UNLISTEN SQL - Language Statements UNLISTEN Stop listening for notification 1998-10-19 UNLISTEN { notifyname | * } 1998-10-19 notifyname Name of previously registered notify condition. * All current listen registrations for this backend are cleared. 1998-10-19 UNLISTEN Acknowledgement that statement has executed. 1998-10-19 UNLISTEN is used to remove an existing NOTIFY registration. UNLISTEN cancels any existing registration of the current Postgres session as a listener on the notify condition notifyname. The special condition wildcard "*" cancels all listener registrations for the current session. contains a more extensive discussion of the use of LISTEN and NOTIFY. 1998-10-19 classname needs not to be a valid class name but can be any string valid as a name up to 32 characters long. The backend does not complain if you UNLISTEN something you were not listening for. Each backend will automatically execute UNLISTEN * when exiting. A restriction in some previous releases of Postgres that a classname which does not correspond to an actual table must be enclosed in double-quotes is no longer present. postgres=> LISTEN virtual; LISTEN postgres=> NOTIFY virtual; NOTIFY ASYNC NOTIFY of 'virtual' from backend pid '12317' received postgres=> UNLISTEN virtual; UNLISTEN postgres=> NOTIFY virtual; NOTIFY -- notice no NOTIFY event is received postgres=> 1998-10-19 There is no UNLISTEN in SQL92.