pg_rewrite stores rewrite rules for tables and views.
The table this rule is for
Event type that the rule is for: 1 = SELECT, 2 = UPDATE, 3 = INSERT, 4 = DELETE
Controls in which session_replication_role modes the rule fires.
True if the rule is an
Expression tree (in the form of a
Query tree (in the form of a
pg_class.relhasrules must be true if a table has any rules in this catalog.