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  1. Hadoop Common
  2. HADOOP-4230

Hive: GroupBy should not pass the whole row from mapper to reducer

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Details

    • Improvement
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • None
    • 0.19.0
    • None
    • None
    • Reviewed

    Description

      We only need to pass fields that are needed.

      Attachments

        1. 127367-2.patch
          1.57 MB
          Joydeep Sen Sarma

        Activity

          People

            athusoo Ashish Thusoo
            zshao Zheng Shao
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            Dates

              Created:
              Updated:
              Resolved: