new-in-v50) - [TiDB 5.0 Release Notes](/releases/release-5.0.0.md) ### tidb_skip_isolation_level_check @@ -3397,7 +3414,7 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_skip_isolation_level_check) - [Transaction overview](/develop/dev-guide-transaction-overview.md) - [TiDB 5.1.4 Release Notes](/releases/release-5.1.4.md) - [TiDB 3.0.0-rc.1 Release Notes](/releases/release-3.0.0-rc.1.md) @@ -3408,7 +3425,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_skip_missing_partition_stats-new-in-v730) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tidb_skip_utf8_check @@ -3418,7 +3435,7 @@ Referenced in: - [Character Set and Collation](/character-set-and-collation.md) - [DM Advanced Task Configuration File](/dm/task-configuration-file-full.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_skip_utf8_check) - [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md) - [Upgrade and After Upgrade FAQs](/faq/upgrade-faq.md) @@ -3433,7 +3450,7 @@ Referenced in: - [Quick Start with TiDB Self-Managed](/quick-start-with-tidb.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_slow_log_threshold) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Deployment FAQs](/faq/deploy-and-maintain-faq.md) - [TiDB 2.1 GA Release Notes](/releases/release-2.1-ga.md) @@ -3446,7 +3463,7 @@ Referenced in: - [Identify Slow Queries](/identify-slow-queries.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_slow_query_file) ### tidb_snapshot @@ -3460,7 +3477,7 @@ Referenced in: - [Read Historical Data Using the System Variable `tidb_snapshot`](/read-historical-data.md) - [Replicate Data to Kafka](/ticdc/ticdc-sink-to-kafka.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_snapshot) - [Temporary Tables](/temporary-tables.md) - [TiDB Features](/basic-features.md) - [Use Dumpling to Export Data](/dumpling-overview.md) @@ -3481,14 +3498,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_source_id-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_stats_cache_mem_quota Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stats_cache_mem_quota-new-in-v610) - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) @@ -3498,7 +3515,7 @@ Referenced in: Referenced in: - [Introduction to Statistics](/statistics.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stats_load_pseudo_timeout-new-in-v540) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) @@ -3508,7 +3525,7 @@ Referenced in: - [Introduction to Statistics](/statistics.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stats_load_sync_wait-new-in-v540) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) @@ -3519,7 +3536,7 @@ Referenced in: Referenced in: - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_enable_persistent-new-in-v660) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3528,7 +3545,7 @@ Referenced in: Referenced in: - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_file_max_backups-new-in-v660) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3537,7 +3554,7 @@ Referenced in: Referenced in: - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_file_max_days-new-in-v660) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3546,7 +3563,7 @@ Referenced in: Referenced in: - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_file_max_size-new-in-v660) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3555,7 +3572,7 @@ Referenced in: Referenced in: - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_filename-new-in-v660) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3566,7 +3583,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_history_size-new-in-v40) ### tidb_stmt_summary_internal_query @@ -3575,7 +3592,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_internal_query-new-in-v40) ### tidb_stmt_summary_max_sql_length @@ -3586,7 +3603,7 @@ Referenced in: - [SLOW_QUERY](/information-schema/information-schema-slow-query.md) - [Slow Queries Page of TiDB Dashboard](/dashboard/dashboard-slow-query.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_max_sql_length-new-in-v40) ### tidb_stmt_summary_max_stmt_count @@ -3596,7 +3613,7 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Statements Page of TiDB Dashboard](/dashboard/dashboard-statement-list.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_max_stmt_count-new-in-v40) - [TiDB 5.2 Release Notes](/releases/release-5.2.0.md) - [TiDB 5.1.1 Release Notes](/releases/release-5.1.1.md) - [TiDB 5.0.4 Release Notes](/releases/release-5.0.4.md) @@ -3609,13 +3626,13 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Statement Summary Tables](/statement-summary-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_stmt_summary_refresh_interval-new-in-v40) ### tidb_store_batch_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_store_batch_size) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) - [TiDB 6.6.0 Release Notes](/releases/release-6.6.0.md) @@ -3625,14 +3642,14 @@ Referenced in: - [Error Codes and Troubleshooting](/error-codes.