DROP TRIGGER

DROP TRIGGER — Remove a trigger

Synopsis

DROP TRIGGER [ IF EXISTS ] name ON table_name [ CASCADE | RESTRICT ]

Description

DROP TRIGGER removes an existing trigger definition. To execute this command, the current user must be the owner of the table on which the trigger is defined.

Parameters

IF EXISTS

Do not throw an error if the trigger does not exist. A notice is issued in this case.

name

The name of the trigger to remove.

table_name

The name of the table on which the trigger is defined (optionally schema-qualified).

CASCADE

Automatically drop objects that depend on the trigger, and in turn all objects that depend on those objects.

RESTRICT

Refuse to drop the trigger if any objects depend on it. This is the default.

Examples

# Destroy the trigger if_dist_exists on the table films:

DROP TRIGGER if_dist_exists ON films;

See Also

CREATE TRIGGER