51.43. pg_rewrite
  The catalog
  
   pg_rewrite
  
  stores rewrite rules for tables and views.
 
   
    Table 51.43. 
    
     pg_rewrite
    
    Columns
   
  
| 
        Column Type Description  | 
     
|---|
| 
        
         Row identifier  | 
     
| 
        
         Rule name  | 
     
| 
        
         The table this rule is for  | 
     
| 
        
         
        Event type that the rule is for: 1 =
          | 
     
| 
        
         
        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.