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  1. Lucene - Core
  2. LUCENE-2590

Enable access to the freq information in a Query's sub-scorers

Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.1, 4.0-ALPHA
    • core/search
    • None
    • New

    Description

      The ability to gather more details than just the score, of how a given
      doc matches the current query, has come up a number of times on the
      user's lists. (most recently in the thread "Query Match Count" by
      Ryan McV on java-user).

      EG if you have a simple TermQuery "foo", on each hit you'd like to
      know how many times "foo" occurred in that doc; or a BooleanQuery +foo
      +bar, being able to separately see the freq of foo and bar for the
      current hit.

      Lucene doesn't make this possible today, which is a shame because
      Lucene in fact does compute exactly this information; it's just not
      accessible from the Collector.

      Attachments

        1. LUCENE-2590.patch
          16 kB
          Michael McCandless
        2. LUCENE-2590.patch
          19 kB
          Michael McCandless
        3. LUCENE-2590.patch
          30 kB
          Simon Willnauer
        4. LUCENE-2590.patch
          26 kB
          Simon Willnauer
        5. LUCENE-2590.patch
          32 kB
          Simon Willnauer
        6. LUCENE-2590.patch
          31 kB
          Simon Willnauer

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              simonw Simon Willnauer
              mikemccand Michael McCandless
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              Dates

                Created:
                Updated:
                Resolved: