DROP RULE

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DROP RULE

Removes a rewrite rule.

Synopsis

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

Description

DROP RULE drops a rewrite rule from a table or view.

Parameters

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 remove.
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.

Examples

Remove the rewrite rule sales_2006 on the table sales:

DROP RULE sales_2006 ON sales;

Compatibility

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