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  1. Solr
  2. SOLR-237

Field collapsing

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Details

    • New Feature
    • Status: Closed
    • Major
    • Resolution: Duplicate
    • 1.1.0
    • 1.1.0
    • search
    • None

    Description

      This patch include a new feature called "Field collapsing".

      "Used in order to collapse a group of results with similar value for a given field to a single entry in the result set. Site collapsing is a special case of this, where all results for a given web site is collapsed into one or two entries in the result set, typically with an associated "more documents from this site" link. See also Duplicate detection."
      http://www.fastsearch.com/glossary.aspx?m=48&amid=299

      The implementation add 3 new query parameters (SolrParams):
      "collapse" set to true to enable collapsing.
      "collapse.field" to choose the field used to group results
      "collapse.max" to select how many continuous results are allowed before collapsing

      TODO (in progress):

      • More documentation (on source code)
      • Test cases

      Attachments

        1. field_collapsing_1.1.0.patch
          15 kB
          Emmanuel Keller
        2. field_collapsing-1.1.patch
          6 kB
          Emmanuel Keller

        Issue Links

          relates to

          New Feature - A new feature of the product, which has yet to be developed. SOLR-236 Field collapsing

          • Major - Major loss of function.
          • Closed

          Activity

            People

              Unassigned Unassigned
              ekeller Emmanuel Keller
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              Dates

                Created:
                Updated:
                Resolved: