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UNLISTEN(7)             PostgreSQL 9.5.0 Documentation             UNLISTEN(7)


UNLISTEN - stop listening for a notification


UNLISTEN { channel | * }


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.


channel Name of a notification channel (any identifier). * All current listen registrations for this session are cleared.


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.


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


There is no UNLISTEN command in the SQL standard.


LISTEN(7), NOTIFY(7) PostgreSQL 9.5.0 2016 UNLISTEN(7)

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