[Bug 20862] New: xs:error and subtype relationship

https://www.w3.org/Bugs/Public/show_bug.cgi?id=20862

            Bug ID: 20862
           Summary: xs:error and subtype relationship
    Classification: Unclassified
           Product: XPath / XQuery / XSLT
           Version: Candidate Recommendation
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XQuery 3.0
          Assignee: jonathan.robie@gmail.com
          Reporter: ghislain.fourny@28msec.com
        QA Contact: public-qt-comments@w3.org

In paragraph 2.5.6.1 ( http://www.w3.org/TR/xquery-30/#id-seqtype-subtype ) it
is said that subtype(Ai*, Bi?) always returns false.

If we do support the predefined XML Schema 1.1 simple type xs:error which is a
union type without member types, should there not be an exception in the case
where Ai is a pure union type with no member types? The same applies for Ai+
and Bi.

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Received on Monday, 4 February 2013 14:10:44 UTC