Hmmm ... that should also be standard SPARQL 1 and 1.1 http://www.w3.org/TR/rdf-sparql-query/#func-bound http://www.w3.org/TR/sparql11-query/#func-bound
Once I learned this pattern from that reference's bound example (although it's not so straight forward like the new "filter not exists"). Am 11.03.2013, 14:39 Uhr, schrieb Kingsley Idehen <[email protected]>: > On 3/11/13 9:20 AM, Benjamin Großmann wrote: >> Meanwhile your query works using this clunky statement: >> >> optional {?S dbpo:numberOfUndergraduateStudents ?ANY} >> filter (!bound(?ANY)) >> >> Benjamin > > Yes, but Tim's effort is bound to standard SPARQL and I want to keep it > that way :-) > > We are fixing this regression. > > Note, that you don't have this problem on: > http://live.dbpedia.org/sparql , which runs an older Virtuoso release. > > Kingsley >> >> Am 09.03.2013, 21:25 Uhr, schrieb Kingsley Idehen >> <[email protected]>: >> >>> On 3/9/13 2:28 PM, Tim Finin wrote: >>>> http://dbpedia.org/sparql gives me a SP031 error for a query that >>>> seems stems from my use of FILTER NOT EXISTS. But this query worked a >>>> when I last ran it about 38 hours ago. Below is the error message I >>>> get, which also shows the query. Has the server software changed? >>>> -- Tim Finin, Computer Science & Electrical Eng., U. of Maryland, >>>> Baltimore County, 1000 Hilltop Circle, Baltimore MD 21250. >>>> http://umbc.edu/~finin/ [email protected] skype:timFinin o:4104553522 >>>> fax:4104553969 mob:4104993522 -- Virtuoso 37000 Error SP031: SPARQL >>>> compiler: Internal error: sparp_find_origin_of_external_var(): >>>> external source equiv is found, external source var is not SPARQL >>>> query: define sql:big-data-const 0 #output-format:text/html define >>>> sql:signal-void-variables 1 define input:default-graph-uri >>>> <http://dbpedia.org> PREFIX dbpr: <http://dbpedia.org/resource/> >>>> PREFIX dbpo: <http://dbpedia.org/ontology/> select distinct ?S ?NG >>>> where { ?S a dbpo:University. {?S dbpo:country dbpr:United_States} >>>> UNION {?S dbpprop:country dbpr:United_States} ?S >>>> dbpo:numberOfPostgraduateStudents ?NG . FILTER NOT EXISTS {?S >>>> dbpo:numberOfUndergraduateStudents ?ANY} } >>> >>> Tim, >>> >>> Well spotted, there's regression in the new Virtuoso binary behind the >>> SPARQL endpoint. >>> >>> We'll get it fixed pronto! >> >> > ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
