Maybe this article can help:
http://wwwconference.org/www2008/papers/pdf/p595-stocker1.pdf
It's about BGPs not graph patterns, but I guess selectivity still applies.
On Wed, 25 Oct 2017 at 03.17, Dimov, Stefan wrote:
> Let’s consider the following JOIN:
>
> SELECT $subj
> FROM NAMED ng1
> FROM
Let’s consider the following JOIN:
SELECT $subj
FROM NAMED ng1
FROM NAMED ng2
{
GRAPH ng1 { $subj $pred0 $obj0 }
GRAPH ng2 { $subj $pred1 $obj1 }
}
My question is: Does the order of the clauses affect the performance? Let’s say
that ng1 is much bigger than ng2. If SPARQL ap
Hi,
I thought I understood how OntClass.listSuperClasses() works, but maybe I
don't.
I have such a class structure in my ontology (superclass is at the top):
3. https://www.w3.org/ns/ldt/document-hierarchy/domain#Item
2. http://atomgraph.com/ns/platform/domain#Item
1. https://localho
Yup, I think I get this. What I don't get is what a "service" is?
Sent: Tuesday, October 24, 2017 at 9:36 PM
From: "Andy Seaborne"
To: users@jena.apache.org
Subject: Re: Fuseki+HDT graceful "File not found"
On 24/10/17 11:57, Laura Morales wrote:
> "each data service is an RDF datasets and
On 24/10/17 11:57, Laura Morales wrote:
"each data service is an RDF datasets and a configurable set of endpoints for various
operations such as SPARQL query, SPARQL update and file upload" How is this different than a
"normal" standalone installation?
It's not - the standalone server loo
On 2017-10-24 16:56, Lorenz Buehmann wrote:
> Hi,
>
> minor comments inline:
>
>
> On 23.10.2017 22:44, George News wrote:
>> Hi Rob,
>>
>> Thanks for your really helpful comments.
>>
>> As you mention the stack trace is not the one of the query. I actually
>> don't have the query that originate
Hi,
minor comments inline:
On 23.10.2017 22:44, George News wrote:
> Hi Rob,
>
> Thanks for your really helpful comments.
>
> As you mention the stack trace is not the one of the query. I actually
> don't have the query that originated that stack trace as this was in
> production and I was not l
> The best Fuseki could do is scan for new services in run/services.
Could you please explain briefly what is a Fuseki service? I also don't see any
"services" folder under run/. The documentation doesn't have a lot of
information either
(https://jena.apache.org/documentation/fuseki2/fuseki-dat
On 23/10/17 18:34, Laura Morales wrote:
Which again would be the task of the HDT-Fuseki library, not Jena Fuseki.
You mean this one? https://github.com/rdfhdt/hdt-java/tree/master/hdt-fuseki
The best Fuseki could do is scan for new services in run/services.
Changes within a service need
