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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></div><div class="refsect1" id="id-1.11.7.19.17.5"><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 class="xref" href="sql-listen.html" title="LISTEN"><span class="refentrytitle">LISTEN</span></a> and <a class="xref" href="sql-notify.html" title="NOTIFY"><span class="refentrytitle">NOTIFY</span></a>.
</p></div><div class="refsect1" id="id-1.11.7.19.17.6"><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>connname</code></em></span></dt><dd><p>
The name of a named connection to get notifications on.
</p></dd></dl></div></div><div class="refsect1" id="id-1.11.7.19.17.7"><h2>Return Value</h2><p>Returns <code class="type">setof (notify_name text, be_pid int, extra text)</code>, or an empty set if none.</p></div><div class="refsect1" id="id-1.11.7.19.17.8"><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)
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