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Posted to issues@lucene.apache.org by "Bruno Roustant (Jira)" <ji...@apache.org> on 2020/02/20 22:16:00 UTC

[jira] [Created] (LUCENE-9237) Faster TermsEnum intersect for UniformSplit

Bruno Roustant created LUCENE-9237:
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             Summary: Faster TermsEnum intersect for UniformSplit
                 Key: LUCENE-9237
                 URL: https://issues.apache.org/jira/browse/LUCENE-9237
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Bruno Roustant
            Assignee: Bruno Roustant


New version of TermsEnum intersect for UniformSplit. It is 70% more efficient than the previous version for FuzzyQuery.

Compared to BlockTree IntersectTermsEnum:
- It is still slower for FuzzyQuery (-40%) but it is faster than the previous version (which was -65%).
- It is roughly same speed for WildcardQuery (-5%).
- It is slightly faster for PrefixQuery (+5%). Sometimes benchmarks show more improvement (I've seen up to +17% a third of the time).



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