45.32. pg_rewrite

The catalog pg_rewrite stores rewrite rules for tables and views.

Table 45-32. pg_rewrite Columns

NameTypeReferencesDescription
rulenamename Rule name
ev_classoidpg_class.oidThe table this rule is for
ev_attrint2 The column this rule is for (currently, always zero to indicate the whole table)
ev_typechar  Event type that the rule is for: 1 = SELECT, 2 = UPDATE, 3 = INSERT, 4 = DELETE
ev_enabledchar  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_insteadbool True if the rule is an INSTEAD rule
ev_qualtext  Expression tree (in the form of a nodeToString() representation) for the rule's qualifying condition
ev_actiontext  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.