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[Bug 20828] New: Typed Data Feature

From: <bugzilla@jessica.w3.org>
Date: Wed, 30 Jan 2013 20:48:27 +0000
To: public-qt-comments@w3.org
Message-ID: <bug-20828-523@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=20828

            Bug ID: 20828
           Summary: Typed Data Feature
    Classification: Unclassified
           Product: XPath / XQuery / XSLT
           Version: Candidate Recommendation
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XQuery 3.0
          Assignee: jonathan.robie@gmail.com
          Reporter: jonathan.robie@gmail.com
        QA Contact: public-qt-comments@w3.org

In yesterday's telcon, we discussed the need for a Typed Data Feature, which
can be disabled to allow a processor to be completely untyped. 

Here is a proposal for the feature:

<proposal>

5.2.3 Typed Data Feature

[Definition: The Typed Data Feature permits a data model instance to contain
element nodes types other than xs:untyped and attributes node types other than
xs:untypedAtomic.]

If an XQuery implementation does not provide the Typed Data Feature, it MUST
guarantee that the XDM has the type xs:untyped for every element node and 
xs:untypedAtomic for every attribute node, including nodes created by the
query.

</proposal>

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