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TiDB 1.0.4 Release Notes

On December 11, 2017, TiDB 1.0.4 is released with the following updates:

TiDB

  • Speed up the loading of the statistics when starting the tidb-server
  • Improve the performance of the show variables statement
  • Fix a potential issue when using the Add Index statement to handle the combined indexes
  • Fix a potential issue when using the Rename Table statement to move a table to another database
  • Accelerate the effectiveness for the Alter/Drop User statement

TiKV

  • Fix a possible performance issue when a snapshot is applied
  • Fix the performance issue for reverse scan after removing a lot of data
  • Fix the wrong encoded result for the Decimal type under special circumstances

To upgrade from 1.0.3 to 1.0.4, follow the rolling upgrade order of PD -> TiKV -> TiDB.

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