Query: unlisten
OS: redhat
Section: 7
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
UNLISTEN(7) SQL Commands UNLISTEN(7)NAMEUNLISTEN - stop listening for a notificationSYNOPSISUNLISTEN { notifyname | * } INPUTS notifyname Name of previously registered notify condition. * All current listen registrations for this backend are cleared. OUTPUTS UNLISTEN Acknowledgment that statement has executed.DESCRIPTIONUNLISTEN is used to remove an existing NOTIFY registration. UNLISTEN cancels any existing registration of the current PostgreSQL session as a listener on the notify condition notifyname. The special condition 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. NOTES notifyname need not be a valid class name but can be any string valid as a name up to 64 characters long. The backend does not complain if you unlisten something you were not listening for. Each backend will automatically execute UNLISTEN * when exiting.USAGETo subscribe to an existing registration: LISTEN virtual; LISTEN NOTIFY virtual; NOTIFY Asynchronous NOTIFY 'virtual' from backend with pid '8448' received Once UNLISTEN has been executed, further NOTIFY commands will be ignored: UNLISTEN virtual; UNLISTEN NOTIFY virtual; NOTIFY -- notice no NOTIFY event is receivedCOMPATIBILITYSQL92 There is no UNLISTEN in SQL92. SQL - Language Statements 2002-11-22 UNLISTEN(7)
Related Man Pages |
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listen(7) - redhat |
notify(7) - redhat |
unlisten(7) - redhat |
aa-notify(8) - debian |
listen(7) - suse |
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