ddl: add syntax for setting the cache step of auto id explicitly. (pi…

…ngcap#15409) (pingcap#16287)

server: add drop/truncate table tiflash replica info in /tiflash/repl…

…ica http api (pingcap#15699) (pingcap#16843)

store/tikv: fix TestZeroMinCommitTS (pingcap#16811) (pingcap#16814)

*: fix lost index bug of insert on duplicate key update (pingcap#16672)…

… (pingcap#16690)

Fix issue pingcap#16669

When check the untouched index, we should also check the memory-buffer in the session too.

server: if status address already in use, return an error (pingcap#15177

) (pingcap#16291)

txn: stop more statement executions if pessimistic transaction ttl ma…

…nager timed out (pingcap#15877) (pingcap#15886)

statistic: fix error when fast analyze on only indexes (pingcap#15889) (

pingcap#15968)

*: update ddl query

planner: correct the dbName for hint (pingcap#15319)

server: stop the server when writing binlog failed (pingcap#15324) (p…

…ingcap#15339)