1 files changed, 48 insertions, 0 deletions
diff --git a/doc/src/sgml/html/sql-unlisten.html b/doc/src/sgml/html/sql-unlisten.html
new file mode 100644
index 0000000..ae1499d
--- /dev/null
+++ b/doc/src/sgml/html/sql-unlisten.html
@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>UNLISTEN</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-truncate.html" title="TRUNCATE" /><link rel="next" href="sql-update.html" title="UPDATE" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">UNLISTEN</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-truncate.html" title="TRUNCATE">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-update.html" title="UPDATE">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-UNLISTEN"><div class="titlepage"></div><a id="id-1.9.3.182.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">UNLISTEN</span></h2><p>UNLISTEN — stop listening for a notification</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
+UNLISTEN { <em class="replaceable"><code>channel</code></em> | * }
+</pre></div><div class="refsect1" id="id-1.9.3.182.5"><h2>Description</h2><p>
+   <code class="command">UNLISTEN</code> is used to remove an existing
+   registration for <code class="command">NOTIFY</code> events.
+   <code class="command">UNLISTEN</code> cancels any existing registration of
+   the current <span class="productname">PostgreSQL</span> session as a
+   listener on the notification channel named <em class="replaceable"><code>channel</code></em>.  The special wildcard
+   <code class="literal">*</code> cancels all listener registrations for the
+   current session.
+  </p><p>
+   <a class="xref" href="sql-notify.html" title="NOTIFY"><span class="refentrytitle">NOTIFY</span></a>
+   contains a more extensive
+   discussion of the use of <code class="command">LISTEN</code> and
+   <code class="command">NOTIFY</code>.
+  </p></div><div class="refsect1" id="id-1.9.3.182.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>channel</code></em></span></dt><dd><p>
+      Name of a notification channel (any identifier).
+     </p></dd><dt><span class="term"><code class="literal">*</code></span></dt><dd><p>
+      All current listen registrations for this session are cleared.
+     </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.182.7"><h2>Notes</h2><p>
+   You can unlisten something you were not listening for; no warning or error
+   will appear.
+  </p><p>
+   At the end of each session, <code class="command">UNLISTEN *</code> is
+   automatically executed.
+  </p><p>
+   A transaction that has executed <code class="command">UNLISTEN</code> cannot be
+   prepared for two-phase commit.
+  </p></div><div class="refsect1" id="id-1.9.3.182.8"><h2>Examples</h2><p>
+   To make a registration:
+
+</p><pre class="programlisting">
+LISTEN virtual;
+NOTIFY virtual;
+Asynchronous notification "virtual" received from server process with PID 8448.
+</pre><p>
+  </p><p>
+   Once <code class="command">UNLISTEN</code> has been executed, further <code class="command">NOTIFY</code>
+   messages will be ignored:
+
+</p><pre class="programlisting">
+UNLISTEN virtual;
+NOTIFY virtual;
+-- no NOTIFY event is received
+</pre></div><div class="refsect1" id="id-1.9.3.182.9"><h2>Compatibility</h2><p>
+   There is no <code class="command">UNLISTEN</code> command in the SQL standard.
+  </p></div><div class="refsect1" id="id-1.9.3.182.10"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-listen.html" title="LISTEN"><span class="refentrytitle">LISTEN</span></a>, <a class="xref" href="sql-notify.html" title="NOTIFY"><span class="refentrytitle">NOTIFY</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-truncate.html" title="TRUNCATE">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-update.html" title="UPDATE">Next</a></td></tr><tr><td width="40%" align="left" valign="top">TRUNCATE </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> UPDATE</td></tr></table></div></body></html>
+\ No newline at end of file