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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>CREATE TEXT SEARCH TEMPLATE</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-createtsparser.html" title="CREATE TEXT SEARCH PARSER" /><link rel="next" href="sql-createtransform.html" title="CREATE TRANSFORM" /></head><body><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">CREATE TEXT SEARCH TEMPLATE</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-createtsparser.html" title="CREATE TEXT SEARCH PARSER">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 11.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-createtransform.html" title="CREATE TRANSFORM">Next</a></td></tr></table><hr></hr></div><div class="refentry" id="SQL-CREATETSTEMPLATE"><div class="titlepage"></div><a id="id-1.9.3.91.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">CREATE TEXT SEARCH TEMPLATE</span></h2><p>CREATE TEXT SEARCH TEMPLATE — define a new text search template</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
CREATE TEXT SEARCH TEMPLATE <em class="replaceable"><code>name</code></em> (
[ INIT = <em class="replaceable"><code>init_function</code></em> , ]
LEXIZE = <em class="replaceable"><code>lexize_function</code></em>
)
</pre></div><div class="refsect1" id="id-1.9.3.91.5"><h2>Description</h2><p>
<code class="command">CREATE TEXT SEARCH TEMPLATE</code> creates a new text search
template. Text search templates define the functions that implement
text search dictionaries. A template is not useful by itself, but must
be instantiated as a dictionary to be used. The dictionary typically
specifies parameters to be given to the template functions.
</p><p>
If a schema name is given then the text search template is created in the
specified schema. Otherwise it is created in the current schema.
</p><p>
You must be a superuser to use <code class="command">CREATE TEXT SEARCH
TEMPLATE</code>. This restriction is made because an erroneous text
search template definition could confuse or even crash the server.
The reason for separating templates from dictionaries is that a template
encapsulates the <span class="quote">“<span class="quote">unsafe</span>”</span> aspects of defining a dictionary.
The parameters that can be set when defining a dictionary are safe for
unprivileged users to set, and so creating a dictionary need not be a
privileged operation.
</p><p>
Refer to <a class="xref" href="textsearch.html" title="Chapter 12. Full Text Search">Chapter 12</a> for further information.
</p></div><div class="refsect1" id="id-1.9.3.91.6"><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 of the text search template to be created. The name can be
schema-qualified.
</p></dd><dt><span class="term"><em class="replaceable"><code>init_function</code></em></span></dt><dd><p>
The name of the init function for the template.
</p></dd><dt><span class="term"><em class="replaceable"><code>lexize_function</code></em></span></dt><dd><p>
The name of the lexize function for the template.
</p></dd></dl></div><p>
The function names can be schema-qualified if necessary. Argument types
are not given, since the argument list for each type of function is
predetermined. The lexize function is required, but the init function
is optional.
</p><p>
The arguments can appear in any order, not only the one shown above.
</p></div><div class="refsect1" id="id-1.9.3.91.7"><h2>Compatibility</h2><p>
There is no
<code class="command">CREATE TEXT SEARCH TEMPLATE</code> statement in the SQL
standard.
</p></div><div class="refsect1" id="id-1.9.3.91.8"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-altertstemplate.html" title="ALTER TEXT SEARCH TEMPLATE"><span class="refentrytitle">ALTER TEXT SEARCH TEMPLATE</span></a>, <a class="xref" href="sql-droptstemplate.html" title="DROP TEXT SEARCH TEMPLATE"><span class="refentrytitle">DROP TEXT SEARCH TEMPLATE</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-createtsparser.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-createtransform.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">CREATE TEXT SEARCH PARSER </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> CREATE TRANSFORM</td></tr></table></div></body></html>
