[jira] [Created] (LUCENE-7840) BooleanQuery.rewriteNoScoring - optimize away any SHOULD clauses if at least 1 MUST/FILTER clause and 0==minShouldMatch

["Hoss Man (JIRA)" <ji...@apache.org>]

Hoss Man created LUCENE-7840:
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             Summary: BooleanQuery.rewriteNoScoring - optimize away any SHOULD clauses if at least 1 MUST/FILTER clause and 0==minShouldMatch
                 Key: LUCENE-7840
                 URL: https://issues.apache.org/jira/browse/LUCENE-7840
             Project: Lucene - Core
          Issue Type: Task
            Reporter: Hoss Man


I haven't thought this through completely, let alone write up a patch / test case, but IIUC...

We should be able to optimize  {{ BooleanQuery rewriteNoScoring() }} so that (after converting MUST clauses to FILTER clauses) we can check for the common case of {{0==getMinimumNumberShouldMatch()}} and throw away any SHOULD clauses as long as there is is at least one FILTER clause.



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