From: Sandro Hawke (sandro@w3.org)
Date: 10/24/01
> I vote for none of the ``above''.
Sorry, but I think you're talking about some orthogonal issues about
the format of the query answer, and whether the answer to a query is
the matching triples themselves (which I was assuming for simplicity
in my example) or some binding information. I was trying to clarify a
different point about whether certain KB triples (ones with
existential variables in them) are even considered to be matchable.
(Richard seemed to be saying they should not be; I apologize if I've
misunderstood his position.)
> { < <patsCar> , <blue> > ,
> < _:b , <red> > }
> ?x = <patsCar>, ?y = { <blue> }
> ?x = <_:b>, ?y = { <red> }
Your use of _:b in the results shows you think it's okay to return
existential variables.
> peter
-- sandro
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