unlisten(7) - phpMan

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 notifica-
       tion  name. The special wildcard * cancels all listener registrations for the current ses-
       sion.

       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 can 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                   2011-09-22                                 UNLISTEN()

Generated by $Id: phpMan.php,v 4.49 2006/02/26 13:18:18 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2012-05-26 04:23 @38.107.179.237 Crawled by CCBot/1.0 (+http://www.commoncrawl.org/bot.html)