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PostgreSQL 7.4.30 Documentation
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CREATE CONSTRAINT TRIGGER

Name

CREATE CONSTRAINT TRIGGER -- define a new constraint trigger

Synopsis

CREATE CONSTRAINT TRIGGER name
    AFTER events ON
    tablename constraint attributes
    FOR EACH ROW EXECUTE PROCEDURE funcname ( args )

Description

CREATE CONSTRAINT TRIGGER is used within CREATE TABLE/ALTER TABLE and by pg_dump to create the special triggers for referential integrity. It is not intended for general use.

Parameters

name: The name of the constraint trigger.
events: The event categories for which this trigger should be fired.
tablename: The name (possibly schema-qualified) of the table in which the triggering events occur.
constraint: Actual constraint specification.
attributes: The constraint attributes.
funcname(args): The function to call as part of the trigger processing.

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