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LEARN ABOUT CENTOS
dblink_get_notify
DBLINK_GET_NOTIFY(3) PostgreSQL 9.2.7 Documentation DBLINK_GET_NOTIFY(3)
NAME
dblink_get_notify - retrieve async notifications on a connection
SYNOPSIS
dblink_get_notify() returns setof (notify_name text, be_pid int, extra text)
dblink_get_notify(text connname) returns setof (notify_name text, be_pid int, extra text)
DESCRIPTION
dblink_get_notify retrieves notifications on either the unnamed connection, or on a named connection if specified. To receive notifications
via dblink, LISTEN must first be issued, using dblink_exec. For details see LISTEN(7) and NOTIFY(7).
ARGUMENTS
conname
The name of a named connection to get notifications on.
RETURN VALUE
Returns setof (notify_name text, be_pid int, extra text), or an empty set if none.
EXAMPLES
SELECT dblink_exec('LISTEN virtual');
dblink_exec
-------------
LISTEN
(1 row)
SELECT * FROM dblink_get_notify();
notify_name | be_pid | extra
-------------+--------+-------
(0 rows)
NOTIFY virtual;
NOTIFY
SELECT * FROM dblink_get_notify();
notify_name | be_pid | extra
-------------+--------+-------
virtual | 1229 |
(1 row)
PostgreSQL 9.2.7 2014-02-17 DBLINK_GET_NOTIFY(3)