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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>DROP USER MAPPING</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-dropuser.html" title="DROP USER" /><link rel="next" href="sql-dropview.html" title="DROP VIEW" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">DROP USER MAPPING</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-dropuser.html" title="DROP USER">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 15.7 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-dropview.html" title="DROP VIEW">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-DROPUSERMAPPING"><div class="titlepage"></div><a id="id-1.9.3.144.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">DROP USER MAPPING</span></h2><p>DROP USER MAPPING — remove a user mapping for a foreign server</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
DROP USER MAPPING [ IF EXISTS ] FOR { <em class="replaceable"><code>user_name</code></em> | USER | CURRENT_ROLE | CURRENT_USER | PUBLIC } SERVER <em class="replaceable"><code>server_name</code></em>
</pre></div><div class="refsect1" id="id-1.9.3.144.5"><h2>Description</h2><p>
<code class="command">DROP USER MAPPING</code> removes an existing user
mapping from foreign server.
</p><p>
The owner of a foreign server can drop user mappings for that server
for any user. Also, a user can drop a user mapping for their own
user name if <code class="literal">USAGE</code> privilege on the server has been
granted to the user.
</p></div><div class="refsect1" id="id-1.9.3.144.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">IF EXISTS</code></span></dt><dd><p>
Do not throw an error if the user mapping does not exist. A
notice is issued in this case.
</p></dd><dt><span class="term"><em class="replaceable"><code>user_name</code></em></span></dt><dd><p>
User name of the mapping. <code class="literal">CURRENT_ROLE</code>, <code class="literal">CURRENT_USER</code>,
and <code class="literal">USER</code> match the name of the current
user. <code class="literal">PUBLIC</code> is used to match all present and
future user names in the system.
</p></dd><dt><span class="term"><em class="replaceable"><code>server_name</code></em></span></dt><dd><p>
Server name of the user mapping.
</p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.144.7"><h2>Examples</h2><p>
Drop a user mapping <code class="literal">bob</code>, server <code class="literal">foo</code> if it exists:
</p><pre class="programlisting">
DROP USER MAPPING IF EXISTS FOR bob SERVER foo;
</pre></div><div class="refsect1" id="id-1.9.3.144.8"><h2>Compatibility</h2><p>
<code class="command">DROP USER MAPPING</code> conforms to ISO/IEC 9075-9
(SQL/MED). The <code class="literal">IF EXISTS</code> clause is
a <span class="productname">PostgreSQL</span> extension.
</p></div><div class="refsect1" id="id-1.9.3.144.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createusermapping.html" title="CREATE USER MAPPING"><span class="refentrytitle">CREATE USER MAPPING</span></a>, <a class="xref" href="sql-alterusermapping.html" title="ALTER USER MAPPING"><span class="refentrytitle">ALTER USER MAPPING</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-dropuser.html" title="DROP USER">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-dropview.html" title="DROP VIEW">Next</a></td></tr><tr><td width="40%" align="left" valign="top">DROP USER </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.7 Documentation">Home</a></td><td width="40%" align="right" valign="top"> DROP VIEW</td></tr></table></div></body></html>
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