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_store_limit-new-in-v304-and-v40) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) ### tidb_super_read_only Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_super_read_only-new-in-v531) - [TiDB 5.4.1 Release Notes](/releases/release-5.4.1.md) - [TiDB 5.3.1 Release Notes](/releases/release-5.3.1.md) @@ -3640,7 +3657,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_sysdate_is_now-new-in-v600) - [TiDB 8.0.0 Release Notes](/releases/release-8.0.0.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) @@ -3649,7 +3666,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_sysproc_scan_concurrency-new-in-v650) - [TiDB 8.2.0 Release Notes](/releases/release-8.2.0.md) - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3659,14 +3676,14 @@ Referenced in: Referenced in: - [Cached Tables](/cached-tables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_table_cache_lease-new-in-v600) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_tmp_table_max_size Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_tmp_table_max_size-new-in-v530) - [Temporary Tables](/temporary-tables.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -3675,7 +3692,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_top_sql_max_meta_count-new-in-v600) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_top_sql_max_time_series_count @@ -3683,7 +3700,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_top_sql_max_time_series_count-new-in-v600) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tidb_tso_client_batch_max_wait_time @@ -3691,7 +3708,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_tso_client_batch_max_wait_time-new-in-v530) - [TiDB Best Practices on Public Cloud](/best-practices-on-public-cloud.md) - [TiDB 5.3 Release Notes](/releases/release-5.3.0.md) @@ -3699,7 +3716,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_tso_client_rpc_mode-new-in-v840) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) @@ -3708,7 +3725,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_delete_batch_size-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_delete_rate_limit @@ -3716,7 +3733,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_delete_rate_limit-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_delete_worker_count @@ -3725,7 +3742,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_delete_worker_count-new-in-v650) - [TiDB 8.4.0 Release Notes](/releases/release-8.4.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 7.1.6 Release Notes](/releases/release-7.1.6.md) @@ -3736,7 +3753,7 @@ Referenced in: Referenced in: - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_job_enable-new-in-v650) - [TiDB 8.5.0 Release Notes](/releases/release-8.5.0.md) - [TiDB 8.1.2 Release Notes](/releases/release-8.1.2.md) - [TiDB 7.5.5 Release Notes](/releases/release-7.5.5.md) @@ -3748,7 +3765,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_job_schedule_window_end_time-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_job_schedule_window_start_time @@ -3757,7 +3774,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_job_schedule_window_start_time-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_running_tasks @@ -3766,7 +3783,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_running_tasks-new-in-v700) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) ### tidb_ttl_scan_batch_size @@ -3774,7 +3791,7 @@ Referenced in: Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_scan_batch_size-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_ttl_scan_worker_count @@ -3783,14 +3800,14 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Periodically Delete Expired Data Using TTL (Time to Live)](/time-to-live.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_ttl_scan_worker_count-new-in-v650) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) ### tidb_txn_assertion_level Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_txn_assertion_level-new-in-v600) - [Troubleshoot Inconsistency Between Data and Indexes](/troubleshoot-data-inconsistency-errors.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) @@ -3798,14 +3815,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_txn_commit_batch_size-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tidb_txn_entry_size_limit Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_txn_entry_size_limit-new-in-v760) - [TiDB Configuration File](/tidb-configuration-file.md) - [Transaction Restraints](/develop/dev-guide-transaction-restraints.md) - [Troubleshoot TiDB Lightning](/tidb-lightning/troubleshoot-tidb-lightning.md) @@ -3818,7 +3835,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Optimistic Transactions and Pessimistic Transactions](/develop/dev-guide-optimistic-and-pessimistic-transaction.