unlisten

UNLISTEN()			 SQL Commands			   UNLISTEN()



NAME
       UNLISTEN - stop listening for a notification


SYNOPSIS
       UNLISTEN { name | * }


DESCRIPTION
       UNLISTEN is used to remove an existing registration for NOTIFY events.
       UNLISTEN cancels any existing registration of the  current  PostgreSQL
       session as a listener on the notification name. The special wildcard *
       cancels all listener registrations for the current session.

       NOTIFY [notify(7)] contains a more extensive discussion of the use  of
       LISTEN and NOTIFY.

PARAMETERS
       name   Name of a notification (any identifier).

       *      All  current listen registrations for this session are cleared.

NOTES
       You may unlisten something you were not listening for; no  warning  or
       error will appear.

       At the end of each session, UNLISTEN * is automatically executed.

EXAMPLES
       To make a registration:

       LISTEN virtual;
       NOTIFY virtual;
       Asynchronous notification "virtual" received from server process with PID 8448.


       Once  UNLISTEN  has  been  executed,  further  NOTIFY commands will be
       ignored:

       UNLISTEN virtual;
       NOTIFY virtual;
       -- no NOTIFY event is received


COMPATIBILITY
       There is no UNLISTEN command in the SQL standard.

SEE ALSO
       LISTEN [listen(7)], NOTIFY [notify(l)]



SQL - Language Statements	  2008-01-03			   UNLISTEN()