DROP READWRITE_SPLITTING RULE 语法用于从当前逻辑库中删除读写分离规则。
DropReadwriteSplittingRule ::=
'DROP' 'READWRITE_SPLITTING' 'RULE' ifExists? ruleName (',' ruleName)*
ifExists ::=
'IF' 'EXISTS'
ruleName ::=
identifier
ifExists 子句用于避免 Readwrite-splitting rule not exists 错误。DROP READWRITE_SPLITTING RULE ms_group_1;
DROP READWRITE_SPLITTING RULE ms_group_1, ms_group_2;
ifExists 子句删除读写分离规则DROP READWRITE_SPLITTING RULE IF EXISTS ms_group_1;
DROP、READWRITE_SPLITTING、RULE、IF、EXISTS