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TiFlash v5.4.0

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@zhouqiang-cl zhouqiang-cl released this 10 Feb 07:21
2b887f0

Improvements

  • Optimize the communication of local operators
  • Increase the non-temporary thread count of gRPC to avoid the frequent creation or destruction of threads

Bug fixes

  • Fix the issue that TiFlash might panic when an MPP query is stopped
  • Fix the issue that queries with the where <string> clause return wrong results
  • Fix the potential issue of data inconsistency that might occur when setting the column type of an integer primary key to a larger range
  • Fix the issue that when an input time is earlier than 1970-01-01 00:00:01 UTC, the behavior of unix_timestamp is inconsistent with that of TiDB or MySQL
  • Fix the issue that TiFlash might return the EstablishMPPConnection error after it is restarted
  • Fix the issue that the CastStringAsDecimal behavior is inconsistent in TiFlash and in TiDB/TiKV
  • Fix the issue that the DB::Exception: Encode type of coprocessor response is not CHBlock error is returned in the query result
  • Fix the issue that the castStringAsReal behavior is inconsistent in TiFlash and in TiDB/TiKV
  • Fix the issue that the returned result of the date_add_string_xxx function in TiFlash is inconsistent with that in MySQL