2011-09-13 17:44:24 +00:00
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<title>identical duplicate data items</title>
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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_put.html" title="DB->put" />
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<div class="libver">
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2012-11-14 21:35:20 +00:00
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<p>Library Version 11.2.5.3</p>
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2011-09-13 17:44:24 +00:00
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<tr>
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<th colspan="3" align="center">identical duplicate data items</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_put.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_1_btstat.html">Next</a></td>
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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_dup"></a>identical duplicate data items</h2>
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</div>
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</div>
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</div>
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<p>In previous releases of Berkeley DB, it was not an error to store identical
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duplicate data items, or, for those that just like the way it sounds,
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duplicate duplicates. However, there were implementation bugs where
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storing duplicate duplicates could cause database corruption.</p>
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<p>In this release, applications may store identical duplicate data items
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as long as the data items are unsorted. It is an error to attempt to
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store identical duplicate data items when duplicates are being stored
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in a sorted order. This restriction is expected to be lifted in a future
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release. See <a href="../programmer_reference/general_am_conf.html#am_conf_dup" class="olink">Duplicate data items</a> for more information.</p>
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<td width="40%" align="left"><a accesskey="p" href="upgrade_3_1_put.html">Prev</a> </td>
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<a accesskey="u" href="upgrade_3_1_toc.html">Up</a>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_3_1_btstat.html">Next</a></td>
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<td width="40%" align="left" valign="top">DB->put </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"> DB->stat</td>
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