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_txn_mode) - [TiDB Configuration File](/tidb-configuration-file.md) - [TiDB Pessimistic Transaction Mode](/pessimistic-transaction.md) - [Transactions](/transaction-overview.md) @@ -3835,7 +3852,7 @@ Referenced in: - [CREATE [GLOBAL|SESSION] BINDING](/sql-statements/sql-statement-create-binding.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Plan Management (SPM)](/sql-plan-management.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_use_plan_baselines-new-in-v40) ### tidb_wait_split_region_finish @@ -3844,7 +3861,7 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_wait_split_region_finish) ### tidb_wait_split_region_timeout @@ -3853,20 +3870,20 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [Split Region](/sql-statements/sql-statement-split-region.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_wait_split_region_timeout) ### tidb_window_concurrency Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tidb_window_concurrency-new-in-v40) ### tiflash_fastscan Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_fastscan-new-in-v630) - [Use FastScan](/tiflash/use-fastscan.md) - [TiDB 7.0.0 Release Notes](/releases/release-7.0.0.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) @@ -3875,14 +3892,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_fine_grained_shuffle_batch_size-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) ### tiflash_fine_grained_shuffle_stream_count Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_fine_grained_shuffle_stream_count-new-in-v620) - [Tune TiFlash Performance](/tiflash/tune-tiflash-performance.md) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) @@ -3890,14 +3907,14 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_hashagg_preaggregation_mode-new-in-v830) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) ### tiflash_mem_quota_query_per_node Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_mem_quota_query_per_node-new-in-v740) - [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -3905,7 +3922,7 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_query_spill_ratio-new-in-v740) - [TiFlash Spill to Disk](/tiflash/tiflash-spill-disk.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -3914,14 +3931,15 @@ Referenced in: Referenced in: - [Create TiFlash Replicas](/tiflash/create-tiflash-replicas.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tiflash_replica_read-new-in-v730) +- [TiDB Features](/basic-features.md) - [TiDB 7.3.0 Release Notes](/releases/release-7.3.0.md) ### tikv_client_read_timeout Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tikv_client_read_timeout-new-in-v740) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) @@ -3932,7 +3950,7 @@ Referenced in: - [Date and Time Types](/data-type-date-and-time.md) - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [SQL Prepared Execution Plan Cache](/sql-prepared-plan-cache.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#time_zone) - [Time Zone Support](/configure-time-zone.md) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) @@ -3943,7 +3961,7 @@ Referenced in: - [Known Incompatibility Issues with Third-Party Tools](/develop/dev-guide-third-party-tools-compatibility.md) - [SET TRANSACTION](/sql-statements/sql-statement-set-transaction.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#transaction_isolation) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) ### tx_isolation @@ -3951,14 +3969,14 @@ Referenced in: Referenced in: - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#tx_isolation) ### txn_scope Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#txn_scope) - [TiDB Configuration File](/tidb-configuration-file.md) - [Use Resource Control to Achieve Resource Isolation](/tidb-resource-control.md) @@ -3967,7 +3985,7 @@ Referenced in: Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordcheck_user_name-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3977,7 +3995,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passworddictionary-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3988,7 +4006,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [Security Compatibility with MySQL](/security-compatibility-with-mysql.md) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordenable-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -3998,7 +4016,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordlength-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -4008,7 +4026,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordmixed_case_count-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -4018,7 +4036,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordnumber_count-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -4028,7 +4046,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordpolicy-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -4038,7 +4056,7 @@ Referenced in: - [Encryption and Compression Functions](/functions-and-operators/encryption-and-compression-functions.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#validate_passwordspecial_char_count-new-in-v650) - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) @@ -4049,7 +4067,7 @@ Referenced in: - [Best Practices for Developing Java Applications with TiDB](/best-practices/java-app-best-practices.md) - [Connection Pools and Connection Parameters](/develop/dev-guide-connection-parameters.md) - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#wait_timeout) - [TiDB Cluster Management FAQs](/faq/manage-cluster-faq.md) - [TiProxy Overview](/tiproxy/tiproxy-overview.md) - [Timeouts in TiDB](/develop/dev-guide-timeouts-in-tidb.md) @@ -4061,13 +4079,13 @@ Referenced in: Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#warning_count) - [TiDB 2.1 RC1 Release Notes](/releases/release-2.1-rc.1.md) ### windowing_use_high_precision Referenced in: -- [System Variables](/system-variables.md) +- [System Variables](/system-variables.md#windowing_use_high_precision) - [Window Functions](/functions-and-operators/window-functions.md) From 226f8c7a6ece84b33cd0342e3ccedcc1c6dd090a Mon Sep 17 00:00:00 2001 From: qiancai Date: Wed, 8 Jan 2025 11:11:13 +0800 Subject: [PATCH 20/24] remove an extra line --- system-variable-reference.md | 1 - 1 file changed, 1 deletion(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 36fadee6b75a9..47a899f95cb03 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -4088,4 +4088,3 @@ Referenced in: - [System Variables](/system-variables.md#windowing_use_high_precision) - [Window Functions](/functions-and-operators/window-functions.md) - From 61de96f417dc01349be6e59d235881acfe2af9c0 Mon Sep 17 00:00:00 2001 From: Lilian Lee Date: Wed, 8 Jan 2025 11:50:51 +0800 Subject: [PATCH 21/24] Update wording --- system-variable-reference.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index 47a899f95cb03..a7f55b04ec427 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -10,7 +10,7 @@ summary: A list of all TiDB system variables and their references in the documen # System Variable Reference -This document lists all TiDB system variables and the files that reference them in the documentation. View the [System Variables](/system-variables.md) for more details of each variable. +This document lists the documents that reference TiDB system variables. You can view the [System Variables](/system-variables.md) for more details of each variable. ## Variable reference From e507453441c4e387b6b1874fa9464b646d9afaf9 Mon Sep 17 00:00:00 2001 From: Lilian Lee Date: Wed, 8 Jan 2025 11:51:42 +0800 Subject: [PATCH 22/24] Update wording --- system-variable-reference.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index a7f55b04ec427..7c578a2d5cd57 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -10,7 +10,7 @@ summary: A list of all TiDB system variables and their references in the documen # System Variable Reference -This document lists the documents that reference TiDB system variables. You can view the [System Variables](/system-variables.md) for more details of each variable. +This page lists the documents that reference TiDB system variables in documentation. You can view the [System Variables](/system-variables.md) for more details of each variable. ## Variable reference From aacfaf9df6d626fac9281cf1e9a4f77fcc833fe0 Mon Sep 17 00:00:00 2001 From: qiancai Date: Wed, 8 Jan 2025 12:13:54 +0800 Subject: [PATCH 23/24] add variables that are only referenced by the system variables doc --- system-variable-reference.md | 198 +++++++++++++++++++++++++++++++++++ 1 file changed, 198 insertions(+) diff --git a/system-variable-reference.md b/system-variable-reference.md index 47a899f95cb03..00eb777ad9a73 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -295,6 +295,12 @@ Referenced in: - [System Variables](/system-variables.md#cte_max_recursion_depth) - [TiDB 5.1 Release Notes](/releases/release-5.1.0.md) +### datadir + +Referenced in: + +- [System Variables](/system-variables.md#datadir) + ### ddl_slow_threshold Referenced in: @@ -392,6 +398,18 @@ Referenced in: - [Certificate-Based Authentication for Login](/certificate-authentication.md) - [System Variables](/system-variables.md#have_ssl) +### hostname + +Referenced in: + +- [System Variables](/system-variables.md#hostname) + +### identity + +Referenced in: + +- [System Variables](/system-variables.md#identity-new-in-v530) + ### init_connect Referenced in: @@ -463,6 +481,12 @@ Referenced in: - [System Variables](/system-variables.md#last_sql_use_alloc-new-in-v640) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +### license + +Referenced in: + +- [System Variables](/system-variables.md#license) + ### max_allowed_packet Referenced in: @@ -577,6 +601,24 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md#plugin_load) +### port + +Referenced in: + +- [System Variables](/system-variables.md#port) + +### rand_seed1 + +Referenced in: + +- [System Variables](/system-variables.md#rand_seed1) + +### rand_seed2 + +Referenced in: + +- [System Variables](/system-variables.md#rand_seed2) + ### require_secure_transport Referenced in: @@ -599,6 +641,12 @@ Referenced in: - [Limited SQL features on TiDB Cloud](https://docs.pingcap.com/tidbcloud/limited-sql-features) - [System Variables](/system-variables.md#skip_name_resolve-new-in-v520) +### socket + +Referenced in: + +- [System Variables](/system-variables.md#socket) + ### sql_mode Referenced in: @@ -917,6 +965,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_batch_insert) - [TiDB 2.0.6 Release Notes](/releases/release-2.0.6.md) +### tidb_batch_pending_tiflash_count + +Referenced in: + +- [System Variables](/system-variables.md#tidb_batch_pending_tiflash_count-new-in-v60) + ### tidb_broadcast_join_threshold_count Referenced in: @@ -1562,6 +1616,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_enable_index_merge-new-in-v40) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) +### tidb_enable_index_merge_join + +Referenced in: + +- [System Variables](/system-variables.md#tidb_enable_index_merge_join) + ### tidb_enable_inl_join_inner_multi_pattern Referenced in: @@ -1591,6 +1651,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_enable_lazy_cursor_fetch-new-in-v830) - [TiDB 8.3.0 Release Notes](/releases/release-8.3.0.md) +### tidb_enable_legacy_instance_scope + +Referenced in: + +- [System Variables](/system-variables.md#tidb_enable_legacy_instance_scope-new-in-v600) + ### tidb_enable_list_partition Referenced in: @@ -2230,6 +2296,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_guarantee_linearizability-new-in-v50) - [tidb-performance-tuning-config](/tidb-performance-tuning-config.md) +### tidb_hash_exchange_with_new_collation + +Referenced in: + +- [System Variables](/system-variables.md#tidb_hash_exchange_with_new_collation) + ### tidb_hash_join_concurrency Referenced in: @@ -2388,6 +2460,12 @@ Referenced in: - [Use TiDB to Read TiFlash Replicas](/tiflash/use-tidb-to-read-tiflash.md) - [TiDB 4.0.2 Release Notes](/releases/release-4.0.2.md) +### tidb_last_ddl_info + +Referenced in: + +- [System Variables](/system-variables.md#tidb_last_ddl_info-new-in-v600) + ### tidb_last_plan_replayer_token Referenced in: @@ -2405,6 +2483,12 @@ Referenced in: - [TiDB 7.6.0 Release Notes](/releases/release-7.6.0.md) - [TiDB 7.5.1 Release Notes](/releases/release-7.5.1.md) +### tidb_last_txn_info + +Referenced in: + +- [System Variables](/system-variables.md#tidb_last_txn_info-new-in-v409) + ### tidb_load_based_replica_read_threshold Referenced in: @@ -2555,6 +2639,12 @@ Referenced in: - [TiDB 6.5.10 Release Notes](/releases/release-6.5.10.md) - [TiDB 6.1.0 Release Notes](/releases/release-6.1.0.md) +### tidb_mem_quota_apply_cache + +Referenced in: + +- [System Variables](/system-variables.md#tidb_mem_quota_apply_cache-new-in-v50) + ### tidb_mem_quota_binding_cache Referenced in: @@ -2600,6 +2690,18 @@ Referenced in: - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 4.0.10 Release Notes](/releases/release-4.0.10.md) +### tidb_memory_debug_mode_alarm_ratio + +Referenced in: + +- [System Variables](/system-variables.md#tidb_memory_debug_mode_alarm_ratio) + +### tidb_memory_debug_mode_min_heap_inuse + +Referenced in: + +- [System Variables](/system-variables.md#tidb_memory_debug_mode_min_heap_inuse) + ### tidb_memory_usage_alarm_keep_record_num Referenced in: @@ -2618,6 +2720,12 @@ Referenced in: - [Troubleshoot TiDB OOM Issues](/troubleshoot-tidb-oom.md) - [TiDB 6.4.0 Release Notes](/releases/release-6.4.0.md) +### tidb_merge_join_concurrency + +Referenced in: + +- [System Variables](/system-variables.md#tidb_merge_join_concurrency) + ### tidb_merge_partition_stats_concurrency Referenced in: @@ -2652,6 +2760,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_min_paging_size-new-in-v620) - [TiDB 6.2.0 Release Notes](/releases/release-6.2.0.md) +### tidb_mpp_store_fail_ttl + +Referenced in: + +- [System Variables](/system-variables.md#tidb_mpp_store_fail_ttl) + ### tidb_multi_statement_mode