codekingpro/portable-devtools

1<?xml version="1.0" encoding="UTF-8" standalone="no"?>2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ALTER TEXT SEARCH DICTIONARY</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="sql-altertsconfig.html" title="ALTER TEXT SEARCH CONFIGURATION" /><link rel="next" href="sql-altertsparser.html" title="ALTER TEXT SEARCH PARSER" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">ALTER TEXT SEARCH DICTIONARY</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-altertsconfig.html" title="ALTER TEXT SEARCH CONFIGURATION">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-altertsparser.html" title="ALTER TEXT SEARCH PARSER">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-ALTERTSDICTIONARY"><div class="titlepage"></div><a id="id-1.9.3.38.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">ALTER TEXT SEARCH DICTIONARY</span></h2><p>ALTER TEXT SEARCH DICTIONARY — change the definition of a text search dictionary</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">3ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> (4    <em class="replaceable"><code>option</code></em> [ = <em class="replaceable"><code>value</code></em> ] [, ... ]5)6ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> RENAME TO <em class="replaceable"><code>new_name</code></em>7ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> OWNER TO { <em class="replaceable"><code>new_owner</code></em> | CURRENT_ROLE | CURRENT_USER | SESSION_USER }8ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> SET SCHEMA <em class="replaceable"><code>new_schema</code></em>9</pre></div><div class="refsect1" id="id-1.9.3.38.5"><h2>Description</h2><p>10   <code class="command">ALTER TEXT SEARCH DICTIONARY</code> changes the definition of11   a text search dictionary.  You can change the dictionary's12   template-specific options, or change the dictionary's name or owner.13  </p><p>14   You must be the owner of the dictionary to use15   <code class="command">ALTER TEXT SEARCH DICTIONARY</code>.16  </p></div><div class="refsect1" id="id-1.9.3.38.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>name</code></em></span></dt><dd><p>17      The name (optionally schema-qualified) of an existing text search18      dictionary.19     </p></dd><dt><span class="term"><em class="replaceable"><code>option</code></em></span></dt><dd><p>20      The name of a template-specific option to be set for this dictionary.21     </p></dd><dt><span class="term"><em class="replaceable"><code>value</code></em></span></dt><dd><p>22      The new value to use for a template-specific option.23      If the equal sign and value are omitted, then any previous24      setting for the option is removed from the dictionary,25      allowing the default to be used.26     </p></dd><dt><span class="term"><em class="replaceable"><code>new_name</code></em></span></dt><dd><p>27      The new name of the text search dictionary.28     </p></dd><dt><span class="term"><em class="replaceable"><code>new_owner</code></em></span></dt><dd><p>29      The new owner of the text search dictionary.30     </p></dd><dt><span class="term"><em class="replaceable"><code>new_schema</code></em></span></dt><dd><p>31      The new schema for the text search dictionary.32     </p></dd></dl></div><p>33   Template-specific options can appear in any order.34  </p></div><div class="refsect1" id="id-1.9.3.38.7"><h2>Examples</h2><p>35   The following example command changes the stopword list36   for a Snowball-based dictionary.  Other parameters remain unchanged.37  </p><pre class="programlisting">38ALTER TEXT SEARCH DICTIONARY my_dict ( StopWords = newrussian );39</pre><p>40   The following example command changes the language option to <code class="literal">dutch</code>,41   and removes the stopword option entirely.42  </p><pre class="programlisting">43ALTER TEXT SEARCH DICTIONARY my_dict ( language = dutch, StopWords );44</pre><p>45   The following example command <span class="quote">“<span class="quote">updates</span>”</span> the dictionary's46   definition without actually changing anything.47 48</p><pre class="programlisting">49ALTER TEXT SEARCH DICTIONARY my_dict ( dummy );50</pre><p>51 52   (The reason this works is that the option removal code doesn't complain53   if there is no such option.)  This trick is useful when changing54   configuration files for the dictionary: the <code class="command">ALTER</code> will55   force existing database sessions to re-read the configuration files,56   which otherwise they would never do if they had read them earlier.57  </p></div><div class="refsect1" id="id-1.9.3.38.8"><h2>Compatibility</h2><p>58   There is no <code class="command">ALTER TEXT SEARCH DICTIONARY</code> statement in59   the SQL standard.60  </p></div><div class="refsect1" id="id-1.9.3.38.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-createtsdictionary.html" title="CREATE TEXT SEARCH DICTIONARY"><span class="refentrytitle">CREATE TEXT SEARCH DICTIONARY</span></a>, <a class="xref" href="sql-droptsdictionary.html" title="DROP TEXT SEARCH DICTIONARY"><span class="refentrytitle">DROP TEXT SEARCH DICTIONARY</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="sql-altertsconfig.html" title="ALTER TEXT SEARCH CONFIGURATION">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-altertsparser.html" title="ALTER TEXT SEARCH PARSER">Next</a></td></tr><tr><td width="40%" align="left" valign="top">ALTER TEXT SEARCH CONFIGURATION </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.3 Documentation">Home</a></td><td width="40%" align="right" valign="top"> ALTER TEXT SEARCH PARSER</td></tr></table></div></body></html>