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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/12/18 11:56:46 UTC

[jira] [Created] (LUCENE-6940) Bulk scoring could speed up MUST_NOT clauses

Adrien Grand created LUCENE-6940:
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             Summary: Bulk scoring could speed up MUST_NOT clauses
                 Key: LUCENE-6940
                 URL: https://issues.apache.org/jira/browse/LUCENE-6940
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand
            Assignee: Adrien Grand
            Priority: Minor


Today when you have MUST_NOT clauses, the ReqExclScorer is used and needs to check the excluded clauses on every iteration. I suspect we could speed things up by having a BulkScorer that would advance the excluded clause first and then tell the required clause to bulk score up to the next excluded document.



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