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   RE: [xml-dev] XPath 1.5? (was RE: [xml-dev] typing and markup)

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> I'll let you in one an Open Secret, Jonathan; XQuery
> is not going to be interoperable. The XQuery WG set
> out to create the SQL of the XML world and they have
> succeeded. Interoperability between RDBMSs breaks down
> beyond the simple cases with proprietary extensions
> holding sway while lip service is paid to standards.
> No one fully implements SQL92, SQL99 may as well be a
> myth for all RDBMS vendors care about.
> From conversations with XQuery implementers both
> within and outside MS, I am confident that this
> situation is about to be replicated with XQuery
> especially since a number of its requirements simply
> cannot be efficiently implemented over certain data
> repositories.

I share your concerns that Microsoft appear to be implementing XQuery using
an architecture that will make it extremely difficult for them to conform to
the specification.

So what's new?

Michael Kay
Software AG
home: Michael.H.Kay@ntlworld.com
work: Michael.Kay@softwareag.com


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