PostgreSQL 9.6.9 Documentation
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# DROP TRIGGER

## Name

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 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_name`

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

`CASCADE`

  Automatically drop objects that depend on the trigger, and in turn all objects that depend on those objects (see Section 5.13).

`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

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