On 10/25/13 11:35 AM, Julien Plu wrote:
It's a bug if you don't have this issue when using Virtuoso 6. That said, I would expect the following to work:select distinct count(?birth) count(?death) where { ?entity <http://dbpedia.org/ontology/birthDate> ?birth . filter(datatype(?birth) = xsd:date). OPTIONAL {?entity <http://dbpedia.org/ontology/deathDate> ?death . filter(datatype(?death) = xsd:date). } } And this query return the good results : select distinct count(?birth) count(?death) where { ?entity <http://dbpedia.org/ontology/birthDate> ?birth .filter(datatype(?birth) = "http://www.w3.org/2001/XMLSchema#date <http://www.w3.org/2001/XMLSchema#string>").OPTIONAL {?entity <http://dbpedia.org/ontology/deathDate> ?death .filter(datatype(?death) = "http://www.w3.org/2001/XMLSchema#date <http://www.w3.org/2001/XMLSchema#string>").} } Have-I missed something or is-it really a bug from Virtuoso 7 ?
prefix xsd: <http://www.w3.org/2001/XMLSchema#> select distinct count(?birth) count(?death) where { ?entity <http://dbpedia.org/ontology/birthDate> ?birth . filter(datatype(?birth) = xsd:date). OPTIONAL {?entity <http://dbpedia.org/ontology/deathDate> ?death . filter(datatype(?death) = xsd:date). } } Proof: 1. http://kingsley.idehen.net/c/DBYF6E -- query against LOD Cloud Cache . -- Regards, Kingsley Idehen Founder & CEO OpenLink Software Company Web: http://www.openlinksw.com Personal Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca handle: @kidehen Google+ Profile: https://plus.google.com/112399767740508618350/about LinkedIn Profile: http://www.linkedin.com/in/kidehen
smime.p7s
Description: S/MIME Cryptographic Signature
------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135991&iu=/4140/ostg.clktrk
_______________________________________________ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
