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<!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>ALTER RULE</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-alterroutine.html" title="ALTER ROUTINE" /><link rel="next" href="sql-alterschema.html" title="ALTER SCHEMA" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">ALTER RULE</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-alterroutine.html" title="ALTER ROUTINE">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-alterschema.html" title="ALTER SCHEMA">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-ALTERRULE"><div class="titlepage"></div><a id="id-1.9.3.28.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">ALTER RULE</span></h2><p>ALTER RULE — change the definition of a rule</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
ALTER RULE <em class="replaceable"><code>name</code></em> ON <em class="replaceable"><code>table_name</code></em> RENAME TO <em class="replaceable"><code>new_name</code></em>
</pre></div><div class="refsect1" id="id-1.9.3.28.5"><h2>Description</h2><p>
<code class="command">ALTER RULE</code> changes properties of an existing
rule. Currently, the only available action is to change the rule's name.
</p><p>
To use <code class="command">ALTER RULE</code>, you must own the table or view that
the rule applies to.
</p></div><div class="refsect1" id="id-1.9.3.28.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p>
The name of an existing rule to alter.
</p></dd><dt><span class="term"><em class="replaceable"><code>table_name</code></em></span></dt><dd><p>
The name (optionally schema-qualified) of the table or view that the
rule applies to.
</p></dd><dt><span class="term"><em class="replaceable"><code>new_name</code></em></span></dt><dd><p>
The new name for the rule.
</p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.28.7"><h2>Examples</h2><p>
To rename an existing rule:
</p><pre class="programlisting">
ALTER RULE notify_all ON emp RENAME TO notify_me;
</pre></div><div class="refsect1" id="id-1.9.3.28.8"><h2>Compatibility</h2><p>
<code class="command">ALTER RULE</code> is a
<span class="productname">PostgreSQL</span> language extension, as is the
entire query rewrite system.
</p></div><div class="refsect1" id="id-1.9.3.28.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createrule.html" title="CREATE RULE"><span class="refentrytitle">CREATE RULE</span></a>, <a class="xref" href="sql-droprule.html" title="DROP RULE"><span class="refentrytitle">DROP RULE</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-alterroutine.html" title="ALTER ROUTINE">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-alterschema.html" title="ALTER SCHEMA">Next</a></td></tr><tr><td width="40%" align="left" valign="top">ALTER ROUTINE </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"> ALTER SCHEMA</td></tr></table></div></body></html>
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