Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Any news on this issue? The query on dbpedia still fails to give the correct answer Nicola On 08/12/2013 22:28, ghirardi nicola wrote: Sorry, I did not see your previous answer. This behaviour (wrong zero result) happens when these conditions are met ( I don't know how many are needed): 1- mul

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Hi Nicola, It would appear that it is the "OR" in a filter that is the problem as multiple graphs or filters work for me. I have reported the issue with the "OR"'s in filters to development to look into and will let you know when they have a fix ... Best Regards Hugh Williams Professional Se

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Sorry, I did not see your previous answer. This behaviour (wrong zero result) happens when these conditions are met ( I don't know how many are needed): 1- multiple from 2- multiple filters 3- "OR" inside a filter In some query removing the multiple from is enough but more often I saw the probl

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Hi Nicola, Thought I has seen this post before, you seem to have asked the same question two weeks ago and gave the same response, but the queries below do not have any from clauses, which is the subject of the original problem, thus in what way are they related ? Best Regards Hugh Williams P

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Hi A very similar query not working as expected is this one. In this case multiple form is not involved but It's a very similar pattern and I suppose is related. This query return 0: SELECT ?s WHERE { ?s rdf:type . ?s ?p2

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Hi Nicola, Are you able to provide a test case to recreate this behaviour we can setup locally ? Best Regards Hugh Williams Professional Services OpenLink Software, Inc. // http://www.openlinksw.com/ Weblog -- http://www.openlinksw.com/blogs/ LinkedIn -- http://www.linkedin.c

[Virtuoso-users] Wrong result with multiple FROM in SPARQL query

According to the SPARQL reference, multiple FROM clauses should mean a query over the merge of all specified datasets. http://www.w3.org/TR/sparql11-query/#unnamedGraph I used multiple graph in a query and a combination of filter and minus operators in "where" clause in this way: SELECT ?s

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Hi A very similar query not working as expected is this one. In this case multiple form is not involved but It's a very similar pattern and I suppose is related. This query return 0: SELECT ?s WHERE { ?s rdf:type . ?s ?p2

Re: [Virtuoso-users] Wrong result with multiple FROM in SPARQL query

Hi Nicola, Are you able to provide a test case for recreation ie minimum sample data to recreate the problem ? Best Regards Hugh Williams Professional Services OpenLink Software, Inc. // http://www.openlinksw.com/ Weblog -- http://www.openlinksw.com/blogs/ LinkedIn -- http://

[Virtuoso-users] Wrong result with multiple FROM in SPARQL query

According to the SPARQL reference, multiple FROM clauses should mean a query over the merge of all specified datasets. http://www.w3.org/TR/sparql11-query/#unnamedGraph I used multiple graph in a query and a combination of filter and minus operators in "where" clause in this way: SELECT ?s