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Posted to dev@lucene.apache.org by "Adrien Grand (JIRA)" <ji...@apache.org> on 2015/02/19 10:44:11 UTC

[jira] [Created] (LUCENE-6260) Simplify ExactPhraseScorer

Adrien Grand created LUCENE-6260:
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             Summary: Simplify ExactPhraseScorer
                 Key: LUCENE-6260
                 URL: https://issues.apache.org/jira/browse/LUCENE-6260
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Adrien Grand
            Priority: Minor


ExactPhraseScorer tries to intersect positions using windows of 4096 documents. In LUCENE-2410 it was reported that it helped a lot but I tried again on wikibig with a simpler impl that does advance one position at a time and the performance difference was only of a few percents. I'm guessing that maybe other changes (eg. the new postings format?) do not make this behaviour as useful as it used to be?



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