DROP RULE

Name

DROP RULE -- remove a rewrite rule

Synopsis

DROP RULE [ IF EXISTS ] name ON table_name [ CASCADE | RESTRICT ]

描述

DROP RULE drops a rewrite rule.

参数

IF EXISTS

Do not throw an error if the rule does not exist. A notice is issued in this case.

name

The name of the rule to drop.

table_name

The name (optionally schema-qualified) of the table or view that the rule applies to.

CASCADE

Automatically drop objects that depend on the rule.

RESTRICT

Refuse to drop the rule if any objects depend on it. This is the default.

例子

To drop the rewrite rule newrule:

DROP RULE newrule ON mytable;

兼容性

DROP RULE is a PostgreSQL language extension, as is the entire query rewrite system.

参见

CREATE RULE, ALTER RULE