<!--
doc/src/sgml/ref/alter_statistics.sgml
PostgreSQL documentation
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<refentry id="sql-alterstatistics">
 <indexterm zone="sql-alterstatistics">
  <primary>ALTER STATISTICS</primary>
 </indexterm>

 <refmeta>
  <refentrytitle>ALTER STATISTICS</refentrytitle>
  <manvolnum>7</manvolnum>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>ALTER STATISTICS</refname>
  <refpurpose>
   change the definition of an extended statistics object
  </refpurpose>
 </refnamediv>

 <refsynopsisdiv>
<synopsis>
ALTER STATISTICS <replaceable class="parameter">name</replaceable> OWNER TO { <replaceable class="parameter">new_owner</replaceable> | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
ALTER STATISTICS <replaceable class="parameter">name</replaceable> RENAME TO <replaceable class="parameter">new_name</replaceable>
ALTER STATISTICS <replaceable class="parameter">name</replaceable> SET SCHEMA <replaceable class="parameter">new_schema</replaceable>
ALTER STATISTICS <replaceable class="parameter">name</replaceable> SET STATISTICS { <replaceable class="parameter">new_target</replaceable> | DEFAULT }
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>ALTER STATISTICS</command> changes the parameters of an existing
   extended statistics object.  Any parameters not specifically set in the
   <command>ALTER STATISTICS</command> command retain their prior settings.
  </para>

  <para>
   You must own the statistics object to use <command>ALTER STATISTICS</command>.
   To change a statistics object's schema, you must also
   have <literal>CREATE</literal> privilege on the new schema.
   To alter the owner, you must be able to <literal>SET ROLE</literal> to the
   new owning role, and that role must have <literal>CREATE</literal>
   privilege on the statistics object's schema.
   (These restrictions enforce that altering
   the owner doesn't do anything you couldn't do by dropping and recreating
   the statistics object.  However, a superuser can alter ownership of any
   statistics object anyway.)
  </para>
 </refsect1>

 <refsect1>
  <title>Parameters</title>

   <para>
    <variablelist>
     <varlistentry>