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Subject: [relax-ng] Identity constraints
Another area where I got some feedback was with respect to identity constraints. There seemed to be some agreement that identity constraints didn't belong in XML Schema. The database constituency didn't really see the need for anything -- you can easily just use XQuery to express any constraint you want. However, outside the database constituency, there did seem to be a feeling that something lighter-weight than full XQuery was needed. I would summarize the desired level of functionality as a bit more than what's in XML Schema, but with a strong requirement that it must be streamable. James
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