- From: Chimezie Ogbuji <ogbujic@ccf.org>
- Date: Mon, 13 Aug 2007 13:59:52 -0400
- To: "W3C Data Access Working Group" <public-rdf-dawg@w3.org>
Per my ACTION, I've added 6 new tests to cover *some* common, missing algebraic forms. 4 were added to data-r2/optional and 2 were added to data-r2/algebra. Unfortunately (or fortunately, if you consider uncovering untested bugs a good thing), RDFLib does *not* pass any of these tests. I've gone over them several times to verify the expected results. At the very least the data, queries, and results are well-formed (no parsing compliants). 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 } } http://www.w3.org/2001/sw/DataAccess/tests/data-r2/algebra/manifest#join-combo-2 Algebra form: Join(Graph(varOrIRI,{..}),Union(..,..)) Comment: Tests combination of Join operator with Graph on LHS and Union on RHS PREFIX : <http://example/> SELECT ?x ?y ?z { GRAPH ?g { ?x ?p 1 } { ?x :p ?y } UNION { ?p a ?z } } http://www.w3.org/2001/sw/DataAccess/tests/data-r2/optional/manifest#dawg-optional-complex-1 Comment: Complex optional: LeftJoin(LeftJoin(BGP(..),{..}),Join(BGP(..),Union(..,..))) PREFIX foaf: <http://xmlns.com/foaf/0.1/> SELECT ?person ?nick ?page ?img ?name ?firstN { ?person foaf:nick ?nick OPTIONAL { ?person foaf:isPrimaryTopicOf ?page } OPTIONAL { ?person foaf:name ?name { ?person foaf:depiction ?img } UNION { ?person foaf:firstName ?firstN } } FILTER ( bound(?page) || bound(?img) || bound(?firstN) ) } http://www.w3.org/2001/sw/DataAccess/tests/data-r2/optional/manifest#dawg-optional-complex-2 Comment: Complex optional: LeftJoin(Join(BGP(..),Graph(var,{..})),Union(..,..)) PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX ex: <http://example.org/things#> SELECT ?id ?ssn WHERE { ?person a foaf:Person; foaf:name ?name . GRAPH ?x { [] foaf:name ?name; foaf:nick ?nick } OPTIONAL { { ?person ex:empId ?id } UNION { ?person ex:ssn ?ssn } } } http://www.w3.org/2001/sw/DataAccess/tests/data-r2/optional/manifest#dawg-optional-complex-3 Comment: Complex optional: LeftJoin(Join(BGP(..),Graph(var,{..})),LeftJoin(BGP(..),{..})) PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX ex: <http://example.org/things#> SELECT ?name ?nick ?plan ?dept WHERE { ?person a foaf:Person; foaf:name ?name . GRAPH ?x { [] foaf:name ?name; foaf:nick ?nick } OPTIONAL { ?person ex:healthplan ?plan OPTIONAL { ?person ex:department ?dept } } } http://www.w3.org/2001/sw/DataAccess/tests/data-r2/optional/manifest#dawg-optional-complex-4 Comment: Complex optional: LeftJoin(Join(BGP(..),Union(..,..)),Join(BGP(..),Graph(varOrIRI,{..}))) PREFIX foaf: <http://xmlns.com/foaf/0.1/> PREFIX ex: <http://example.org/things#> SELECT ?name ?plan ?dept ?img WHERE { ?person foaf:name ?name { ?person ex:healthplan ?plan } UNION { ?person ex:department ?dept } OPTIONAL { ?person a foaf:Person GRAPH ?g { [] foaf:name ?name; foaf:depiction ?img } } } -- 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 Monday, 13 August 2007 18:00:57 UTC