pg_event_trigger
   The catalog pg_event_trigger stores event triggers.
   See Chapter 40 for more information.
  
Table 53.21. 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. |