DROP TRIGGER — remove a trigger
DROP TRIGGERnameONtable[ CASCADE | RESTRICT ]
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.
nameThe name of the trigger to remove.
tableThe name (optionally schema-qualified) of the table for which the trigger is defined.
CASCADEAutomatically drop objects that depend on the trigger.
RESTRICTRefuse 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;