Hello Ivan Mikhailov, At this time, the performance issue is not a problem for us. In the near future we will work on that.
Thanks for the clarifications. Abraços, Renan Oliveira ----------------------------------------------- Busca & Semântica - Globo.com (21) 2483-6727 Y! glb_renan 2011/1/12 Ivan Mikhailov <[email protected]> > Hello Renan, > > The inference works without any relation to the number of graphs used as > data sources. OTOH querying on some list of graphs is slower than > querying on single graph, that is true for all queries regardless using > or not using the inference. The loss of speed may be more visible with > inference simply because the query contains "hidden" subqueries that > also become slower. > > If you have an example of a query that runs differenly depending on > numbers of graphs that contain same data, please let me know, it might > be a bug then. > > Best Regards, > > Ivan Mikhailov > OpenLink Software > http://virtuoso.openlinksw.com > > > On Mon, 2011-01-10 at 17:37 -0200, Renan Moreira de Oliveira wrote: > > Hi Aldo and Virtuoso Users > > How are you? > > > > I want to use an inference rule which has the two graphs in its range, > > or rather, I will explain the problem: > > > > Previously, we had a graph for everything. > > Now, we are moving to a world where there will be several graphs to > > separate the contexts of business. > > We have properties's range has several classes of graphs. > > > > The problem is: When using inference I cannot use more than one > > inference rule per query. > > > > I used two graphs with the same name as a rule. With this idea the > > database wasn't overwritten and everything works. > > However I had pour performance with this aproach. Since there are > > multiple graphs. > > > > I wonder that if all these rules on the use of inference on the graphs > > were a single rule it would perform better. > > Do you have any idea? > > > > If there is a business rule that I can only use one rule of inference > > by query thats all right. > > > > But it will be more ideal for us today if we could pass the query over > > an inference rule. > > > > Query: > > > > define input:default-graph-uri <http://example.com/> > > define input:inference <http://example.com/ruleset> > > > > select distinct ?s > > FROM <http://example.com/sport/> > > > > { > > > > { > > ?s a <http://example.com/Event> ; ?p ?o . > > ?o bif:contains "'League*'" . > > } > > > > } > > LIMIT 10 > > > > There is the possibility to continue using a rule of inference for > > each graph > > with this solution I would have to make two queries and do a merge. > > > > Can anyone help? > > Have any idea? > > > > > > Cheers, > > Renan Oliveira > > Y! glb_renan > > > ------------------------------------------------------------------------------ > > Gaining the trust of online customers is vital for the success of any > company > > that requires sensitive data to be transmitted over the Web. Learn how > to > > best implement a security strategy that keeps consumers' information > secure > > and instills the confidence they need to proceed with transactions. > > http://p.sf.net/sfu/oracle-sfdevnl > > _______________________________________________ Virtuoso-users mailing > list [email protected] > https://lists.sourceforge.net/lists/listinfo/virtuoso-users > > >
