pingcap/tidb v3.0.19

tidb-server v3.0.19

on GitHub

Improvements

• Mitigate the impact of failure recovery on QPS performance #19764
• Support adjusting the concurrency of the union operator #19885

Bug Fixes

• Fix the query error that occurs when the slow-log file does not exist #20050
• Add the privilege check for SHOW STATS_META and SHOW STATS_BUCKET #19759
• Forbid changing the decimal type to the integer type #19681
• Fix the issue that alter enum/set type does not check constraint #20045
• Fix the bug that tidb-server does not release table locks after a panic #20021
• Fix the bug that the OR operator is not handled correctly in the WHERE clause #19901