DROP SHADOW RULE 语法用于从当前逻辑库中删除影子库压测规则。
DropShadowRule ::=
'DROP' 'SHADOW' 'RULE' ifExists? ruleName (',' ruleName)*
ifExists ::=
'IF' 'EXISTS'
ruleName ::=
identifier
ifExists 子句用于避免 Shadow rule not exists 错误。DROP SHADOW RULE shadow_rule;
DROP SHADOW RULE shadow_rule, shadow_rule_1;
ifExists 子句删除影子库压测规则DROP SHADOW RULE IF EXISTS shadow_rule;
DROP、SHADOW、RULE、IF、EXISTS