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<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!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>63.5. Examples</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="[email protected]" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="spgist-implementation.html" title="63.4. Implementation" /><link rel="next" href="gin.html" title="Chapter 64. GIN Indexes" /></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">63.5. Examples</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="spgist-implementation.html" title="63.4. Implementation">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="spgist.html" title="Chapter 63. SP-GiST Indexes">Up</a></td><th width="60%" align="center">Chapter 63. SP-GiST Indexes</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 10.23 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="gin.html" title="Chapter 64. GIN Indexes">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="SPGIST-EXAMPLES"><div class="titlepage"><div><div><h2 class="title" style="clear: both">63.5. Examples</h2></div></div></div><p> The <span class="productname">PostgreSQL</span> source distribution includes several examples of index operator classes for <acronym class="acronym">SP-GiST</acronym>, as described in <a class="xref" href="spgist-builtin-opclasses.html#SPGIST-BUILTIN-OPCLASSES-TABLE" title="Table 63.1. Built-in SP-GiST Operator Classes">Table 63.1</a>. Look into <code class="filename">src/backend/access/spgist/</code> and <code class="filename">src/backend/utils/adt/</code> to see the code. </p></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="spgist-implementation.html" title="63.4. Implementation">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="spgist.html" title="Chapter 63. SP-GiST Indexes">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="gin.html" title="Chapter 64. GIN Indexes">Next</a></td></tr><tr><td width="40%" align="left" valign="top">63.4. Implementation </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 10.23 Documentation">Home</a></td><td width="40%" align="right" valign="top"> Chapter 64. GIN Indexes</td></tr></table></div></body></html>