Uploaded image for project: 'Lucene - Core'
  1. Lucene - Core
  2. LUCENE-5735

Faceting for DateRangePrefixTree

    XMLWordPrintableJSON

Details

    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • 5.3
    • modules/spatial
    • None
    • New

    Description

      The newly added DateRangePrefixTree (DRPT) encodes terms in a fashion amenable to faceting by meaningful time buckets. The motivation for this feature is to efficiently populate a calendar bar chart or heat-map. It's not hard if you have date instances like many do but it's challenging for date ranges.

      Internally this is going to iterate over the terms using seek/next with TermsEnum as appropriate. It should be quite efficient; it won't need any special caches. I should be able to re-use SPT traversal code in AbstractVisitingPrefixTreeFilter. If this goes especially well; the underlying implementation will be re-usable for geospatial heat-map faceting.

      Attachments

        1. LUCENE-5735.patch
          51 kB
          David Smiley
        2. LUCENE-5735.patch
          26 kB
          David Smiley
        3. LUCENE-5735__PrefixTreeFacetCounter.patch
          27 kB
          David Smiley

        Issue Links

          Activity

            People

              dsmiley David Smiley
              dsmiley David Smiley
              Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

                Created:
                Updated: