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Co-authored-by: xixirangrang <[email protected]>

information-schema/information-schema-tidb-index-usage.md

@@ -1,6 +1,6 @@
 ---
 title: TIDB_INDEX_USAGE
-summary: Learn the `TIDB_INDEX_USAGE` information_schema table.
+summary: Learn the `TIDB_INDEX_USAGE` INFORMATION_SCHEMA table.
 ---
 
 # TIDB_INDEX_USAGE

information-schema/information-schema.md

@@ -123,8 +123,8 @@ Many `INFORMATION_SCHEMA` tables have a corresponding `SHOW` command. The benefi
 | `CLUSTER_SLOW_QUERY`                                                                    | Provides a cluster-level view of the `SLOW_QUERY` table. This table is not available on [TiDB Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-serverless) clusters. |
 | `CLUSTER_STATEMENTS_SUMMARY`                                                            | Provides a cluster-level view of the `STATEMENTS_SUMMARY` table. This table is not available on [TiDB Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-serverless) clusters. |
 | `CLUSTER_STATEMENTS_SUMMARY_HISTORY`                                                    | Provides a cluster-level view of the `STATEMENTS_SUMMARY_HISTORY` table. This table is not available on [TiDB Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-serverless) clusters. |
-| `CLUSTER_TIDB_TRX` | Provides a cluster-level view of the `TIDB_TRX` table. |
 | `CLUSTER_TIDB_INDEX_USAGE` | Provides a cluster-level view of the `TIDB_INDEX_USAGE` table. |
+| `CLUSTER_TIDB_TRX` | Provides a cluster-level view of the `TIDB_TRX` table. |
 | [`CLUSTER_SYSTEMINFO`](/information-schema/information-schema-cluster-systeminfo.md)    | Provides details about kernel parameter configuration for servers in the cluster. This table is not applicable to TiDB Cloud. |
 | [`DATA_LOCK_WAITS`](/information-schema/information-schema-data-lock-waits.md) | Provides the lock-waiting information on the TiKV server. |
 | [`DDL_JOBS`](/information-schema/information-schema-ddl-jobs.md)                        | Provides similar output to `ADMIN SHOW DDL JOBS` |
@@ -146,9 +146,9 @@ Many `INFORMATION_SCHEMA` tables have a corresponding `SHOW` command. The benefi
 | [`TIDB_HOT_REGIONS`](/information-schema/information-schema-tidb-hot-regions.md)        | Provides statistics about which regions are hot. |
 | [`TIDB_HOT_REGIONS_HISTORY`](/information-schema/information-schema-tidb-hot-regions-history.md) | Provides history statistics about which Regions are hot. |
 | [`TIDB_INDEXES`](/information-schema/information-schema-tidb-indexes.md)                | Provides index information about TiDB tables. |
+| [`TIDB_INDEX_USAGE`](/information-schema/information-schema-tidb-index-usage.md)        | Provides the information of the index usage statistics on the TiDB node. ｜
 | [`TIDB_SERVERS_INFO`](/information-schema/information-schema-tidb-servers-info.md)      | Provides a list of TiDB servers (namely, tidb-server component) |
 | [`TIDB_TRX`](/information-schema/information-schema-tidb-trx.md) | Provides the information of the transactions that are being executed on the TiDB node. |
-| [`TIDB_INDEX_USAGE`](/information-schema/information-schema-tidb-index-usage.md)        | Provides the information of the index usage statistics on the TiDB node. ｜
 | [`TIFLASH_REPLICA`](/information-schema/information-schema-tiflash-replica.md)          | Provides details about TiFlash replicas. |
 | [`TIKV_REGION_PEERS`](/information-schema/information-schema-tikv-region-peers.md)      | Provides details about where regions are stored. |
 | [`TIKV_REGION_STATUS`](/information-schema/information-schema-tikv-region-status.md)    | Provides statistics about regions. |
@@ -198,9 +198,9 @@ Many `INFORMATION_SCHEMA` tables have a corresponding `SHOW` command. The benefi
 | [`TIDB_HOT_REGIONS`](https://docs.pingcap.com/tidb/stable/information-schema-tidb-hot-regions)        | Provides statistics about which regions are hot. This table is not applicable to TiDB Cloud. |
 | [`TIDB_HOT_REGIONS_HISTORY`](/information-schema/information-schema-tidb-hot-regions-history.md) | Provides history statistics about which Regions are hot. |
 | [`TIDB_INDEXES`](/information-schema/information-schema-tidb-indexes.md)                | Provides index information about TiDB tables. |
+| [`TIDB_INDEX_USAGE`](/information-schema/information-schema-tidb-index-usage.md)        | Provides the information of the index usage statistics on the TiDB node. ｜
 | [`TIDB_SERVERS_INFO`](/information-schema/information-schema-tidb-servers-info.md)      | Provides a list of TiDB servers (namely, tidb-server component) |
 | [`TIDB_TRX`](/information-schema/information-schema-tidb-trx.md) | Provides the information of the transactions that are being executed on the TiDB node. |
-| [`TIDB_INDEX_USAGE`](/information-schema/information-schema-tidb-index-usage.md)        | Provides the information of the index usage statistics on the TiDB node. ｜
 | [`TIFLASH_REPLICA`](/information-schema/information-schema-tiflash-replica.md)          | Provides details about TiFlash replicas. |
 | [`TIKV_REGION_PEERS`](/information-schema/information-schema-tikv-region-peers.md)      | Provides details about where regions are stored. |
 | [`TIKV_REGION_STATUS`](/information-schema/information-schema-tikv-region-status.md)    | Provides statistics about regions. |

sys-schema.md

@@ -5,7 +5,7 @@ summary: Learn about the system tables in the `sys` schema.
 
 # `sys` Schema
 
-Starting from v8.0.0, TiDB provides the `sys` Schema. You can use the views in `sys` schema to understand the data in the system tables, [`INFORMATION_SCHEMA`](/information-schema/information-schema.md), and [`PERFORMANCE SCHEMA`](/performance-schema/performance-schema.md) of TiDB.
+Starting from v8.0.0, TiDB provides the `sys` schema. You can use the views in `sys` schema to understand the data in the system tables, [`INFORMATION_SCHEMA`](/information-schema/information-schema.md), and [`PERFORMANCE SCHEMA`](/performance-schema/performance-schema.md) of TiDB.
 
 ## Manually create the `sys` schema and views