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https://issues.apache.org/jira/browse/LUCENE-3450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113372#comment-13113372
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Uwe Schindler commented on LUCENE-3450:
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>From your example patch, i see only MUST_NOT clauses. This cannot work.
As I was working on BooleanFilter yesterday, I know that BooleanFilter has a
hack to support pure-negative queries. BooleanQuery with only negative clauses
always returns no results (I was thinking about removing the stupid hack in BF,
because it cannot correctly handle deleted docs.... - its still there because
backwards compatibility)
> BooleanQuery seems broken on trunk
> ----------------------------------
>
> Key: LUCENE-3450
> URL: https://issues.apache.org/jira/browse/LUCENE-3450
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Karl Wright
> Attachments: filter.diff, query.diff
>
>
> Converting a Solr SearchComponent from using filters to using equivalent
> queries causes its test cases to fail. The reasons are unclear, and I've
> tried several things to isolate the problem, but with no luck so far.
> The failure manifests itself by the constructed query returning no documents
> whatsoever, at least within the Solr context it's being used in. The
> equivalent filter version of the component works properly (as you can see by
> the passed test).
> To run the test:
> cd solr/contrib/mcf
> ant test
> I will attach both filter and query versions of the code, as patches.
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