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(l)] 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(l)], NOTIFY [notify(l)]
SQL - Language Statements 2008-09-19 UNLISTEN()
postgresql 8.3.4 - Generated Sun Oct 5 09:39:57 CDT 2008