- From: Olivier Corby <Olivier.Corby@sophia.inria.fr>
- Date: Tue, 10 Mar 2009 18:41:24 +0100
- To: public-rdf-dawg-comments@w3.org
Some suggestions for SPARQL extensions. Source: http://www.inria.fr/sophia/edelweiss/software/corese Olivier Construct with result of an expression construct { ?x ?p ?var } select fun(?y) as ?var where { ?x ?p ?y } Group by on result of an expression select fun(?x) as ?val count(?doc) as ?count where { ?x c:author ?doc } group by ?val Distinct on result of an expression select distinct fun(?x) as ?val where { ?x c:author ?doc } Several results returned by an expression select fun(?rho, ?theta) as (?x, ?y) where { ... } Get rid of transitivity ?x direct::rdfs:subClassOf ?y ?x direct::rdf:type ?y Construct with graph construct { graph ?g { ?y ?p ?x } } where { graph ?g { ?x ?p ?y } } Enumerate triples from a path using a (special) graph pattern on a path variable select ?a ?p ?b where { ?x $path ?y filter(match($path, 'rdfs:subClassOf *')) graph $path { ?a ?p ?b } }
Received on Tuesday, 10 March 2009 17:41:59 UTC