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   Re: [xml-dev] status of "collections" in XPath / XQuery

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First of all, I think you'd need to define what a collection is before we go on from there. From what I've seen from the native XML database space, no one is exactly sure if a collection is simply a directory containing many XML documents or more akin to a relational database table.
Since XQuery and XPath are based on formalisms, the concept of what constitutes MUST be well defined before it is included in the specs. So what do you mean by "a collection"?
I will not have a daughter. She would be as beautiful as she was evil, but
one look at the hero's rugged countenance and she'd betray her own father.
----- Original Message -----
Sent: Tuesday, January 29, 2002 6:04 AM
Subject: [xml-dev] status of "collections" in XPath / XQuery

What is the status of defining "collections" in XPath or XQuery?  The use cases specified by W3C seem to be more
at the "collection" level than specific documents.  It seems that each book in a bibliographies document is better
modeled as a document in a collection called "bibliographies".
Is there thought going on regarding constraints on collections (when they are defined)?  I may want to have all
invoice numbers in a collection be unique.


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