51.44. pg_rewrite
The catalogpg_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 | | 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 whichsession_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 anINSTEAD rule | |
ev_qual | pg_node_tree | Expression tree (in the form of anodeToString() representation) for the rule's qualifying condition | |
ev_action | pg_node_tree | Query tree (in the form of anodeToString() representation) for the rule's action |
Note
pg_class.relhasrules must be true if a table has any rules in this catalog.