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You are viewing the documentation of an older version of the TiDB database (TiDB v2.1).

It is recommended that you use the latest stable version of the TiDB database.

TiDB 1.0.1 Release Notes

On November 1, 2017, TiDB 1.0.1 is released with the following updates:


  • Support canceling DDL Job.
  • Optimize the IN expression.
  • Correct the result type of the Show statement.
  • Support log slow query into a separate log file.
  • Fix bugs.


  • Support flow control with write bytes.
  • Reduce Raft allocation.
  • Increase coprocessor stack size to 10MB.
  • Remove the useless log from the coprocessor.