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

<refentry id="sql-altertablespace">
 <indexterm zone="sql-altertablespace">
  <primary>ALTER TABLESPACE</primary>
 </indexterm>

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

 <refnamediv>
  <refname>ALTER TABLESPACE</refname>
  <refpurpose>change the definition of a tablespace</refpurpose>
 </refnamediv>

 <refsynopsisdiv>
<synopsis>
ALTER TABLESPACE <replaceable>name</replaceable> RENAME TO <replaceable>new_name</replaceable>
ALTER TABLESPACE <replaceable>name</replaceable> OWNER TO { <replaceable>new_owner</replaceable> | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
ALTER TABLESPACE <replaceable>name</replaceable> SET ( <replaceable class="parameter">tablespace_option</replaceable> = <replaceable class="parameter">value</replaceable> [, ... ] )
ALTER TABLESPACE <replaceable>name</replaceable> RESET ( <replaceable class="parameter">tablespace_option</replaceable> [, ... ] )
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>ALTER TABLESPACE</command> can be used to change the definition of
   a tablespace.
  </para>

  <para>
   You must own the tablespace to change the definition of a tablespace.
   To alter the owner, you must also be able to <literal>SET ROLE</literal>
   to the new owning role.
   (Note that superusers have these privileges automatically.)
  </para>

 </refsect1>

 <refsect1>
  <title>Parameters</title>

  <variablelist>
   <varlistentry>
    <term><replaceable class="parameter">name</replaceable></term>
    <listitem>
     <para>
      The name of an existing tablespace.
     </para>
    </listitem>
   </varlistentry>

   <varlistentry>
    <term><replaceable class="parameter">new_name</replaceable></term>
    <listitem>
     <para>
      The new name of the tablespace.  The new name cannot
      begin with <literal>pg_</literal>, as such names
      are reserved for system tablespaces.
     </para>
    </listitem>
   </varlistentry>