Are you querying locally, or against the public endpoint? Have a look at the "Additional Strange Results" in this Stack Overflow question and answer:
http://stackoverflow.com/a/18793319/1281433 I had some weird results while querying DBpedia and trying to work with dates and datetimes. This may or may not be related. On Fri, Oct 25, 2013 at 11:35 AM, Julien Plu <julien....@redaction-developpez.com> wrote: > Hi, > > I think I found a bug with the datatype SPARQL function. This query as zero > results : > > 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";). > > OPTIONAL {?entity <http://dbpedia.org/ontology/deathDate> ?death . > > filter(datatype(?death) = > "http://www.w3.org/2001/XMLSchema#date";). > > } > > } > > > Have-I missed something or is-it really a bug from Virtuoso 7 ? > > > Thanks in advance. > > > Julien. > > > ------------------------------------------------------------------------------ > 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 > -- Joshua Taylor, http://www.cs.rpi.edu/~tayloj/ ------------------------------------------------------------------------------ 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
