Hi Quentin,
I have asked development to check this ...
Best Regards
Hugh Williams
Professional Services
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On 26 Nov 2013, at 04:33, Quentin <quent...@clearbluewater.com.au> wrote:
> Incorrect results appear to be generated when running this against:
> http://dbpedia.org/sparql
>
> As written, two rows are returned which are correct. When the NOT EXISTS
> filter is uncommented, no results are returned despite that triple clearly
> not existing.
> ======================================
> prefix : <http://dbpedia.org/ontology/>
> with <http://dbpedia.org>
> SELECT distinct(?o) WHERE {
> ?s :birthPlace ?o .
> FILTER ( ?o IN (<http://dbpedia.org/resource/Colchester>,
> <http://dbpedia.org/resource/Cookstown>))
>
> # If you uncomment this line, no results will be returned.
> # FILTER NOT EXISTS { ?o <THISDOESNOTEXIST> "NONEXISTENT
> LITERAL"^^xsd:string .}
> } LIMIT 10
> ======================================
>
> Am I misinterpreting the implementation of NOT EXISTS?
>
> --
> Quentin | Clear Blue Water Pty Ltd
> quent...@clearbluewater.com.au
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