[Bug 29693] [XP31] Order of result of SimpleMapExpr

https://www.w3.org/Bugs/Public/show_bug.cgi?id=29693

Michael Kay <mike@saxonica.com> changed:

           What    |Removed                     |Added
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                 CC|                            |mike@saxonica.com

--- Comment #2 from Michael Kay <mike@saxonica.com> ---
(1) There's a problem here in the XPath version.

XQuery has:
If ordering mode is ordered, the returned sequence preserves the orderings
within and among the subsequences generated by the evaluations of E2; otherwise
the order of the returned sequence is implementation-dependent.

while XPath has:
The returned sequence preserves the orderings within and among the subsequences
generated by the evaluations of E2; otherwise the order of the returned
sequence is implementation-dependent.

The XPath version retains the "otherwise" clause, but it has lost the "if"
condition to which it relates. (XPath does not have an "ordering mode"). The
"otherwise" clause should therefore be dropped.

(2) The "within and among" formulation is possibly a bit informal, but I can't
immediately think of a good way of improving it.

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Received on Saturday, 11 June 2016 17:55:41 UTC