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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:19:15 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:19:15 +0000
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tree657d8194422a5daccecfd42d654b8a245ef7b4c8 /doc/src/sgml/html/sql-altertsdictionary.html
parentInitial commit. (diff)
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Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!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 V1.79.1" /><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 xmlns="http://www.w3.org/TR/xhtml1/transitional" 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 13.4 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></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">
+ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> (
+ <em class="replaceable"><code>option</code></em> [ = <em class="replaceable"><code>value</code></em> ] [, ... ]
+)
+ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> RENAME TO <em class="replaceable"><code>new_name</code></em>
+ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> OWNER TO { <em class="replaceable"><code>new_owner</code></em> | CURRENT_USER | SESSION_USER }
+ALTER TEXT SEARCH DICTIONARY <em class="replaceable"><code>name</code></em> SET SCHEMA <em class="replaceable"><code>new_schema</code></em>
+</pre></div><div class="refsect1" id="id-1.9.3.38.5"><h2>Description</h2><p>
+ <code class="command">ALTER TEXT SEARCH DICTIONARY</code> changes the definition of
+ a text search dictionary. You can change the dictionary's
+ template-specific options, or change the dictionary's name or owner.
+ </p><p>
+ You must be the owner of the dictionary to use
+ <code class="command">ALTER TEXT SEARCH DICTIONARY</code>.
+ </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>
+ The name (optionally schema-qualified) of an existing text search
+ dictionary.
+ </p></dd><dt><span class="term"><em class="replaceable"><code>option</code></em></span></dt><dd><p>
+ The name of a template-specific option to be set for this dictionary.
+ </p></dd><dt><span class="term"><em class="replaceable"><code>value</code></em></span></dt><dd><p>
+ The new value to use for a template-specific option.
+ If the equal sign and value are omitted, then any previous
+ setting for the option is removed from the dictionary,
+ allowing the default to be used.
+ </p></dd><dt><span class="term"><em class="replaceable"><code>new_name</code></em></span></dt><dd><p>
+ The new name of the text search dictionary.
+ </p></dd><dt><span class="term"><em class="replaceable"><code>new_owner</code></em></span></dt><dd><p>
+ The new owner of the text search dictionary.
+ </p></dd><dt><span class="term"><em class="replaceable"><code>new_schema</code></em></span></dt><dd><p>
+ The new schema for the text search dictionary.
+ </p></dd></dl></div><p>
+ Template-specific options can appear in any order.
+ </p></div><div class="refsect1" id="id-1.9.3.38.7"><h2>Examples</h2><p>
+ The following example command changes the stopword list
+ for a Snowball-based dictionary. Other parameters remain unchanged.
+ </p><pre class="programlisting">
+ALTER TEXT SEARCH DICTIONARY my_dict ( StopWords = newrussian );
+</pre><p>
+ The following example command changes the language option to <code class="literal">dutch</code>,
+ and removes the stopword option entirely.
+ </p><pre class="programlisting">
+ALTER TEXT SEARCH DICTIONARY my_dict ( language = dutch, StopWords );
+</pre><p>
+ The following example command <span class="quote">“<span class="quote">updates</span>”</span> the dictionary's
+ definition without actually changing anything.
+
+</p><pre class="programlisting">
+ALTER TEXT SEARCH DICTIONARY my_dict ( dummy );
+</pre><p>
+
+ (The reason this works is that the option removal code doesn't complain
+ if there is no such option.) This trick is useful when changing
+ configuration files for the dictionary: the <code class="command">ALTER</code> will
+ force existing database sessions to re-read the configuration files,
+ which otherwise they would never do if they had read them earlier.
+ </p></div><div class="refsect1" id="id-1.9.3.38.8"><h2>Compatibility</h2><p>
+ There is no <code class="command">ALTER TEXT SEARCH DICTIONARY</code> statement in
+ the SQL standard.
+ </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 xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></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 13.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> ALTER TEXT SEARCH PARSER</td></tr></table></div></body></html> \ No newline at end of file
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