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  1. Lucene - Core
  2. LUCENE-4964

Allow custom drill-down sub-queries

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 4.4, 6.0
    • modules/facet
    • None
    • New

    Description

      Today the facet module indexes a term for each facet added to a
      document, and DrillDown/SidewaysQuery assume this by creating a
      TermQuery, or OR of TermQuery, for each dimension the app drills down
      on.

      I think we should relax this and allow an [expert] arbitrary query to
      drill down on a given dimension ... e.g., this can enable future
      dynamic faceting methods, or custom app drill-down methods.

      It's easy for DrillDownQuery to do this, but requires generalization
      in DrillSideways, basically just reviving the first approach on
      LUCENE-4748. This approach is somewhat slower, but more general
      ... it will keep using the current method as an optimization when it
      applies.

      This should also fix the possible performance regression from
      LUCENE-4952 when scoreSubDocsAtOnce is true, by using the
      MinShouldMatchSumScorer in that case.

      Attachments

        1. LUCENE-4964.patch
          26 kB
          Michael McCandless

        Activity

          People

            mikemccand Michael McCandless
            mikemccand Michael McCandless
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            Dates

              Created:
              Updated:
              Resolved: