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Subject: RE: [relax-ng] Identity constraints

If I recall our earlier discussions on identity constraints correctly (in
2001, pre-1.0), I believe the TC was in agreement an keeping validation and
checking of constraints separate. I think having a separate module for
identity constraints naturally suggests separate processing or checking.


> -----Original Message-----
> From: MURATA Makoto (FAMILY Given) [mailto:EB2M-MRT@asahi-net.or.jp]
> Sent: Monday, October 07, 2002 6:35 AM
> To: RELAX NG Mailing List
> Subject: Re: [relax-ng] Identity constraints
> On Mon, 07 Oct 2002 17:46:59 +0700
> James Clark <jjc@jclark.com> wrote:
> >   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.
> Probably, the hardest part is agreement on requirements.  I am not sure
> if we are knowledgeable enough to avoid pre-mature standardization.
> Recent research are concerned about incremental checking of
> identity constraints
> and consistency-checking between schemas and identity
> constraints.  These topics
> look interesting and valuable.  I also think that separation of
> validation and
> identity-constraint-checking is highly important.  Are we going
> to cover these
> topics (and other topics I'm ignorant of)?
> If we do not standardize anything and let people rely on XQuery
> or innovate by
> themselves, will we have real problems?  (I'm just asking.)
> --
> MURATA Makoto (FAMILY Given) <EB2M-MRT@asahi-net.or.jp>
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