<!--
doc/src/sgml/ref/alter_extension.sgml
PostgreSQL documentation
-->

<refentry id="SQL-ALTEREXTENSION">
 <refmeta>
  <refentrytitle>ALTER EXTENSION</refentrytitle>
  <manvolnum>7</manvolnum>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>ALTER EXTENSION</refname>
  <refpurpose>
   change the definition of an extension
  </refpurpose>
 </refnamediv>

 <indexterm zone="sql-alterextension">
  <primary>ALTER EXTENSION</primary>
 </indexterm>

 <refsynopsisdiv>
<synopsis>
ALTER EXTENSION <replaceable class="PARAMETER">name</replaceable> SET SCHEMA <replaceable class="PARAMETER">new_schema</replaceable>
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>ALTER EXTENSION</command> changes the definition of an existing extension.
   Currently there is only one subform:

   <variablelist>
   <varlistentry>
    <term><literal>SET SCHEMA</literal></term>
    <listitem>
     <para>
      This form moves the extension's objects into another schema. The
      extension has to be <firstterm>relocatable</> for this command to
      succeed. See <xref linkend="extend-extensions"> for details.
     </para>
    </listitem>
   </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1>
  <title>Parameters</title>

   <para>
    <variablelist>
     <varlistentry>
      <term><replaceable class="PARAMETER">name</replaceable></term>
      <listitem>
       <para>
        The name of an installed extension.
       </para>
      </listitem>
     </varlistentry>

     <varlistentry>
      <term><replaceable class="PARAMETER">new_schema</replaceable></term>
      <listitem>
       <para>
        The new schema for the extension.
       </para>
      </listitem>
     </varlistentry>
    </variablelist>
  </para>
 </refsect1>

 <refsect1>
  <title>Examples</title>

  <para>
   To change the schema of the extension <literal>hstore</literal>
   to <literal>utils</literal>:
<programlisting>
ALTER EXTENSION hstore SET SCHEMA utils;
</programlisting>
  </para>
 </refsect1>

 <refsect1 id="SQL-ALTEREXTENSION-see-also">
  <title>See Also</title>

  <simplelist type="inline">
   <member><xref linkend="sql-createextension"></member>
   <member><xref linkend="sql-dropextension"></member>
  </simplelist>
 </refsect1>
</refentry>
