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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 OPERATOR FAMILY</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-createopclass.html" title="CREATE OPERATOR CLASS" /><link rel="next" href="sql-createpolicy.html" title="CREATE POLICY" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">CREATE OPERATOR FAMILY</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-createopclass.html" title="CREATE OPERATOR CLASS">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 15.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-createpolicy.html" title="CREATE POLICY">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-CREATEOPFAMILY"><div class="titlepage"></div><a id="id-1.9.3.74.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">CREATE OPERATOR FAMILY</span></h2><p>CREATE OPERATOR FAMILY — define a new operator family</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
+CREATE OPERATOR FAMILY <em class="replaceable"><code>name</code></em> USING <em class="replaceable"><code>index_method</code></em>
+</pre></div><div class="refsect1" id="id-1.9.3.74.5"><h2>Description</h2><p>
+   <code class="command">CREATE OPERATOR FAMILY</code> creates a new operator family.
+   An operator family defines a collection of related operator classes,
+   and perhaps some additional operators and support functions that are
+   compatible with these operator classes but not essential for the
+   functioning of any individual index.  (Operators and functions that
+   are essential to indexes should be grouped within the relevant operator
+   class, rather than being <span class="quote">“<span class="quote">loose</span>”</span> in the operator family.
+   Typically, single-data-type operators are bound to operator classes,
+   while cross-data-type operators can be loose in an operator family
+   containing operator classes for both data types.)
+  </p><p>
+   The new operator family is initially empty.  It should be populated
+   by issuing subsequent <code class="command">CREATE OPERATOR CLASS</code> commands
+   to add contained operator classes, and optionally
+   <code class="command">ALTER OPERATOR FAMILY</code> commands to add <span class="quote">“<span class="quote">loose</span>”</span>
+   operators and their corresponding support functions.
+  </p><p>
+   If a schema name is given then the operator family is created in the
+   specified schema.  Otherwise it is created in the current schema.
+   Two operator families in the same schema can have the same name only if they
+   are for different index methods.
+  </p><p>
+   The user who defines an operator family becomes its owner.  Presently,
+   the creating user must be a superuser.  (This restriction is made because
+   an erroneous operator family definition could confuse or even crash the
+   server.)
+  </p><p>
+   Refer to <a class="xref" href="xindex.html" title="38.16. Interfacing Extensions to Indexes">Section 38.16</a> for further information.
+  </p></div><div class="refsect1" id="id-1.9.3.74.6"><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 operator family to be created.  The name can be
+      schema-qualified.
+     </p></dd><dt><span class="term"><em class="replaceable"><code>index_method</code></em></span></dt><dd><p>
+      The name of the index method this operator family is for.
+     </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.74.7"><h2>Compatibility</h2><p>
+   <code class="command">CREATE OPERATOR FAMILY</code> is a
+   <span class="productname">PostgreSQL</span> extension.  There is no
+   <code class="command">CREATE OPERATOR FAMILY</code> statement in the SQL
+   standard.
+  </p></div><div class="refsect1" id="id-1.9.3.74.8"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-alteropfamily.html" title="ALTER OPERATOR FAMILY"><span class="refentrytitle">ALTER OPERATOR FAMILY</span></a>, <a class="xref" href="sql-dropopfamily.html" title="DROP OPERATOR FAMILY"><span class="refentrytitle">DROP OPERATOR FAMILY</span></a>, <a class="xref" href="sql-createopclass.html" title="CREATE OPERATOR CLASS"><span class="refentrytitle">CREATE OPERATOR CLASS</span></a>, <a class="xref" href="sql-alteropclass.html" title="ALTER OPERATOR CLASS"><span class="refentrytitle">ALTER OPERATOR CLASS</span></a>, <a class="xref" href="sql-dropopclass.html" title="DROP OPERATOR CLASS"><span class="refentrytitle">DROP OPERATOR CLASS</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-createopclass.html" title="CREATE OPERATOR CLASS">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-createpolicy.html" title="CREATE POLICY">Next</a></td></tr><tr><td width="40%" align="left" valign="top">CREATE OPERATOR CLASS </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> CREATE POLICY</td></tr></table></div></body></html>
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