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@@ -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>14.3. Controlling the Planner with Explicit JOIN Clauses</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="planner-stats.html" title="14.2. Statistics Used by the Planner" /><link rel="next" href="populate.html" title="14.4. Populating a Database" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">14.3. Controlling the Planner with Explicit <code class="literal">JOIN</code> Clauses</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="planner-stats.html" title="14.2. Statistics Used by the Planner">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="performance-tips.html" title="Chapter 14. Performance Tips">Up</a></td><th width="60%" align="center">Chapter 14. Performance Tips</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="populate.html" title="14.4. Populating a Database">Next</a></td></tr></table><hr /></div><div class="sect1" id="EXPLICIT-JOINS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">14.3. Controlling the Planner with Explicit <code class="literal">JOIN</code> Clauses</h2></div></div></div><a id="id-1.5.13.6.2" 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>14.3. Controlling the Planner with Explicit JOIN Clauses</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="planner-stats.html" title="14.2. Statistics Used by the Planner" /><link rel="next" href="populate.html" title="14.4. Populating a Database" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">14.3. Controlling the Planner with Explicit <code class="literal">JOIN</code> Clauses</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="planner-stats.html" title="14.2. Statistics Used by the Planner">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="performance-tips.html" title="Chapter 14. Performance Tips">Up</a></td><th width="60%" align="center">Chapter 14. Performance Tips</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="populate.html" title="14.4. Populating a Database">Next</a></td></tr></table><hr /></div><div class="sect1" id="EXPLICIT-JOINS"><div class="titlepage"><div><div><h2 class="title" style="clear: both">14.3. Controlling the Planner with Explicit <code class="literal">JOIN</code> Clauses</h2></div></div></div><a id="id-1.5.13.6.2" class="indexterm"></a><p>
It is possible
to control the query planner to some extent by using the explicit <code class="literal">JOIN</code>
syntax. To see why this matters, we first need some background.
@@ -141,4 +141,4 @@ SELECT * FROM x, y, a, b, c WHERE something AND somethingelse;
to control join order with explicit joins). But you might set them
differently if you are trying to fine-tune the trade-off between planning
time and run time.
- </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="planner-stats.html" title="14.2. Statistics Used by the Planner">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="performance-tips.html" title="Chapter 14. Performance Tips">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="populate.html" title="14.4. Populating a Database">Next</a></td></tr><tr><td width="40%" align="left" valign="top">14.2. Statistics Used by the Planner </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"> 14.4. Populating a Database</td></tr></table></div></body></html> \ No newline at end of file
+ </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="planner-stats.html" title="14.2. Statistics Used by the Planner">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="performance-tips.html" title="Chapter 14. Performance Tips">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="populate.html" title="14.4. Populating a Database">Next</a></td></tr><tr><td width="40%" align="left" valign="top">14.2. Statistics Used by the Planner </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.6 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 14.4. Populating a Database</td></tr></table></div></body></html> \ No newline at end of file