centos man page for unlisten

Query: unlisten

OS: centos

Section: 7

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

UNLISTEN(7)						  PostgreSQL 9.2.7 Documentation					       UNLISTEN(7)

NAME
UNLISTEN - stop listening for a notification
SYNOPSIS
UNLISTEN { channel | * }
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 channel named channel. The special wildcard * cancels all listener registrations for the current session. NOTIFY(7) contains a more extensive discussion of the use of LISTEN and NOTIFY.
PARAMETERS
channel Name of a notification channel (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. A transaction that has executed UNLISTEN cannot be prepared for two-phase commit.
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 messages 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(7), NOTIFY(7) PostgreSQL 9.2.7 2014-02-17 UNLISTEN(7)
Related Man Pages
commit_prepared(7) - centos
prepare_transaction(7) - centos
unlisten(7) - centos
dblink_get_notify(3) - centos
pg_get_notify(3) - php
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