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dblink_get_notify -- retrieve async notifications on a connection


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)


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 and NOTIFY.



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.


SELECT dblink_exec('LISTEN virtual');
(1 row)

SELECT * FROM dblink_get_notify();
 notify_name | be_pid | extra
(0 rows)

NOTIFY virtual;

SELECT * FROM dblink_get_notify();
 notify_name | be_pid | extra
 virtual     |   1229 |
(1 row)

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