Postgresql 中文操作指南

DROP RULE

DROP RULE — 删除一条重写规则

DROP RULE — remove a rewrite rule

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

DROP RULE 删除一条重写规则。

DROP RULE drops a rewrite rule.

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, and in turn all objects that depend on those objects (see Section 5.14).
RESTRICT
- Refuse to drop the rule if any objects depend on it. This is the default.

要删除重写规则 newrule :

To drop the rewrite rule newrule:

DROP RULE newrule ON mytable;

DROP RULE 是 PostgreSQL 语言扩展，整个查询重写系统也是如此。

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