Referenced in: @@ -2708,6 +2822,12 @@ Referenced in: - [TiDB 5.1.5 Release Notes](/releases/release-5.1.5.md) - [TiDB 4.0 GA Release Notes](/releases/release-4.0-ga.md) +### tidb_opt_broadcast_cartesian_join + +Referenced in: + +- [System Variables](/system-variables.md#tidb_opt_broadcast_cartesian_join) + ### tidb_opt_concurrency_factor Referenced in: @@ -2885,6 +3005,12 @@ Referenced in: - [SHOW [GLOBAL|SESSION] VARIABLES](/sql-statements/sql-statement-show-variables.md) - [System Variables](/system-variables.md#tidb_opt_memory_factor) +### tidb_opt_mpp_outer_join_fixed_build_side + +Referenced in: + +- [System Variables](/system-variables.md#tidb_opt_mpp_outer_join_fixed_build_side-new-in-v510) + ### tidb_opt_network_factor Referenced in: @@ -2973,6 +3099,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_opt_three_stage_distinct_agg-new-in-v630) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +### tidb_opt_tiflash_concurrency_factor + +Referenced in: + +- [System Variables](/system-variables.md#tidb_opt_tiflash_concurrency_factor) + ### tidb_opt_use_invisible_indexes Referenced in: @@ -3136,6 +3268,12 @@ Referenced in: - [TiDB Transaction Isolation Levels](/transaction-isolation-levels.md) - [TiDB 6.3.0 Release Notes](/releases/release-6.3.0.md) +### tidb_read_consistency + +Referenced in: + +- [System Variables](/system-variables.md#tidb_read_consistency-new-in-v540) + ### tidb_read_staleness Referenced in: @@ -3386,6 +3524,12 @@ Referenced in: - [TiDB 7.4.0 Release Notes](/releases/release-7.4.0.md) - [TiDB 7.1.0 Release Notes](/releases/release-7.1.0.md) +### tidb_shard_allocate_step + +Referenced in: + +- [System Variables](/system-variables.md#tidb_shard_allocate_step-new-in-v50) + ### tidb_shard_row_id_bits Referenced in: @@ -3645,6 +3789,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_store_limit-new-in-v304-and-v40) - [TiDB 5.4 Release Notes](/releases/release-5.4.0.md) +### tidb_streamagg_concurrency + +Referenced in: + +- [System Variables](/system-variables.md#tidb_streamagg_concurrency) + ### tidb_super_read_only Referenced in: @@ -3703,6 +3853,12 @@ Referenced in: - [System Variables](/system-variables.md#tidb_top_sql_max_time_series_count-new-in-v600) - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) +### tidb_track_aggregate_memory_usage + +Referenced in: + +- [System Variables](/system-variables.md#tidb_track_aggregate_memory_usage) + ### tidb_tso_client_batch_max_wait_time Referenced in: @@ -3955,6 +4111,12 @@ Referenced in: - [TiDB 6.0.0 Release Notes](/releases/release-6.0.0-dmr.md) - [TiDB 2.1.8 Release Notes](/releases/release-2.1.8.md) +### timestamp + +Referenced in: + +- [System Variables](/system-variables.md#timestamp) + ### transaction_isolation Referenced in: @@ -3971,6 +4133,18 @@ Referenced in: - [Performance Tuning Practices for OLTP Scenarios](/performance-tuning-practices.md) - [System Variables](/system-variables.md#tx_isolation) +### tx_isolation_one_shot + +Referenced in: + +- [System Variables](/system-variables.md#tx_isolation_one_shot) + +### tx_read_ts + +Referenced in: + +- [System Variables](/system-variables.md#tx_read_ts) + ### txn_scope Referenced in: @@ -4060,6 +4234,30 @@ Referenced in: - [TiDB Password Management](/password-management.md) - [TiDB 6.5.0 Release Notes](/releases/release-6.5.0.md) +### version + +Referenced in: + +- [System Variables](/system-variables.md#version) + +### version_comment + +Referenced in: + +- [System Variables](/system-variables.md#version_comment) + +### version_compile_machine + +Referenced in: + +- [System Variables](/system-variables.md#version_compile_machine) + +### version_compile_os + +Referenced in: + +- [System Variables](/system-variables.md#version_compile_os) + ### wait_timeout Referenced in: From 999e2914294011155c02ecf0d4658b6ebffefee5 Mon Sep 17 00:00:00 2001 From: lilin90 Date: Wed, 8 Jan 2025 15:38:51 +0800 Subject: [PATCH 24/24] Update description --- system-variable-reference.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/system-variable-reference.md b/system-variable-reference.md index d5f71a6e4afef..7f0643abb192e 100644 --- a/system-variable-reference.md +++ b/system-variable-reference.md @@ -10,7 +10,7 @@ summary: A list of all TiDB system variables and their references in the documen # System Variable Reference -This page lists the documents that reference TiDB system variables in documentation. You can view the [System Variables](/system-variables.md) for more details of each variable. +This page lists all TiDB system variables and the documents that reference them in the documentation. You can view [System Variables](/system-variables.md) for more details of each variable. ## Variable reference