From: Olivier Corby <Olivier.Corby@sophia.inria.fr>

Date: Mon, 28 Jun 2010 17:21:43 +0200

Message-ID: <4C28BE07.7080909@sophia.inria.fr>

To: SPARQL Working Group <public-rdf-dawg@w3.org>

Date: Mon, 28 Jun 2010 17:21:43 +0200

Message-ID: <4C28BE07.7080909@sophia.inria.fr>

To: SPARQL Working Group <public-rdf-dawg@w3.org>

Here is a first set of sub query test case. Best regards Olivier ACTION 193: Subquery test case graph and select graph ?g is current graph data: g1 { a p b c p g1 } query: select * where { graph ?g { {select * where {?x ?p ?y}} } } result: ?g=g1; ?x=a; ?p=p; ?y=b ?g=g1; ?x=c; ?p=p; ?y=g1 ___________________________________ graph and select graph ?g is current graph inner variable ?g is bound to outer ?g data: g1 { a p b c p g1 } query: select * where { graph ?g { {select * where {?x ?p ?g}} } } result: ?g=g1; ?x=c; ?p=p ___________________________________________________ graph and select graph ?g is current graph inner variable ?g is not bound to outer ?g data: g1 { a p b c p g1 } query: select * where { graph ?g { {select ?x where {?x ?p ?g}} } } result: ?g=g1; ?x=a ?g=g1; ?x=c; _____________________________________________________ from graph and select the from does not apply to sub query because the graph pattern applies data: g1 { a p b c p g1 } query: select * from <g2> where { graph ?g { {select * where {?x ?p ?y}} } } results: ?g=g1; ?x=a; ?p=p; ?y=b ?g=g1; ?x=c; ?p=p; ?y=g1 ________________________________________________________ the from apply to sub query because the graph pattern applies data: g1 { a p b c p g1 } query: select * from named <g1> where { graph ?g { {select * where {?x ?p ?y}} } } results: ?g=g1; ?x=a; ?p=p; ?y=b ?g=g1; ?x=c; ?p=p; ?y=g1 ________________________________ the from apply to sub query data: g1 { a p b c p g1 } query: select * from <g1> where { {select * where {?x ?p ?y}} } results: ?x=a; ?p=p; ?y=b ?x=c; ?p=p; ?y=g1 ___________________________________ the from apply to sub query data: g1 { a p b c p g1 } query: select * from named <g1> where { {select * where {graph ?g {?x ?p ?y}}} } results: ?g=g1; ?x=a; ?p=p; ?y=b ?g=g1; ?x=c; ?p=p; ?y=g1 _____________________________________ aggregate in subquery data: a p 1 a p 2 b p 2 query: select * where { {select max(?y) as ?max where {?x p ?y} } ?x p ?max } result: ?x=a; ?max=2 ?x=b; ?max=2 _______________________________________ Nested subquery data: a p b a q c d p e query: select * where { {select * where { {select ?x where {?x q ?t}} }} ?x p ?y } results: ?x=a; ?y=b _____________________________________ subquery and exists data: a p b query: select * where { {select * where {?x p ?y}} filter(! exists {?x p ?y}) } result emptyReceived on Monday, 28 June 2010 15:22:23 UTC

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