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tidb-server v4.0.16
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@zhouqiang-cl zhouqiang-cl released this 17 Dec 08:26
v4.0.16
75f81d2
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Learn about vigilant mode.

Improvements

  • Upgrade the Grafana version from 7.5.7 to 7.5.11

Bug fixes

  • Fix the query panic caused by overflow in the statistics module when converting a range to points for cost estimation #23625
  • Fix wrong results of the control functions (such as IF and CASE WHEN) when using the ENUM type data as parameters of such functions #23114
  • Fix the issue that the GREATEST function returns inconsistent results due to different values of tidb_enable_vectorized_expression (on or off) #29434
  • Fix the panic when applying index join on prefix indexes in some cases #24547
  • Fix the issue that planner might cache invalid plans for join in some cases #28087
  • Fix a bug that TiDB cannot insert null into a non-null column when sql_mode is empty #11648
  • Fix the wrong result type of the GREATEST and LEAST functions #29019
  • Fix the privilege check fail error when performing the grant and revoke operations to grant and revoke global level privileges #29675
  • Fix the panic when using the CASE WHEN function on the ENUM data type #29357
  • Fix wrong results of the microsecond function in vectorized expressions #29244
  • Fix wrong results of the hour function in vectorized expression #28643
  • Fix the issue that optimistic transaction conflicts might cause transactions to block each other #11148
  • Fix the issue of incomplete log information from the auto analyze result #29188
  • Fix the issue that using an invalid default date does not report an error when the SQL_MODE is 'NO_ZERO_IN_DATE' #26766
  • Fix the issue that the Coprocessor Cache panel in Grafana does not display metrics. Now, Grafana displays the number of hits/miss/evict #26338
  • Fix the issue that concurrently truncating the same partition causes DDL statements to stuck #26229
  • Fix the issue that when the CONCAT function has a negative float type argument, the last digit of the argument number is chopped in the result #29417
  • Fix the issue of an extra column in the query result when NATURAL JOIN is used to join multiple tables #29481
  • Fix the issue that TopN is wrongly pushed down to indexPlan when IndexScan uses a prefix index #29711
  • Fix the issue that retrying transactions with the auto-increment columns of DOUBLE type causes data corruption #29892
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