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The PostgreSQL 9.0 Reference Manual - Volume 1B - SQL Command Reference
by The PostgreSQL Global Development Group
Paperback (6"x9"), 488 pages
ISBN 9781906966058
RRP £14.95 ($19.95)

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1.101 DROP TRIGGER

Name

DROP TRIGGER -- remove a trigger

Synopsis

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

Description

DROP TRIGGER removes an existing trigger definition. To execute this command, the current user must be the owner of the table for 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
The name (optionally schema-qualified) of the table for which the trigger is defined.
CASCADE
Automatically drop objects that depend on the trigger.
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;

Compatibility

The DROP TRIGGER statement in PostgreSQL is incompatible with the SQL standard. In the SQL standard, trigger names are not local to tables, so the command is simply DROP TRIGGER name.

See Also

CREATE TRIGGER

ISBN 9781906966058The PostgreSQL 9.0 Reference Manual - Volume 1B - SQL Command ReferenceSee the print edition