Spyros Kapnissis created LUCENE-7416:
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Summary: 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
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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