DROP TRIGGER [ IF EXISTS ] name ON table [ CASCADE | RESTRICT ]
Description
DROP TRIGGER will remove 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.
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