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[Bug 25446] New: [F+O 3.1] ordered collation keys

From: <bugzilla@jessica.w3.org>
Date: Thu, 24 Apr 2014 22:25:34 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-25446-523@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=25446

            Bug ID: 25446
           Summary: [F+O 3.1] ordered collation keys
           Product: XPath / XQuery / XSLT
           Version: Working drafts
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Functions and Operators 3.1
          Assignee: mike@saxonica.com
          Reporter: mike@saxonica.com
        QA Contact: public-qt-comments@w3.org

The new collation-key() function states:

This specification does not mandate that collation keys should retain ordering.
This is partly because the primary use case is for maps, where only equality
comparisons are required, and partly to allow the use of binary data types
(which are currently unordered types) for the result. The specification may be
revised in a future release to specify that ordering is preserved.

However, we have introduced support for ordering in hexBinary and base64Binary,
and UCA defines an algorithm for generating binary collation keys that respect
ordering. So we should review this decision.

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Received on Thursday, 24 April 2014 22:25:35 UTC

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