dblink_get_notify
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
and
NOTIFY
.
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)