DROP BROADCAST TABLE RULE 语法用于为指定的广播表删除广播规则
DropBroadcastTableRule ::=
'DROP' 'BROADCAST' 'TABLE' 'RULE' tableName (',' tableName)*
tableName ::=
identifier
tableName 可使用已经存在的广播规则的表。DROP BROADCAST TABLE RULE t_province, t_city;
DROP、BROADCAST、TABLE、RULE