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tidb-server v4.0.11
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@sre-bot sre-bot released this 26 Feb 05:39
v4.0.11
058e52a
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New Features

  • Support the utf8_unicode_ci and utf8mb4_unicode_ci collations #22558

Improvements

  • Reorder inner joins that are simplified from outer joins #22402
  • Support multiple clusters in Grafana dashboards #22534
  • Add a workaround for the issue of multiple statements #22468
  • Divide the metrics of slow query into internal and general #22405
  • Add interface for utf8_unicode_ci and utf8mb4_unicode_ci collations #22099

Bug Fixes

  • Fix the issue of abnormal unicode_ci constant propagation #22614
  • Fix the issue that might causes wrong collation and coercibility #22602
  • Fix the issue that might cause wrong collation results #22599
  • Fix the issue of constant substitution for different collations #22582
  • Fix a bug that the like function might return wrong result when using collation #22531
  • Fix the issue of incorrect duration type inference in least and greatest functions #22580
  • Fix a bug that occurs when the like function handles a single character wildcard (_) followed by a multiple character wildcard (%) #22575
  • Fix the error of type inference when comparing TiDB's built-in functions (least and greatest) #22562
  • Fix a bug that makes the like function get the wrong result if the pattern string is a unicode string #22529
  • Fix a bug that the point get query does not get the snapshot data when the @@tidb_snapshot variable is set #22527
  • Fix the potential panic that occurs when generating hints from joins #22518
  • Fix the issue that strings are incorrectly converted to the BIT type #22420
  • Fix the index out of range error that occurs when inserting values to the tidb_rowid column #22359
  • Fix a bug that the cached plan is incorrectly used #22353
  • Fix the runtime panic in the WEIGHT_STRING function when the length of the binary/char string is too large #22332
  • Fix the issue that the generated column is incorrectly used when argument numbers are invalid #22174
  • Correctly set the process information before building the execution plan #22148
  • Fix the issue of inaccurate runtime statistics of IndexLookUp #22136
  • Add cache for the memory usage information when the cluster is deployed in a container #22116
  • Fix the issue that the execution plan is incorrectly decoded #22022
  • Report errors for using invalid window specifications #21976
  • Throw errors when the PREPARE statement is nested with EXECUTE, DEALLOCATE or PREPARE #21972
  • Fix the issue that no error is reported when the INSERT IGNORE statement is used on a non-existing partition #21971
  • Unify the encoding of EXPLAIN results and slow log #21964
  • Fix the issue of unknown column in join when using the aggregate operator #21957
  • Fix the wrong type inference in the ceiling function #21936
  • Fix the issue that the Double type column ignores its decimal #21916
  • Fix the issue that the correlated aggregation is calculated in subqueries #21877
  • Report errors for the JSON object with key length >= 65536 #21870
  • Fix the issue that the dyname function is incompatible with MySQL #21850
  • Fix the issue that the to_base64 function returns NULL when the input data is too long #21813
  • Fix the failure of comparing multiple fields in the subquery #21808
  • Fix the issue that occurs when comparing the float type in JSON #21785
  • Fix the issue that occurs when comparing the types of JSON objects #21718
  • Fix the issue that the coercibility value of the cast function is incorrectly set #21714
  • Fix an unexpected panic when using the IF function #21711
  • Fix the issue that the NULL result returned from JSON search is incompatible with MySQL #21700
  • Fix the issue that occurs when checking the only_full_group_by mode using ORDER BY and HAVING #21697
  • Fix the issue that the units of Day and Time are incompatible with MySQL #21676
  • Fix the issue that LEAD and LAG's default value cannot adapt to the field type #21665
  • Perform a check to ensure that the LOAD DATA statement can only load data into base tables #21638
  • Fix the issue that occurs when addtime and subtime functions handle invalid arguments #21635
  • Change the round rule for approximate values to "round to the nearest even number" #21628
  • Fix the issue that WEEK() does not recognize @@GLOBAL.default_week_format until it has been explicitly read #21623
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