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  1. Solr
  2. SOLR-8057 Change default Sim to BM25 (w/backcompat config handling)
  3. SOLR-8261

Change the wrapped per-field default in SchemaSimilarityFactory to BM25 (conditional on luceneMatchVersion for backcompat)

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 6.0
    • None
    • None

    Description

      As outlined in parent issue...

      • use ClassicSimilarity as per-field default when luceneMatchVersion < 6.0
      • use BM25Similarity as per-field default when luceneMatchVersion >= 6.0

      SOLR-8329 can be used for folks who really want ClassicSimilarity as the per-field default but also really want luceneMatchVersion >= 6.0 for any other reasons

      Attachments

        1. SOLR-8261.patch
          5 kB
          Chris M. Hostetter

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. SOLR-8329 SchemaSimilarityFactory should support a config option for the defaultSimilarity

          • Major - Major loss of function.
          • Closed

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            People

              hossman Chris M. Hostetter
              hossman Chris M. Hostetter
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              Dates

                Created:
                Updated:
                Resolved: