On December 22, 2018, TiDB 2.1.2 is released. The corresponding TiDB Ansible 2.1.2 is also released. Compared with TiDB 2.1.1, this release has great improvement in system compatibility and stability.
TIDB_SMJ Hintexists in the SQL statement in some cases #8729
AntiSemiJoinreturns an incorrect result in some cases #8730
utf8character set #8754
d) and fix the configuration compatibility issue #3931
Approximate Size Split#3942
JSONdata in Lightning #144
Too many open enginesoccurs after the checkpoint is used to restart Lightning