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https://issues.apache.org/jira/browse/JENA-781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Seaborne closed JENA-781.
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> XML Literal used in FILTER NOT IN leads to incorrect results
> ------------------------------------------------------------
>
> Key: JENA-781
> URL: https://issues.apache.org/jira/browse/JENA-781
> Project: Apache Jena
> Issue Type: Bug
> Components: ARQ, Optimizer
> Affects Versions: Jena 2.12.0
> Reporter: Rob Vesse
> Assignee: Andy Seaborne
>
> Originally spotted this while answering a question on Answers -
> http://answers.semanticweb.com/questions/30243/sparql-in-problem
> The actual question had a bug in the users data but even with that fixed
> incorrect query results were still received. I have reduced this to a
> following query that demonstrates that the issue is with the presence of a
> XML Literal in the {{NOT IN}} list
> Working query:
> {noformat}
> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> SELECT ?x
> WHERE
> {
> VALUES ?x { <http://uri> "a" 2 true }
> }
> {noformat}
> Broken query:
> {noformat}
> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> SELECT ?x
> WHERE
> {
> VALUES ?x { <http://uri> "a" 2 true }
> FILTER(?x NOT IN ("<foo />"^^rdf:XMLLiteral))
> }
> {noformat}
> The expected results are the same for both queries, all four values given for
> {{?x}} should be returned. However the second query with the {{FILTER}} only
> returns {{http://uri}}
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