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@tiancaiamao tiancaiamao released this 05 Jun 07:27
· 138 commits to release-3.0 since this release
v3.0.15
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Learn about vigilant mode.

New Features

  • Forbid the query in partition tables to use the plan cache feature #16759
  • Support the admin recover index and admin check index statements on partition tables #17315 #17390
  • Support partition pruning of the in condition for Range partition tables #17318
  • Optimize the output of SHOW CREATE TABLE, and add quotation marks to the partition name #16315
  • Support the ORDER BY clause in the GROUP_CONCAT function #16988
  • Optimize the memory allocation mechanism of CMSketch statistics to reduce the impact of garbage collection (GC) on performance #17543

Bug Fixes

  • Use deep copy to copy the enum and set type data in the Hash aggregate function; fix an issue of correctness #16890
  • Fix the issue that PointGet returns incorrect results because of the wrong processing logic of integer overflow #16753
  • Fix the issue of incorrect results caused by incorrect processing logic when the CHAR() function is used in the query predicate #16557
  • Fix the issue of inconsistent results in the storage layer and calculation layer of the IsTrue and IsFalse functions #16627
  • Fix the incorrect NotNull flags in some expressions, such as case when #16993
  • Fix the issue that the optimizer cannot find a physical plan for TableDual in some scenarios #17014
  • Fix the issue that the syntax for partition selection does not take effect correctly in the Hash partition table #17051
  • Fix the inconsistent results between TiDB and MySQL when XOR operates on a floating-point number #16976
  • Fix the error that occurs when executing DDL statement in the prepared manner #17415
  • Fix the incorrect processing logic of computing the batch size in ID allocator #17548
  • Fix the issue that the MAX_EXECUTION_TIME SQL hint does not take effect when exceeding the expensive threshold #17534
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