DBLINK_GET_NOTIFY(3) PostgreSQL 16.4 DBLINK_GET_NOTIFY(3)
PostgreSQL 16.4 Documentation PostgreSQL 16.4 Documentation
2024
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
connname
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)
- 1 - Formatted: December 21, 2024
