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https://issues.apache.org/jira/browse/JENA-340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Seaborne resolved JENA-340.
--------------------------------

    Resolution: Fixed
    
> Quad rewrite of NOT EXISTS does not notice inner GRAPH
> ------------------------------------------------------
>
>                 Key: JENA-340
>                 URL: https://issues.apache.org/jira/browse/JENA-340
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: ARQ, TDB
>    Affects Versions: ARQ 2.9.4
>            Reporter: Andy Seaborne
>            Assignee: Andy Seaborne
>
> Test case:
> PREFIX  :   <http://example/>
> SELECT *
> {
>    FILTER NOT EXISTS{
>      GRAPH :foo { ?s ?p ?o } 
> }}
> ==>
> (prefix ((: <http://example/>))
>   (filter (notexists
>              (quadpattern (quad <urn:x-arq:DefaultGraphNode> ?s ?p ?o)))
>     (table unit)))
> Should be (quad :foo ?s ?p ?o)
> Triple-based execution works; quad based execution does not.

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