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https://issues.apache.org/jira/browse/MARMOTTA-552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14173564#comment-14173564
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ASF subversion and git services commented on MARMOTTA-552:
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Commit fa8ef614e2029d2a3d1eb27d756a968199e2ce94 in marmotta's branch
refs/heads/develop from [~wastl]
[ https://git-wip-us.apache.org/repos/asf?p=marmotta.git;h=fa8ef61 ]
fix MARMOTTA-552 (complex UNION with subquery)
> 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
> Assignee: Sebastian Schaffert
> Labels: SPARQL
>
> 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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