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<!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>Chapter 74. Transaction Processing</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="storage-hot.html" title="73.7. Heap-Only Tuples (HOT)" /><link rel="next" href="transaction-id.html" title="74.1. Transactions and Identifiers" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">Chapter 74. Transaction Processing</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="storage-hot.html" title="73.7. Heap-Only Tuples (HOT)">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="internals.html" title="Part VII. Internals">Up</a></td><th width="60%" align="center">Part VII. Internals</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="transaction-id.html" title="74.1. Transactions and Identifiers">Next</a></td></tr></table><hr /></div><div class="chapter" id="TRANSACTIONS"><div class="titlepage"><div><div><h2 class="title">Chapter 74. Transaction Processing</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="sect1"><a href="transaction-id.html">74.1. Transactions and Identifiers</a></span></dt><dt><span class="sect1"><a href="xact-locking.html">74.2. Transactions and Locking</a></span></dt><dt><span class="sect1"><a href="subxacts.html">74.3. Subtransactions</a></span></dt><dt><span class="sect1"><a href="two-phase.html">74.4. Two-Phase Transactions</a></span></dt></dl></div><p>
This chapter provides an overview of the internals of
<span class="productname">PostgreSQL</span>'s transaction management system.
The word transaction is often abbreviated as <em class="firstterm">xact</em>.
</p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="storage-hot.html" title="73.7. Heap-Only Tuples (HOT)">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="internals.html" title="Part VII. Internals">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="transaction-id.html" title="74.1. Transactions and Identifiers">Next</a></td></tr><tr><td width="40%" align="left" valign="top">73.7. Heap-Only Tuples (<acronym class="acronym">HOT</acronym>) </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 16.2 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 74.1. Transactions and Identifiers</td></tr></table></div></body></html>
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