CREATE CONSTRAINT TRIGGER SQL - Language Statements CREATE CONSTRAINT TRIGGER Create a trigger to support a constraint 2000-04-13 CREATE CONSTRAINT TRIGGER name AFTER events ON relation constraint attributes FOR EACH ROW EXECUTE PROCEDURE func '(' args ')' 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 onstraint specification. attributes Constraint attributes. func(args) Function to call as part of the trigger processing. CREATE CONSTRAINT Message returned if successful. 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.