Hi Hugh, There wasn't any error. As there isn't "geometry" predicate at my instance, Virtuoso doesn't find assertions with it and returns empty result set. Just compare: 1. endpoint: lod.openlinksw.com/sparq query: SELECT * WHERE {< http://linkedgeodata.org/triplify/node/163043169#id> ?p ?o .} 2. endpoint: http://ec2-184-73-209-65.compute-1.amazonaws.com/sparql query: SELECT * FROM <http://linkedgeodata.org/content#> WHERE {< http://linkedgeodata.org/triplify/node/163043169#id> ?p ?o .}
"geometry" predicate exists in the first case but doesn't in the second one. P. S. I use Virtuoso Cloud Edition 06.01.3127 Regards, Alexander 2010/5/18 Hugh Williams <hwilli...@openlinksw.com> > Hi Alexander, > > Are the LGD queries that worked against the lod.openlinksw.com server > giving a specific error when you attempt to run against your EC2 AMI with > the LGD datasets loaded ? Also what is the exact version of the Virtuoso EC2 > AMI, this will be reported in the left frame of the conductor UI ? > > Best Regards > Hugh Williams > Professional Services > OpenLink Software > Web: http://www.openlinksw.com > Support: http://support.openlinksw.com > Forums: http://boards.openlinksw.com/support > Twitter: http://twitter.com/OpenLink > > On 17 May 2010, at 18:04, Alexander Sidorov wrote: > > Hi Kingsley, > > Yes, geo capabilities work very well under Virtuoso Cloud Edition (good > performance was a great surprise after migrating from lod.openlinksw.comto > custom Amazon EC2 instance). Here I will quote the initial question to > point out the problem: > > "Prevously I executed LGD queries using lod.openlinksw.com endpoint (where > full LGD is loaded). Today I have loaded LGD Elements to my custom Virtuoso > instance and all LGD queries became broken. As I have found out "geometry" > predicate is absent at LGD Elements dataset. Changing "geometry" to > combination of "lat" and "long" solved my problem. But please put the note > concerning "geometry" predicate at linkedgeodata.org/datasets page to > prevent other people to struggle with this problem." > > Regards, > Alexander > > 2010/5/17 Kingsley Idehen <kide...@openlinksw.com> > >> Alexander Sidorov wrote: >> >>> Hi Alex, >>> >>> You are right, geo-capabilities are included only in commercial Virtuoso >>> instances. But it is my case (as I use Virtuoso Cloud Edition). I hope >>> OpenLink guys can clarify this behaviour so I have added virtuoso-users to >>> cc. >>> >> >> Cloud Edition is the Commercial Edition so you have SPARQL-GEO and related >> GeopSpatial index capabilities. >> >> >> Kingsley >> >>> >>> Regards, >>> Alexander >>> >>> 2010/5/17 Alex Tucker <a...@floop.org.uk <mailto:a...@floop.org.uk>> >>> >>> Hi Alexander, >>> >>> >>> >>>> I followed the link you provided but haven't found any >>>> information concerning "geometry" predicate generation. Could you >>>> please point to it? Also it is strange "geometry" predicate is >>>> generated at lod.openlinksw.com <http://lod.openlinksw.com> but >>>> >>>> is not generated at my custom Virtuoso instance. >>>> >>> >>> My understanding is that the geometry predicate is computed by >>> Virtuoso and is only available in the commercial edition, not the >>> free open source edition. This explains why you can use it at >>> lod.openlinksw.com <http://lod.openlinksw.com> and potentially at >>> >>> the new LGD servers, as I believe OpenLink donated a commercial >>> license to run the LGD servers too. >>> >>> Alex. >>> >>> >>> ------------------------------------------------------------------------ >>> >>> >>> ------------------------------------------------------------------------------ >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> Virtuoso-users mailing list >>> Virtuoso-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>> >>> >> >> >> -- >> >> Regards, >> >> Kingsley Idehen President & CEO OpenLink Software Web: >> http://www.openlinksw.com >> Weblog: >> http://www.openlinksw.com/blog/~kidehen<http://www.openlinksw.com/blog/%7Ekidehen> >> Twitter/Identi.ca: kidehen >> >> >> >> >> > > ------------------------------------------------------------------------------ > > > _______________________________________________ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users > > >