51.21. pg_event_trigger
  The catalog
  
   pg_event_trigger
  
  stores event triggers.
   See
  
   Chapter 38
  
  for more information.
 
   
    Table 51.21. 
    
     pg_event_trigger
    
    Columns
   
  
| Column Type Description | 
|---|
| 
         Row identifier | 
| 
         Trigger name (must be unique) | 
| 
         Identifies the event for which this trigger fires | 
| 
         Owner of the event trigger | 
| 
         The function to be called | 
| 
         
        Controls in which
        
         session_replication_role
        
        modes
       the event trigger fires.
         | 
| 
         Command tags for which this trigger will fire. If NULL, the firing of this trigger is not restricted on the basis of the command tag. |