[SML] Whether to support Attribute or not?

[Pavel Velikhov]

Rick Jelliffe wrote:
> 
> 
> From: Pavel Velikhov <pvelikho at cs.ucsd.edu>
> 
> >If you don't know whether the object you are picking is an
> >attribute or an element, you will have to write a disjunction.
> 
> When don't you know whether an object you are picking is an
> attribute or an element?
> 
> Rick Jelliffe

When you are querying a collection that does not have a DTD for
example. You may know that homes have an id, but you don't know
whether the id is an attribute or a element. Another case is a 
relational->XML wrapper, it export relational attributes as
XML attributes, but might as well export them as elements.

Pavel Velikhov

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