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<?xml version="1.0" encoding="ISO-8859-1"?>
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- Copyright (C) 1998-2018 OpenLink Software
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-->
<refentry id="fn_xpf_extension_remove">
<refmeta>
<refentrytitle>xpf_extension_remove</refentrytitle>
<refmiscinfo>xml</refmiscinfo>
</refmeta>
<refnamediv>
<refname>xpf_extension_remove</refname>
<refpurpose>discards an XPath extension function</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_xpf_extension_remove">
<funcprototype id="fproto_xpf_extension_remove">
<funcdef>void <function>xpf_extension_remove</function></funcdef>
<paramdef>in <parameter>fname</parameter> varchar</paramdef>
<paramdef>in <parameter>procedure_name</parameter> varchar</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_xpf_extension_remove"><title>Description</title>
<para>Removes a user-defined XPath function.</para>
</refsect1>
<refsect1 id="params_xpf_extension_remove"><title>Parameters</title>
<refsect2><title>fname</title> <para>The expanded QName of the
extension function to be removed</para></refsect2>
<refsect2><title>procedure_name</title> <para>The fully qualified
name of the PL procedure which acts as the extension
function.</para></refsect2>
</refsect1>
<refsect1 id="ret_xpf_extension_remove"><title>Return Types</title>
<para>None (void).</para></refsect1>
<refsect1 id="errors_xpf_extension_remove"><title>Errors</title>
<table><title>Errors signalled by</title>
<tgroup cols="4">
<thead><row><entry>SQLState</entry><entry>Error Code</entry><entry>Error Text</entry><entry>Description</entry></row></thead>
<tbody>
<row>
<entry><errorcode>42001</errorcode></entry>
<entry><errorcode>XPE03</errorcode></entry>
<entry><errorname><![CDATA[The <built-in XPATH|XQUERY> function "<func name>" cannot be removed]]></errorname></entry>
<entry>if XPATH or XQUERY function to be un-registered is a core function.</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1 id="seealso_xpf_extension_remove"><title>See Also</title>
<para><link linkend="fn_xpf_extension"><function>xpf_extension()</function></link></para>
</refsect1>
</refentry>
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