Merge branch 'v8.1.0/release-notes' of https://github.com/Oreoxmt/docs …

…into pr/17197

releases/release-8.1.0.md

@@ -209,9 +209,9 @@ Compared with the previous LTS 7.5.0, 8.1.0 includes new features, improvements,
     - Improve the MySQL compatibility of expression default values displayed in the output of `SHOW CREATE TABLE` [#52939](https://github.com/pingcap/tidb/issues/52939) @[CbcWestwolf](https://github.com/CbcWestwolf)
     - Support adding multiple indexes concurrently in the ingest mode [#52596](https://github.com/pingcap/tidb/issues/52596) @[lance6716](https://github.com/lance6716)
     - Support configuring the system variable `tidb_service_scope` with various values, enhancing the utilization of the Distributed eXecution Framework [#52441](https://github.com/pingcap/tidb/issues/52441) @[ywqzzy](https://github.com/ywqzzy)
-    - Enhance the handling of DNFs that are always `false` by directly ignoring such filter conditions [#40997](https://github.com/pingcap/tidb/issues/40997) @[hi-rustin](https://github.com/hi-rustin)
+    - Enhance the handling of DNF items that are always `false` by directly ignoring such filter conditions, thus avoiding unnecessary full table scans [#40997](https://github.com/pingcap/tidb/issues/40997) @[hi-rustin](https://github.com/hi-rustin)
     - Do not support setting the system variable `tidb_auto_analyze_ratio` to `0` [#51582](https://github.com/pingcap/tidb/issues/51582) @[hi-rustin](https://github.com/hi-rustin)
-    - Support using Optimizer Fix Controls to remove the limitation that the optimizer does not automatically select Index Merge when the query can select a single index scan method other than a full table scan [#52869](https://github.com/pingcap/tidb/issues/52869) @[time-and-fate](https://github.com/time-and-fate)
+    - Support using Optimizer Fix Controls to remove the limitation that the optimizer does not automatically choose Index Merge for a query when the optimizer can choose the single index scan method (other than full table scan) for the query [#52869](https://github.com/pingcap/tidb/issues/52869) @[time-and-fate](https://github.com/time-and-fate)
     - Add the `total_kv_read_wall_time` metric to the column `execution info` of Coprocessor operators [#28937](https://github.com/pingcap/tidb/issues/28937) @[cfzjywxk](https://github.com/cfzjywxk)
     - (dup): release-7.1.5.md > Improvements> TiDB - Add a timeout mechanism for LDAP authentication to avoid the issue of resource lock (RLock) not being released in time [#51883](https://github.com/pingcap/tidb/issues/51883) @[YangKeao](https://github.com/YangKeao)
 
@@ -272,15 +272,15 @@ Compared with the previous LTS 7.5.0, 8.1.0 includes new features, improvements,
 + TiDB
   <!--tw@Oreoxmt 以下 12 条 -->
     - Fix the issue that executing SQL statements containing tables with multi-valued indexes might return the `Can't find a proper physical plan for this query` error [#49438](https://github.com/pingcap/tidb/issues/49438) @[qw4990](https://github.com/qw4990)
-    - Fix the issue that auto analyze gets stuck after an OOM error occurs [#51993](https://github.com/pingcap/tidb/issues/51993) @[hi-rustin](https://github.com/hi-rustin)
-    - Fix the issue that after using BR to restore a table that has no statistics, the statistics health is still 100% [#29769](https://github.com/pingcap/tidb/issues/29769) @[winoros](https://github.com/winoros)
+    - Fix the issue that automatic statistics collection gets stuck after an OOM error occurs [#51993](https://github.com/pingcap/tidb/issues/51993) @[hi-rustin](https://github.com/hi-rustin)
+    - Fix the issue that after using BR to restore a table that has no statistics, the statistics health of that table is still 100% [#29769](https://github.com/pingcap/tidb/issues/29769) @[winoros](https://github.com/winoros)
     - Fix the issue that TiDB creates statistics for system tables during upgrade [#52040](https://github.com/pingcap/tidb/issues/52040) @[hi-rustin](https://github.com/hi-rustin)
-    - Fix the issue that auto analyze is triggered before the initialization of statistics finishes [#52346](https://github.com/pingcap/tidb/issues/52346) @[hi-rustin](https://github.com/hi-rustin)
-    - Fix the issue that TiDB might crash when `tidb_mem_quota_analyze` is enabled and the memory used by auto analyze exceeds the limit [#52601](https://github.com/pingcap/tidb/issues/52601) @[hawkingrei](https://github.com/hawkingrei)
+    - Fix the issue that automatic statistics collection is triggered before the initialization of statistics finishes [#52346](https://github.com/pingcap/tidb/issues/52346) @[hi-rustin](https://github.com/hi-rustin)
+    - Fix the issue that TiDB might crash when `tidb_mem_quota_analyze` is enabled and the memory used by updating statistics exceeds the limit [#52601](https://github.com/pingcap/tidb/issues/52601) @[hawkingrei](https://github.com/hawkingrei)
     - Fix the issue that the TiDB synchronously loading statistics mechanism retries to load empty statistics indefinitely and prints the `fail to get stats version for this histogram` log [#52657](https://github.com/pingcap/tidb/issues/52657) @[hawkingrei](https://github.com/hawkingrei)
     - Fix the issue that expressions containing different collations might cause the query to panic when the new framework for collations is disabled [#52772](https://github.com/pingcap/tidb/issues/52772) @[wjhuang2016](https://github.com/wjhuang2016)
     - Fix the issue that the `CPS by type` metric displays incorrect values [#52605](https://github.com/pingcap/tidb/issues/52605) @[nolouch](https://github.com/nolouch)
-    - Fix the issue that the null pointer error occurs when querying `INFORMATION_SCHEMA.TIKV_REGION_STATUS` [#52013](https://github.com/pingcap/tidb/issues/52013) @[JmPotato](https://github.com/JmPotato)
+    - Fix the issue that the nil pointer error occurs when you query `INFORMATION_SCHEMA.TIKV_REGION_STATUS` [#52013](https://github.com/pingcap/tidb/issues/52013) @[JmPotato](https://github.com/JmPotato)
     - Fix the incorrect error message displayed when an invalid default value is specified for a column [#51592](https://github.com/pingcap/tidb/issues/51592) @[danqixu](https://github.com/danqixu)
     - Fix the issue that adding indexes in the ingest mode might cause inconsistent data index in some corner cases [#51954](https://github.com/pingcap/tidb/issues/51954) @[lance6716](https://github.com/lance6716)
   <!--tw@lilin90 以下 18 条 -->