- From: Chimezie Ogbuji <ogbujic@ccf.org>
- Date: Tue, 14 Aug 2007 10:17:50 -0400
- To: "W3C Data Access Working Group" <public-rdf-dawg@w3.org>
> > > > Thanks, Chimezie. > > > > I added a trailing period to algebra/join-combo-graph-2.ttl and to > > optional/complex-data-1.ttl and to optional/result-complex*.ttl to get the > > parser I'm using to be happy. I also removed a stray " from a namespace > > declaration in result-opt-complex-2.ttl . Well spotted, thanks. > >> The new tests are: > >> http://www.w3.org/2001/sw/DataAccess/tests/data-r2/algebra/manifest#join-combo-1 > >> Algebra form: Join(LeftJoin(BGP(..),{..}),Join(BGP(..),Union(..,..))) > >> Comment: Tests nested combination of Join with a BGP / OPT and a BGP / > >> UNION > >> PREFIX : <http://example/> > >> SELECT ?a ?y ?d ?z > >> { ?a :p ?c OPTIONAL { ?a :r ?d }. ?a ?p 1 { ?p a ?y } UNION { ?a > >> ?z ?p } } > > > > The result set here has two bindings for ?y. I'm guessing that one (the one > > bound to a literal) should be ?d Yes, it is supposed to be ?d. I.e.,: ?a -> http://example/x1 ?y -> http://www.w3.org/1999/02/22-rdf-syntax-ns#Property ?d -> 4^^xsd:integer I've made this change > but even then I don't think I'd agree with > > the test. Does the test assume RDF entailment (specifically knowing that if > > :a :b :c then :b a rdf:Property)? As written it doesn't, since the relevant statement (about rdf:Property) is explicitly asserted in the dataset: :p a rdf:Property Though I can see how the use of rdf:Property would seem to suggest RDF entailment... -- Chimezie Ogbuji Lead Systems Analyst Thoracic and Cardiovascular Surgery Cleveland Clinic Foundation 9500 Euclid Avenue/ W26 Cleveland, Ohio 44195 Office: (216)444-8593 ogbujic@ccf.org =================================== Cleveland Clinic is ranked one of the top hospitals in America by U.S. News & World Report (2007). Visit us online at http://www.clevelandclinic.org for a complete listing of our services, staff and locations. Confidentiality Note: This message is intended for use only by the individual or entity to which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. Thank you.
Received on Tuesday, 14 August 2007 14:18:20 UTC