Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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5.1.67, 5.3.12, 5.5.34, 10.0.6
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None
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None
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None
Description
The XML parser does not return errors when a closing tag does not
patch its opening tag.
The bug can be repeated with the ExtractValue() function:
mysql> select extractvalue('<a><b>xxx</c></a>','/a/b');
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+------------------------------------------+
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| extractvalue('<a><b>xxx</c></a>','/a/b') |
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+------------------------------------------+
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| xxx |
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+------------------------------------------+
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1 row in set (0.00 sec)
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Notice <b>...</c>.
The bug can also be repeated by using a malformed
the character set and collation definition file Index.xml.
<charsets>
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<charset name="utf8">
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<collation name="utf8_5624_5_bad" id="369" shift-after-method="expand">
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<rules>
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<reset>a-a4</reset><p>xxx04</a>
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<reset>a-aa5</reset><p>xxx05</a>
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<reset>a-aaa6</reset><p>xxx06</a>
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<reset>a-aaaa7</reset><p>xxx07</a>
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<reset>a-aaaaa8</reset><p>xxx08</a>
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<reset>a-aaaaaa9</reset><p>xxx09</a>
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<reset>a-aaaaaa10</reset><p>xxx10</a>
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</rules>
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</collation>
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<collation name="utf8_maxuserid_ci" id="2047" version="4.0.0">
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<rules>
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<reset>a</reset>
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<s>b</s>
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</rules>
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</collation>
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</charset>
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</charsets>
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Notice <p>..</a>. The file is read without any errors,
and the collation utf8_maxuserid_ci (which is following the
one with the bad definition) is available in the server.