Problem with count and distinct

[moissinac]

I'm trying the following request

select (count(distinct ?serie) as ?c) where {
graph <http://givingsense.eu/onto/sembib/channels> { 
?s <http://givingsense.eu/onto/sembib/inConf> ?o .
?o ?p ?serie
}
}

and I get No result bindings specified. in ARC2_SPARQLPlusParser

I see nothing in the doc which say that such construct in unsupported. Am I wrong?

EDIT by @k00ni: added syntax highlighting to query.

[johanneshahn]

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[k00ni]

Hi @moissinac, here is a COUNT example: https://github.com/semsol/arc2/wiki/SPARQL-#aggregate-example

Also using GRAPH in your WHERE clause is not supported by ARC2. Its also required when using URIs to have < and > around.

This query may get the job done:

SELECT count(?serie) as ?c
FROM <http://givingsense.eu/onto/sembib/channels>
WHERE {
    ?s <http://givingsense.eu/onto/sembib/inConf> ?o .
    ?o ?p ?serie
}
GROUP BY ?serie

[k00ni]

Closed, because no response. Please reopen, if problem persists.