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tidb-serverv0.0.0

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@bb7133 bb7133 released this 28 Aug 03:48
v0.0.0
c14d214

Compatibility Changes

  • Change drop partition and truncate partition's job arguments to support the ID array of multiple partitions #18930
  • Add the delete-only state for checking add partition replicas #18865

Improvements

  • Optimize the performance of DecodePlan for big union queries #18941
  • Reduce the number of GC lock scans when meeting the Region cache miss error #18876
  • Ease the impact of statistical feedback on cluster performance #18772
  • Support canceling operations before the RPC response is returned #18580
  • Add the HTTP API to generate the TiDB metric profile #18531
  • Support scattering partitioned tables #17863
  • Add detailed memory usage of each instance in Grafana #18679
  • Show the detailed runtime information of the BatchPointGet executor in the result of EXPLAIN #18892
  • Show the detailed runtime information of the PointGet executor in the result of EXPLAIN #18817
  • Warn the potential deadlock for Consume in remove() #18395
  • Support the Action when memory exceed quota for TableReader Executor #18392
  • Refine the behaviors of StrToInt and StrToFloat and support converting JSON to the date, time, and timestamp types #18159
  • Support limiting the memory usage of the TableReader executor #18392
  • Avoid too many times of backoff when retrying the batch cop request #18999
  • Improve compatibility for ALTER TABLE algorithms #19270
  • Make the single partitioned table support IndexJoin on the inner side #19151
  • Support searching the log file even when the log includes invalid lines #18579

Bug Fixes

  • Fix the should ensure all columns have the same length error that occurs because the ErrTruncate/Overflow error is incorrectly handled in the builtinCastRealAsDecimalSig function #18967
  • Fix the issue that the pre_split_regions table option does not work in the partitioned table #18837
  • Fixe the issue that might cause a large transaction to be terminated prematurely #18813
  • Fix the issue that using the collation functions get wrong query results #18735
  • Fix the bug that the getAutoIncrementID() function does not consider the tidb_snapshot session variable, which might cause the dumper tool to fail with the table not exist error #18692
  • Fix the unknown column error for SQL statement like select a from t having t.a #18434
  • Fix the panic issue that writing the 64-bit unsigned type into the hash partitioned table causes overflow and gets an unexpected negative number when the partition key is the integer type #18186
  • Fix the wrong behavior of the char function #18122
  • Fix the issue that the ADMIN REPAIR TABLE statement cannot parse integer in the expressions on the range partition #17988
  • Fix the wrong behavior of the SET CHARSET statement #17289
  • Fix the bug caused by the wrong collation setting which leads to the wrong result of the collation function #17231
  • Fix the issue that STR_TO_DATE's handling of the format tokens '%r', '%h' is inconsistent with that of MySQL #18727
  • Fix issues that the TiDB version information is inconsistent with that of PD/TiKV in the cluster_info table #18413
  • Fix the existent checks for pessimistic transactions #19004
  • Fix the issue that executing union select for update might cause concurrent race #19006
  • Fix the wrong query result when apply has a child of the PointGet operator #19046
  • Fix the incorrect result that occurs when IndexLookUp is in the inner side of the Apply operator #19496
  • Fix the incorrect result of anti-semi-join queries #19472
  • Fix the incorrect result caused by the mistaken usage of BatchPointGet #19456
  • Fix the incorrect result that occurs when UnionScan is in the inner side of the Apply operator #19447
  • Fix the panic caused by using the EXECUTE statement to print an expensive query log #17419
  • Fix the index join error when the join key is ENUM or SET #19235
  • Fix the issue that the query range cannot be built when the NULL value exists on the index column #19358
  • Fix the data race issue caused by updating the global configuration #17964
  • Fix the panic issue caused when modifying the character set in an uppercase schema #19286
  • Fix an unexpected error caused by changing the temporary directory during the disk spill action #18970
  • Fix the wrong hash key for the decimal type #19131
  • Fix the issue that the PointGet and BatchPointGet operators do not consider the partition selection syntax and get incorrect results #19141
  • Fix the incorrect results when using the Apply operator together with the UnionScan operator #19104
  • Fix the bug that causes the indexed virtual generated column to return wrong value #17989
  • Add the lock for runtime statistics to fix a panic caused by concurrent execution #18983
  • Check ErrTruncate/Overflow locally for builtinCastRealAsDecimalSig to fix the should ensure all columns have the same length error #18961
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