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exists

From: Olivier Corby <Olivier.Corby@sophia.inria.fr>
Date: Tue, 25 May 2010 13:44:13 +0200
Message-ID: <4BFBB80D.8000108@sophia.inria.fr>
To: SPARQL Working Group <public-rdf-dawg@w3.org>
What is the scope of variables in nested exists pattern?
For example, is the inner ?x the same as the outer ?x


select * where {
?x p ?y
filter(! exists {?y q ?z
                        filter(! exists {?x r ?z})
                      })

}


Olivier
Received on Tuesday, 25 May 2010 11:44:47 GMT

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