[Virtuoso-users] Optional clause location in SPAQRL

Hi everyone, Does the location of OPTIONAL clause matters in SPAQRL query? Here are the examples of non-intersecting results on dbpedia: 1. Without any OPTIONAL numNames = 2143 PREFIX dbprop: SELECT count(DISTINCT ?name) AS ?numNames WHERE { ?country rdf:type db

Re: [Virtuoso-users] "Stack Overflow in cost model" error

Hi Oliver, On 25-Jun-14 12:28 PM, Olivier Dalang wrote: Hi ! I'm encountering a very strange error. I have a query which works well with two different FILTER clauses, but when I use both FILTER at the same time (simply combining them with AND), I get the following error : SQL error: [u

[Virtuoso-users] "Stack Overflow in cost model" error

Hi ! I'm encountering a very strange error. I have a query which works well with two different FILTER clauses, but when I use both FILTER at the same time (simply combining them with AND), I get the following error : SQL error: [unixODBC][OpenLink][Virtuoso iODBC Driver][Virtuoso > Server]SQ200:

Re: [Virtuoso-users] Virtuoso: automatically generated graphs

Dear Kingsley, Thank you for your reply. We removed sponging as you advised. Regards, Tatiana 2014-06-19 13:47 GMT+02:00 Kingsley Idehen : > On 6/19/14 6:12 AM, Tatiana Tarasova wrote: > > > Going back to the sponger service. We didn't install rdf_mappers_vad, > but we enabled the sponging f