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  1. Hive
  2. HIVE-1900

a mapper should be able to span multiple partitions

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 0.7.0
    • Query Processor
    • None

    Description

      Currently, a mapper only spans a single partition which creates a problem in the presence of many
      small partitions (which is becoming a common usecase in facebook).

      If the plan is the same, a mapper should be able to span files across multiple partitions

      Attachments

        1. hive.1900.1.patch
          341 kB
          Namit Jain
        2. hive.1900.2.patch
          341 kB
          Namit Jain

        Activity

          People

            namit Namit Jain
            namit Namit Jain
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            Dates

              Created:
              Updated:
              Resolved: