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

<refentry id="sql-altertsconfig">
 <indexterm zone="sql-altertsconfig">
  <primary>ALTER TEXT SEARCH CONFIGURATION</primary>
 </indexterm>

 <refmeta>
  <refentrytitle>ALTER TEXT SEARCH CONFIGURATION</refentrytitle>
  <manvolnum>7</manvolnum>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>ALTER TEXT SEARCH CONFIGURATION</refname>
  <refpurpose>change the definition of a text search configuration</refpurpose>
 </refnamediv>

 <refsynopsisdiv>
<synopsis>
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable>
    ADD MAPPING FOR <replaceable class="parameter">token_type</replaceable> [, ... ] WITH <replaceable class="parameter">dictionary_name</replaceable> [, ... ]
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable>
    ALTER MAPPING FOR <replaceable class="parameter">token_type</replaceable> [, ... ] WITH <replaceable class="parameter">dictionary_name</replaceable> [, ... ]
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable>
    ALTER MAPPING REPLACE <replaceable class="parameter">old_dictionary</replaceable> WITH <replaceable class="parameter">new_dictionary</replaceable>
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable>
    ALTER MAPPING FOR <replaceable class="parameter">token_type</replaceable> [, ... ] REPLACE <replaceable class="parameter">old_dictionary</replaceable> WITH <replaceable class="parameter">new_dictionary</replaceable>
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable>
    DROP MAPPING [ IF EXISTS ] FOR <replaceable class="parameter">token_type</replaceable> [, ... ]
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable> RENAME TO <replaceable>new_name</replaceable>
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable> OWNER TO { <replaceable>new_owner</replaceable> | CURRENT_ROLE | CURRENT_USER | SESSION_USER }
ALTER TEXT SEARCH CONFIGURATION <replaceable>name</replaceable> SET SCHEMA <replaceable>new_schema</replaceable>
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>ALTER TEXT SEARCH CONFIGURATION</command> changes the definition of
   a text search configuration.  You can modify
   its mappings from token types to dictionaries,
   or change the configuration's name or owner.
  </para>

  <para>
   You must be the owner of the configuration to use
   <command>ALTER TEXT SEARCH CONFIGURATION</command>.
  </para>
 </refsect1>

 <refsect1>
  <title>Parameters</title>

  <variablelist>
   <varlistentry>
    <term><replaceable class="parameter">name</replaceable></term>
    <listitem>
     <para>
      The name (optionally schema-qualified) of an existing text search
      configuration.
     </para>
    </listitem>
   </varlistentry>

   <varlistentry>
    <term><replaceable class="parameter">token_type</replaceable></term>
    <listitem>
     <para>
      The name of a token type that is emitted by the configuration's
      parser.
     </para>
    </listitem>
   </varlistentry>

   <varlistentry>
    <term><replaceable class="parameter">dictionary_name</replaceable></term>
    <listitem>
     <para>
      The name of a text search dictionary to