table of contents
DBLINK_GET_NOTIFY(3) | PostgreSQL 16.6 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¶
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)
2024 | PostgreSQL 16.6 |