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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.