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  1. Lucene - Core
  2. LUCENE-8040

Optimize IndexSearcher.collectionStatistics

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 8.0
    • core/search
    • None
    • New

    Description

      IndexSearcher.collectionStatistics(field) can do a fair amount of work because with each invocation it will call MultiFields.getTerms(...). The effects of this are aggravated for queries with many fields since each field will want statistics, and also aggravated when there are many segments.

      Attachments

        1. LUCENE-8040.patch
          2 kB
          David Smiley
        2. LUCENE-8040.patch
          2 kB
          David Smiley
        3. lucenecollectionStatisticsbench.zip
          64 kB
          David Smiley
        4. MyBenchmark.java
          9 kB
          David Smiley

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            dsmiley David Smiley
            dsmiley David Smiley
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              Updated:
              Resolved:

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