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>dblink_get_notify</H1
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NAME="AEN147633"
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><H2
>Name</H2
>dblink_get_notify&nbsp;--&nbsp;retrieve async notifications on a connection</DIV
><DIV
CLASS="REFSYNOPSISDIV"
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NAME="AEN147636"
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><H2
>Synopsis</H2
><PRE
CLASS="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)</PRE
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><H2
>Description</H2
><P
>    <CODE
CLASS="FUNCTION"
>dblink_get_notify</CODE
> retrieves notifications on either
    the unnamed connection, or on a named connection if specified.
    To receive notifications via dblink, <CODE
CLASS="FUNCTION"
>LISTEN</CODE
> must
    first be issued, using <CODE
CLASS="FUNCTION"
>dblink_exec</CODE
>.
    For details see <A
HREF="sql-listen.html"
>LISTEN</A
> and <A
HREF="sql-notify.html"
>NOTIFY</A
>.
   </P
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><H2
>Arguments</H2
><P
></P
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><DL
><DT
><TT
CLASS="PARAMETER"
>connname</TT
></DT
><DD
><P
>       The name of a named connection to get notifications on.
      </P
></DD
></DL
></DIV
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><A
NAME="AEN147654"
></A
><H2
>Return Value</H2
><P
>Returns <TT
CLASS="TYPE"
>setof (notify_name text, be_pid int, extra text)</TT
>, or an empty set if none.</P
></DIV
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><A
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></A
><H2
>Examples</H2
><PRE
CLASS="SCREEN"
>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)</PRE
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