tag:blogger.com,1999:blog-8288183.post6146837939930101077..comments2023-11-05T04:50:49.218-05:00Comments on Vowel Movement: The Poor State of SPARQL ImplementationsAnonymoushttp://www.blogger.com/profile/16377117761292204691noreply@blogger.comBlogger11125tag:blogger.com,1999:blog-8288183.post-27324970217818339992007-11-08T14:59:00.000-05:002007-11-08T14:59:00.000-05:00Ah! Changing "select" to "select distinct" does r...Ah! Changing "select" to "select distinct" does return two results. Thanks.Anonymoushttps://www.blogger.com/profile/16377117761292204691noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-26084283975467718522007-11-07T10:49:00.000-05:002007-11-07T10:49:00.000-05:00Please use DISTINCT in your query. Our SPARQL proc...Please use DISTINCT in your query. Our SPARQL processor is cognizant of the potential for extremely large graphs in the FROM and the implications of performing UNIONs etc..Kingsley Idehenhttps://www.blogger.com/profile/08186794286722227377noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-40337209814611393262007-11-06T10:20:00.000-05:002007-11-06T10:20:00.000-05:00Thanks to all who responded! I am thrilled to see...Thanks to all who responded! I am thrilled to see this problem addressed.<BR/><BR/>Yrjänä and Kingsley: http://demo.openlinksw.com/sparql does indeed now return four results, just as http://demo.openlinksw.com/isparql does. Thanks very much for the update. However, I still do not see why there should be four results. I expect two.<BR/><BR/>Dave B: Thanks for your update. I did not try the latest Redland/Rasql from svn, but will now do so. Again, though, I do not understand why you would get four results.<BR/><BR/>Danny: http://www.sparql.org/sparql.html returns two results! You win :) I did try SPARQLer, so I am not sure if you updated it, but it does work and returns what I think are the correct results. Thanks again.Anonymoushttps://www.blogger.com/profile/16377117761292204691noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-9064708605276007202007-11-05T15:01:00.000-05:002007-11-05T15:01:00.000-05:00Hi There Again,The instance on http://demo.openlin...Hi There Again,<BR/><BR/>The instance on http://demo.openlinksw.com/sparql has been updated, hence the response from Yrjana re. proper results :-)<BR/><BR/>We now have /isparql and /sparql behaving properly.<BR/><BR/>KingsleyKingsley Idehenhttps://www.blogger.com/profile/08186794286722227377noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-16632546604288454072007-11-05T14:14:00.000-05:002007-11-05T14:14:00.000-05:00Hi!I just verified this query (cut and paste) agai...Hi!<BR/><BR/>I just verified this query (cut and paste) against demo.openlinksw.com/sparql and I got 4 results as I believe should be expected.<BR/><BR/>Best Regards,<BR/><BR/>Yrjänä Rankka<BR/>Developer, Virtuoso Team<BR/>OpenLink SoftwareYrjänä Rankkahttps://www.blogger.com/profile/18279289463934270589noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-20082642986612452052007-11-05T05:32:00.000-05:002007-11-05T05:32:00.000-05:00Appears to work ok on in the ARQ online demo (I've...Appears to work ok on in the ARQ online demo (I've been using mostly ARQ/Jena recently, not noticed anything missing).<BR/><BR/>http://www.sparql.org/sparql.htmlDannyhttps://www.blogger.com/profile/03703352768894605596noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-11210882744770037102007-11-05T00:48:00.000-05:002007-11-05T00:48:00.000-05:00This query worked fine with Redland/Rasqal cut and...This query worked fine with Redland/Rasqal cut and paste exactly from your comment (using the latest Rasqal SVN). I don't know where you were trying it. There are 4 results.Dave Becketthttps://www.blogger.com/profile/15094818981045762858noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-16632160160445513932007-11-04T22:17:00.000-05:002007-11-04T22:17:00.000-05:00Thanks! The iSPARQL endpoint does, in fact, work....Thanks! The iSPARQL endpoint does, in fact, work. Any idea why the results are duplicated?Anonymoushttps://www.blogger.com/profile/16377117761292204691noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-33273580647657698522007-11-04T21:23:00.000-05:002007-11-04T21:23:00.000-05:00Hi There,I just tested your query using our SPARQL...Hi There,<BR/><BR/>I just tested your query using our SPARQL endpoints at:<BR/><BR/>http://demo.openlinksw.com/sparql and http://demo.openlinksw.com/isparql (our SPARQL Query Builder).<BR/><BR/>The Query works fine via /isparql but actually returns an empty result via the /sparql endpoint (i.e. the proper generic access endpoint).<BR/><BR/>I suspect a cache related bug, so please do not write off Virtuoso and this is a very small thing :-)Kingsley Idehenhttps://www.blogger.com/profile/08186794286722227377noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-73327745857585322502007-11-04T20:24:00.000-05:002007-11-04T20:24:00.000-05:00Thanks, Rich. Unfortunately, I don't have control...Thanks, Rich. Unfortunately, I don't have control over the university's server and so can't change the Content-Type. I can host them elsewhere, though, so I'll try it.Anonymoushttps://www.blogger.com/profile/16377117761292204691noreply@blogger.comtag:blogger.com,1999:blog-8288183.post-47978013013916286822007-11-04T19:58:00.000-05:002007-11-04T19:58:00.000-05:00It would work easily in AllegroGraph if your OWL o...It would work easily in AllegroGraph if your OWL ontologies weren't served up as N-Triples (you're using text/plain as the content-type, which is incorrect). You can optionally configure AG to load required graphs in response to SPARQL Protocol requests.<BR/><BR/>Having manually imported those files (AllegroGraph could do it automatically if you used the correct content-type!), it runs your query in 3ms on my personal server.<BR/><BR/>This stuff ain't hard. I don't know why more implementations don't do it.Richardhttps://www.blogger.com/profile/15852265809274399143noreply@blogger.com