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TiFlash v5.0.4
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@zhouqiang-cl zhouqiang-cl released this 14 Sep 08:42
v5.0.4
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Improvements

  • Support casting the STRING type to the DOUBLE type
  • Support the STR_TO_DATE() function
  • Optimize the non-joined data in right outer join using multiple threads
  • Support the Cartesian join
  • Support the LEFT() and RIGHT() functions
  • Support automatically invalidating stale Regions in MPP queries
  • Support the ABS() function

Bug Fixes

  • Fix the issue that TiFlash keeps restarting because of the split failure
  • Fix the potential issue that TiFlash cannot delete the delta data
  • Fix a bug that TiFlash adds wrong padding for non-binary characters in the CAST function
  • Fix the issue of incorrect results when handling aggregation queries with complex GROUP BY columns
  • Fix the TiFlash panic issue that occurs under heavy write pressure
  • Fix the panic that occurs when the right jon key is not nullalbe and the left join key is nullable
  • Fix the potential issue that the read-index requests take a long time
  • Fix the panic issue that occurs when the read load is heavy
  • Fix the panic issue that might occur when the Date_Format function is called with the STRING type argument and NULL values
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