DROP TRIGGER — remove a trigger
DROP TRIGGER [ IF EXISTS ]name
ONtable_name
[ CASCADE | RESTRICT ]
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.
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.
Destroy the trigger if_dist_exists
on the table films
:
DROP TRIGGER if_dist_exists ON films;
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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