Skip to content

tidb-server v4.0.15
Compare
Choose a tag to compare
@zhouqiang-cl zhouqiang-cl released this 27 Sep 01:46
· 24 commits to release-4.0 since this release
v4.0.15
fc92ef9
This commit was created on GitHub.com and signed with GitHub’s verified signature. The key has expired.
GPG key ID: 4AEE18F83AFDEB23
Expired
Learn about vigilant mode.

Compatibility changes

  • Fix the issue that executing SHOW VARIABLES in a new session is slow. This fix reverts some changes made in #21045 and might cause compatibility issues. #24326

Improvements

  • Trigger auto-analyze based on the histogram row count #26706

Bug fixes

  • Fix a bug that collation is incorrectly set for binary literals when building range 26455
  • Fix the issue of wrong character set and collation for the case when expression #26671
  • Fix the "index out of range" error that occurs when a query includes both GROUP BY and UNION 26553
  • Fix the issue that TiDB might fail to send requests if TiKV has tombstone stores #25849
  • Fix the issue of unexpected behavior when casting the invalid string to DATE #27935
  • Fix the issue that column information is missed when converting the Apply operator to Join #27282
  • Fix a bug that the count distinct result on multiple columns is wrong when the new collation is enabled #27830
  • Fix the result wrong that occurs when the argument of the extract function is a negative duration #27236
  • Fix the wrong execution results that occur when the column in the group_concat function has a non-bin collation #27429
  • Fix the wrong execution results that occur when the collations around the between expression are different #27146
  • Fix the issue that greatest(datetime) union null returns empty string #26564
  • Fix the issue that the having clause might not work correctly #26496
  • Remove the undocumented /debug/sub-optimal-plan HTTP API #27264
Assets 2
Loading