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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>71.3. Backup Manifest WAL Range Object</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 V1.79.1" /><link rel="prev" href="backup-manifest-files.html" title="71.2. Backup Manifest File Object" /><link rel="next" href="appendixes.html" title="パート VIII. 付録" /><meta name="viewport" content="width=device-width,initial-scale=1.0" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="4" align="center"><a accesskey="h" href="index.html">PostgreSQL 13.1文書</a></th></tr><tr><td width="10%" align="left"></td><td width="10%" align="left"></td><td width="60%" align="center"><a href="backup-manifest-format.html" title="第71章 Backup Manifest Format">第71章 Backup Manifest Format</a></td><td width="20%" align="right"></td></tr><tr><td width="10%" align="left"><a accesskey="p" href="backup-manifest-files.html" title="71.2. Backup Manifest File Object">前へ</a> </td><td width="10%" align="left"><a accesskey="u" href="backup-manifest-format.html" title="第71章 Backup Manifest Format">上へ</a></td><td width="60%" align="center">71.3. Backup Manifest WAL Range Object</td><td width="20%" align="right"> <a accesskey="n" href="appendixes.html" title="パート VIII. 付録">次へ</a></td></tr></table><hr /></div><div class="sect1" id="BACKUP-MANIFEST-WAL-RANGES"><div class="titlepage"><div><div><h2 class="title" style="clear: both">71.3. Backup Manifest WAL Range Object</h2></div></div></div><p>
   The object which describes a WAL range always has three keys:
  </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">Timeline</code></span></dt><dd><p>
      The timeline for this range of WAL records, as an integer.
     </p></dd><dt><span class="term"><code class="literal">Start-LSN</code></span></dt><dd><p>
      The LSN at which replay must begin on the indicated timeline in order to
      make use of this backup.  The LSN is stored in the format normally used
      by <span class="productname">PostgreSQL</span>; that is, it is a string
      consisting of two strings of hexadecimal characters, each with a length
      of between 1 and 8, separated by a slash.
     </p></dd><dt><span class="term"><code class="literal">End-LSN</code></span></dt><dd><p>
      The earliest LSN at which replay on the indicated timeline may end when
      making use of this backup. This is stored in the same format as
      <code class="literal">Start-LSN</code>.
     </p></dd></dl></div><p>
   Ordinarily, there will be only a single WAL range. However, if a backup is
   taken from a standby which switches timelines during the backup due to an
   upstream promotion, it is possible for multiple ranges to be present, each
   with a different timeline. There will never be multiple WAL ranges present
   for the same timeline.
  </p></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="backup-manifest-files.html" title="71.2. Backup Manifest File Object">前へ</a> </td><td width="20%" align="center"><a accesskey="u" href="backup-manifest-format.html" title="第71章 Backup Manifest Format">上へ</a></td><td width="40%" align="right"> <a accesskey="n" href="appendixes.html" title="パート VIII. 付録">次へ</a></td></tr><tr><td width="40%" align="left" valign="top">71.2. Backup Manifest File Object </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 13.1文書">ホーム</a></td><td width="40%" align="right" valign="top"> パート VIII. 付録</td></tr></table></div></body></html>