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 <[email protected]>
> 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 <[email protected]>
>
>> 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 <[email protected] <mailto:[email protected]>>
>>>
>>> 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
>>> [email protected]
>>> 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
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/virtuoso-users
>
>
>
