CLEAR HINT
语法用于针对当前连接,清除 hint 设置
ClearHint ::=
'CLEAR' ('SHARDING'|'READWRITE_SPLITTING')? 'HINT'
SHARDING
/ READWRITE_SPLITTING
时,默认清除所有 hint 设置SHARDING
的 hint 设置CLEAR SHARDING HINT;
READWRITE_SPLITTING
的 hint 设置CLEAR READWRITE_SPLITTING HINT;
CLEAR HINT;
CLEAR
、SHARDING
、READWRITE_SPLITTING
、HINT