CREATE CONSTRAINT TRIGGER
Name
   CREATE CONSTRAINT TRIGGER
   --    define a new constraint trigger
  
Synopsis
CREATE CONSTRAINT TRIGGER name
    AFTER events ON
    relation constraint attributes
    FOR EACH ROW EXECUTE PROCEDURE func '(' args ')'
      Inputs
   
		
    
- name
- 	The name of the constraint trigger.
        
- events
- 	The event categories for which this trigger should be fired.
        
- relation
- 	Table name of the triggering relation.
        
- constraint
- 	Actual constraint specification.
        
- attributes
- 	Constraint attributes.
        
- func(args)
- 	Function to call as part of the trigger processing.
        
   
    Outputs
   
    
    
- CREATE CONSTRAINT
       
- 	Message returned if successful.
        
   
   Description
  
   CREATE CONSTRAINT TRIGGER is used from inside of 
   CREATE/ALTER TABLE and by
   pg_dump  to  create  the  special  triggers  for
   referential  integrity.
  
   It is not intended for general use.