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  1. Hive
  2. HIVE-3432

perform a map-only group by if grouping key matches the sorting properties of the table

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.10.0
    • Query Processor
    • None

    Description

      There should be an option to use bucketizedinputformat and use map-only group by. There would be no need to perform a map-side aggregation.

      Attachments

        1. hive.3432.1.patch
          302 kB
          Namit Jain
        2. hive.3432.2.patch
          313 kB
          Namit Jain
        3. hive.3432.3.patch
          350 kB
          Namit Jain
        4. hive.3432.4.patch
          350 kB
          Namit Jain
        5. hive.3432.5.patch
          349 kB
          Namit Jain
        6. hive.3432.6.patch
          376 kB
          Namit Jain
        7. hive.3432.7.patch
          376 kB
          Namit Jain
        8. hive.3432.8.patch
          739 kB
          Namit Jain

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-12325 Turn hive.map.groupby.sorted on by default

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. HIVE-3647 map-side groupby wrongly due to HIVE-3432

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HIVE-3888 wrong mapside groupby if no partition is being selected

          • Major - Major loss of function.
          • Closed

          Activity

            People

              namit Namit Jain
              namit Namit Jain
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              Dates

                Created:
                Updated:
                Resolved: