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75 lines
3.8 KiB
HTML
75 lines
3.8 KiB
HTML
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Upgrade Requirements</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" />
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<link rel="up" href="upgrade_3_1_toc.html" title="Chapter 13. Upgrading Berkeley DB 3.0 applications to Berkeley DB 3.1" />
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<link rel="prev" href="upgrade_3_1_logalloc.html" title="log file pre-allocation" />
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<link rel="next" href="upgrade_3_0_toc.html" title="Chapter 14. Upgrading Berkeley DB 2.X applications to Berkeley DB 3.0" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 11.2.5.2</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Upgrade Requirements</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="upgrade_3_1_logalloc.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 13. Upgrading Berkeley DB 3.0 applications to Berkeley DB 3.1</th>
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<td width="20%" align="right"> <a accesskey="n" href="upgrade_3_0_toc.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="upgrade_3_1_disk"></a>Upgrade Requirements</h2>
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</div>
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</div>
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</div>
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<p>Log file formats and the Btree, Queue, Recno and Hash Access Method
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database formats changed in the Berkeley DB 3.1 release. (The on-disk
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Btree/Recno format changed from version 7 to version 8. The on-disk
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Hash format changed from version 6 to version 7. The on-disk Queue
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format changed from version 1 to version 2.) Until the underlying
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databases are upgraded, the <a href="../api_reference/C/dbopen.html" class="olink">DB->open()</a> method will return a
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<code class="literal">DB_OLD_VERSION</code> error.</p>
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<p>An additional flag, <a href="../api_reference/C/dbset_flags.html#dbset_flags_DB_DUPSORT" class="olink">DB_DUPSORT</a>, has been added to the
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<a href="../api_reference/C/dbupgrade.html" class="olink">DB->upgrade()</a> method for this upgrade. Please review the
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<a href="../api_reference/C/dbupgrade.html" class="olink">DB->upgrade()</a> documentation for further information.</p>
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<p>For further information on upgrading Berkeley DB installations, see
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<a class="xref" href="upgrade_process.html" title="Chapter 2. Upgrading from previous versions of Berkeley DB">
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Upgrading from previous versions of Berkeley DB
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</a>.</p>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="upgrade_3_1_logalloc.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="upgrade_3_1_toc.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_3_0_toc.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">log file pre-allocation </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> Chapter 14. Upgrading Berkeley DB 2.X applications to Berkeley DB 3.0</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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