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https://issues.apache.org/jira/browse/LUCENE-7416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15436879#comment-15436879
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ASF subversion and git services commented on LUCENE-7416:
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Commit 1ac9609caedbf739379bdabdac909f77fee2f5c6 in lucene-solr's branch
refs/heads/branch_6x from [~jpountz]
[ https://git-wip-us.apache.org/repos/asf?p=lucene-solr.git;h=1ac9609 ]
LUCENE-7416: Rewrite optimizations for BooleanQuery.
> BooleanQuery rewrite optimizations
> ----------------------------------
>
> Key: LUCENE-7416
> URL: https://issues.apache.org/jira/browse/LUCENE-7416
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/search
> Affects Versions: master (7.0)
> Reporter: Spyros Kapnissis
> Priority: Minor
> Attachments: LUCENE-7146.patch
>
>
> A couple of BooleanQuery rewrites / optimizations.
> First, as discussed on the user group, a BooleanQuery with a query that is
> both a SHOULD and a FILTER can be rewritten as a single MUST query, but care
> must be taken to decrement minShouldMatch by 1.
> Another case is if a query is both required (MUST or FILTER) and MUST_NOT at
> the same time, it can be converted to a MatchNoDocsQuery (although I haven't
> discussed this yet so hopefully I'm not missing something!).
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