51.44. pg_rewrite

The catalog pg_rewrite stores rewrite rules for tables and views.

Table 51.44. pg_rewrite Columns

Name	Type	References	Description
oid	oid		Row identifier (hidden attribute; must be explicitly selected)
rulename	name		Rule name
ev_class	oid	pg_class.oid	The table this rule is for
ev_type	char		Event type that the rule is for: 1 = SELECT, 2 = UPDATE, 3 = INSERT, 4 = DELETE
ev_enabled	char		Controls in which session_replication_role modes the rule fires. O = rule fires in “origin” and “local” modes, D = rule is disabled, R = rule fires in “replica” mode, A = rule fires always.
is_instead	bool		True if the rule is an INSTEAD rule
ev_qual	pg_node_tree		Expression tree (in the form of a nodeToString() representation) for the rule's qualifying condition
ev_action	pg_node_tree		Query tree (in the form of a nodeToString() representation) for the rule's action

Note

pg_class.relhasrules must be true if a table has any rules in this catalog.