Re: what should the result of query be (and look like)

From: Peter F. Patel-Schneider (pfps@research.bell-labs.com)
Date: 10/24/01 

I vote for none of the ``above''.

The answer should be equivalent to a two-member set of pairs.

One such answer could be 

	{ < <patsCar> , <blue> > ,
          < _:b , <red> > }

Another possible answer could be 

	?x = <patsCar>, ?y = { <blue> }
	?x = <_:b>, ?y = { <red> }

This second version could allow for a more-natural representation of some
answers, at a certain price.

I am torn between these two.  Formally, I like the simplicity of the
former.  Pragmatically, I want the answer to reflect any ``nesting'' in the
query and thus like the second.  (Yes, there is little possibility of
nesting in RDF.)

peter

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