[jira] [Resolved] (STANBOL-424) SPARQL queries using FROM/FROM NAMED do not work as expected

["Rupert Westenthaler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STANBOL-424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rupert Westenthaler resolved STANBOL-424.
-----------------------------------------

    Resolution: Not A Problem

The Stanbol SPARQL Endpoint operates TripleCollections. However you can use the "graphuri" parameter to define the URI of the Graph that is used by the qeury.

So a request to 

  http://{stanbol-instance}/sparql?graphuri=http://www.example.org/somegraph&query=SELECT ?s ?p ?o ...

should work if "http://www.example.org/somegraph" is registered.

AFAIK there are no plans to add named graph support to the Stanbol SPARQL endpoint. 
                
> SPARQL queries using FROM/FROM NAMED do not work as expected
> ------------------------------------------------------------
>
>                 Key: STANBOL-424
>                 URL: https://issues.apache.org/jira/browse/STANBOL-424
>             Project: Stanbol
>          Issue Type: Bug
>          Components: Contenthub
>            Reporter: Stephen Bayliss
>            Priority: Minor
>             Fix For: contenthub-0.10.0
>
>
> The following query returns results from a specific graph as expected:
> SELECT ?s ?p ?o
> WHERE {
>   GRAPH <http://www.example.org/somegraph> ;
>   { ?s ?p ?o . }
> }
> However using FROM or FROM NAMED as per the following queries does not return any results:
> SELECT ?s ?p ?o
> FROM NAMED  <http://www.example.org/somegraph> ;
> WHERE {
>   ?s ?p ?o .
> }
> SELECT ?s ?p ?o
> FROM <http://www.example.org/somegraph> ;
> WHERE {
>   ?s ?p ?o .
> }

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