Thomas Kurz created MARMOTTA-552:
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             Summary: Sparql Query for Dataset View fails
                 Key: MARMOTTA-552
                 URL: https://issues.apache.org/jira/browse/MARMOTTA-552
             Project: Marmotta
          Issue Type: Bug
            Reporter: Thomas Kurz


The dataset view tries to list classes with a SPARQL query that fails:
{code}
SELECT  ?class (count(?s) AS ?count)
   WHERE
     {   { ?s <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ?class }
       UNION
         { SELECT  ?s
           WHERE
             { ?s ?a ?b
               FILTER NOT EXISTS {?s 
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ?class }
             }
          GROUP BY ?s
        }
    }
  GROUP BY ?class
{code}



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