="title">Chapter 52. Overview of PostgreSQL Internals</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="sect1"><a href="query-path.html">52.1. The Path of a Query</a></span></dt><dt><span class="sect1"><a href="connect-estab.html">52.2. How Connections Are Established</a></span></dt><dt><span class="sect1"><a href="parser-stage.html">52.3. The Parser Stage</a></span></dt><dd><dl><dt><span class="sect2"><a href="parser-stage.html#PARSER-STAGE-P