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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)