- From: <bugzilla@jessica.w3.org>
- Date: Tue, 31 Jan 2012 17:41:20 +0000
- To: www-xml-schema-comments@w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=15722
Michael Kay <mike@saxonica.com> changed:
What |Removed |Added
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CC| |mike@saxonica.com
--- Comment #1 from Michael Kay <mike@saxonica.com> 2012-01-31 17:41:19 UTC ---
An identity constraint defines a constraint on a subtree, namely that two Xs
within the subtree can't have the same value for f(X). The declaration of the
constraint is associated with the root of the subtree that it constrains. I
can't therefore see how it would make much sense to specify the constraint for
an attribute, whose subtree is trivial.
I've always thought defining the constraint on the type rather than on the
element would make sense, but there's no real benefit in making the change at
this stage of the game.
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Received on Tuesday, 31 January 2012 17:41:23 UTC