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diff --git a/doc/src/sgml/html/xfunc-optimization.html b/doc/src/sgml/html/xfunc-optimization.html index d468dee..246d9d1 100644 --- a/doc/src/sgml/html/xfunc-optimization.html +++ b/doc/src/sgml/html/xfunc-optimization.html @@ -1,5 +1,5 @@ <?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>38.11. Function Optimization Information</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="xfunc-c.html" title="38.10. C-Language Functions" /><link rel="next" href="xaggr.html" title="38.12. User-Defined Aggregates" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">38.11. Function Optimization Information</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="xfunc-c.html" title="38.10. C-Language Functions">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><th width="60%" align="center">Chapter 38. Extending <acronym class="acronym">SQL</acronym></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="xaggr.html" title="38.12. User-Defined Aggregates">Next</a></td></tr></table><hr /></div><div class="sect1" id="XFUNC-OPTIMIZATION"><div class="titlepage"><div><div><h2 class="title" style="clear: both">38.11. Function Optimization Information</h2></div></div></div><a id="id-1.8.3.14.2" class="indexterm"></a><p> +<!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>38.11. Function Optimization Information</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="xfunc-c.html" title="38.10. C-Language Functions" /><link rel="next" href="xaggr.html" title="38.12. User-Defined Aggregates" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">38.11. Function Optimization Information</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="xfunc-c.html" title="38.10. C-Language Functions">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><th width="60%" align="center">Chapter 38. Extending <acronym class="acronym">SQL</acronym></th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.6 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="xaggr.html" title="38.12. User-Defined Aggregates">Next</a></td></tr></table><hr /></div><div class="sect1" id="XFUNC-OPTIMIZATION"><div class="titlepage"><div><div><h2 class="title" style="clear: both">38.11. Function Optimization Information</h2></div></div></div><a id="id-1.8.3.14.2" class="indexterm"></a><p> By default, a function is just a <span class="quote">“<span class="quote">black box</span>”</span> that the database system knows very little about the behavior of. However, that means that queries using the function may be executed much less @@ -91,4 +91,4 @@ supportfn(internal) returns internal the index to see if it really passes the <code class="literal">WHERE</code> condition or not. To create such conditions, the support function must implement the <code class="literal">SupportRequestIndexCondition</code> request type. - </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="xfunc-c.html" title="38.10. C-Language Functions">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="extend.html" title="Chapter 38. Extending SQL">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="xaggr.html" title="38.12. User-Defined Aggregates">Next</a></td></tr><tr><td width="40%" align="left" valign="top">38.10. C-Language Functions </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"> 38.12. User-Defined Aggregates</td></tr></table></div></body></html>
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