55.46. pg_rewrite
 The catalog pg_rewrite stores rewrite rules for tables and views. 
Table 55.46. pg_rewrite Columns
Column Type Description  | 
|---|
 Row identifier  | 
 Rule name  | 
 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   | 
Note
pg_class.relhasrules must be true if a table has any rules in this catalog.