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Named Graph Property Path Question

From: Matthew Perry <matthew.perry@oracle.com>
Date: Thu, 21 Jul 2011 15:17:19 -0400
Message-ID: <4E287B3F.2050700@oracle.com>
To: W3C SPARQL Working Group <public-rdf-dawg@w3.org>
Hi,

I have come across a property path query that I'm not sure about:

SELECT ?g ?o
WHERE { GRAPH ?g { <urn:s> <urn:p1>{0} ?o } }

Do we get:
1) ?o=<urn:s>, ?g=<urn:graph_i> for all graphs in the dataset
2) ?o=<urn:s>, ?g=<urn:graph_i> for all graphs in the dataset that contain <urn:s> as a subject
3) something else

I don't believe we hit the 0-length case with an unbound graph in our tests.

Thanks,
Matt
Received on Thursday, 21 July 2011 19:17:56 GMT

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