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   Re: [xml-dev] FW: [ANN]: XQuery: A Guided Tour

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Dare Obasanjo wrote:

>However RELAX NG doesn't even do infoset augmentation which is required 
>for the XQuery type system to do anything interesting with it. 
I think all that is required by the XQuery type system is type 
annotations consistent
with the data model. A RELAX NG system could make type annotations; 
there would
be no derived types (or only one level), but you could write an XML 
Schema schema
like that too. (If the RELAX NG schema were unambiguous, it could be 
used for
static checking too.)

What is "interesting"?  Surely not derivation of complex types, because 
it is so
crippled as to be useless AFAIKS.

Rick Jelliffe


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