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NOT EXISTS filter doesn't seem to work with VALUES clause #122

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joernhees opened this Issue Dec 18, 2013 · 1 comment

3 participants

@joernhees

Tried on DBpedia endpoint:

This query works:

select ?t
where {
    dbpedia:Barack_Obama a ?t.
    FILTER(NOT EXISTS {
        ?t a dbpedia:foo.
    })
}

This doesn't:

select ?s ?t
where {
    ?s a ?t.
    FILTER(NOT EXISTS {
        ?t a dbpedia:foo.
    })
    VALUES (?s) { (dbpedia:Barack_Obama) (dbpedia:Angela_Merkel) }
}

No results?!?

Notice how it works in this one:

select ?s ?t
where {
    ?s a ?t.
    FILTER(NOT EXISTS {
        ?t a dbpedia:foo.
    })
    VALUES (?s) { (dbpedia:Barack_Obama) }
}
@HughWilliams
Collaborator

We are looking into this ...

@iv-an-ru iv-an-ru was assigned Jan 31, 2014
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