TiDB 3.0.18 Release Notes

Release date: August 21, 2020

TiDB version: 3.0.18

Improvements

• Tools

  • TiDB Binlog

    • Support the time duration format of Go for the Pump GC configuration #996

Bug Fixes

• TiDB

  • Fix the issue that the wrong handling of the decimal type by the Hash function causes the wrong HashJoin result #19185
  • Fix the issue that the wrong handling of the set and enum types by the Hash function causes the wrong HashJoin result #19175
  • Fix the issue that the check for duplicate keys fails in the pessimistic locking mode #19236
  • Fix the issue that the Apply and Union Scan operators cause the wrong execution result #19297
  • Fix the issue that some cached execution plans are incorrectly executed in transaction #19274

• TiKV

  • Change the GC failure log from error to the warning level #8444

• Tools

  • TiDB Lightning

    • Fix the issue that the --log-file argument does not take effect #345
    • Fix the syntax error on empty binary/hex literals when using TiDB-backend #357
    • Fix the unexpected switch-mode call when using TiDB-backend #368