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Bug 2818 - [ScriptReq] Extend the semantics of Ordered and Unordered Expressions
Summary: [ScriptReq] Extend the semantics of Ordered and Unordered Expressions
Status: CLOSED FIXED
Alias: None
Product: XPath / XQuery / XSLT
Classification: Unclassified
Component: Scripting Extensions 3.0 (show other bugs)
Version: Working drafts
Hardware: PC Windows 2000
: P2 normal
Target Milestone: ---
Assignee: Andrew Eisenberg
QA Contact: Mailing list for public feedback on specs from XSL and XML Query WGs
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Whiteboard:
Keywords:
Depends on:
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Reported: 2006-02-09 02:36 UTC by TAN Kuan Hui
Modified: 2007-06-29 08:31 UTC (History)
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Description TAN Kuan Hui 2006-02-09 02:36:19 UTC 
In the specification, "XQuery 1.0: An XML Query Language"
section 3.9 Ordered and Unordered Expressions, it specifies
the ordering mode (wrt document order) for enclosed
expressions. I would like to propose that the semantics
be extended to control the processing order of the
enclosed scope.

Besides updating of nodes, there can be other external
functions with side-effects (eg. reading from a file),
it will be desirable that the user can control the
processing order of the expressions, being ordered or 
unordered, so as to make the behaviour of updates
and calling of functions with side-effects predictable.
Comment 1 Jim Melton 2007-06-29 08:31:35 UTC 
This requirement has been accepted as part of the Scripting Extensions.