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diff --git a/doc/src/sgml/html/planner-optimizer.html b/doc/src/sgml/html/planner-optimizer.html index da8e3a1..b1980c1 100644 --- a/doc/src/sgml/html/planner-optimizer.html +++ b/doc/src/sgml/html/planner-optimizer.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>52.5. Planner/Optimizer</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="rule-system.html" title="52.4. The PostgreSQL Rule System" /><link rel="next" href="executor.html" title="52.6. Executor" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">52.5. Planner/Optimizer</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="rule-system.html" title="52.4. The PostgreSQL Rule System">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="overview.html" title="Chapter 52. Overview of PostgreSQL Internals">Up</a></td><th width="60%" align="center">Chapter 52. Overview of PostgreSQL Internals</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="executor.html" title="52.6. Executor">Next</a></td></tr></table><hr /></div><div class="sect1" id="PLANNER-OPTIMIZER"><div class="titlepage"><div><div><h2 class="title" style="clear: both">52.5. Planner/Optimizer</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="planner-optimizer.html#id-1.10.3.8.5">52.5.1. Generating Possible Plans</a></span></dt></dl></div><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>52.5. Planner/Optimizer</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="rule-system.html" title="52.4. The PostgreSQL Rule System" /><link rel="next" href="executor.html" title="52.6. Executor" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">52.5. Planner/Optimizer</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="rule-system.html" title="52.4. The PostgreSQL Rule System">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="overview.html" title="Chapter 52. Overview of PostgreSQL Internals">Up</a></td><th width="60%" align="center">Chapter 52. Overview of PostgreSQL Internals</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="executor.html" title="52.6. Executor">Next</a></td></tr></table><hr /></div><div class="sect1" id="PLANNER-OPTIMIZER"><div class="titlepage"><div><div><h2 class="title" style="clear: both">52.5. Planner/Optimizer</h2></div></div></div><div class="toc"><dl class="toc"><dt><span class="sect2"><a href="planner-optimizer.html#id-1.10.3.8.5">52.5.1. Generating Possible Plans</a></span></dt></dl></div><p> The task of the <em class="firstterm">planner/optimizer</em> is to create an optimal execution plan. A given SQL query (and hence, a query tree) can be actually executed in a wide variety of @@ -108,4 +108,4 @@ <code class="literal">WHERE</code> clause and computation of required output expressions to the most appropriate nodes of the plan tree. - </p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="rule-system.html" title="52.4. The PostgreSQL Rule System">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="overview.html" title="Chapter 52. Overview of PostgreSQL Internals">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="executor.html" title="52.6. Executor">Next</a></td></tr><tr><td width="40%" align="left" valign="top">52.4. The <span class="productname">PostgreSQL</span> Rule System </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"> 52.6. Executor</td></tr></table></div></body></html>
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