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tidb v3.0.12 Release Notes

Release Date: 2020-03-16 // about 4 years ago

  • Compatibility Changes

    • Fix the issue of inaccurate timing of prewrite binlog in slow query log. The original timing field was called Binlog_prewrite_time. After this fix, the name is changed to Wait_prewrite_binlog_time #15276

    🆕 New Features

    • 👌 Support dynamic loading of the replaced certificate file by using the alter instance statement #15080, #15292
    • ➕ Add the cluster-verify-cn configuration item. After configuration, the status service can only be used when with the corresponding CN certificate #15164
    • ➕ Add a flow limiting feature for DDL requests in each TiDB server to reduce the error reporting frequency of DDL request conflicts #15148
    • 👌 Support exiting of the TiDB server when binlog write fails #15339

    🛠 Bugfixes

    • 👉 Make GRANT, REVOKE guarantee atomicity when modifying multiple users #15092
    • 🛠 Fix the issue that the locking of pessimistic lock on the partition table failed to lock the correct row #15114
    • 🔧 Make the error message display according to the value of max-index-length in the configuration when the index length exceeds the limit #15130
    • 🛠 Fix the incorrect decimal point issue of the FROM_UNIXTIME function #15270
    • 🛠 Fix the issue of conflict detection failure or data index inconsistency caused by deleting records written by oneself in a transaction #15176