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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

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            namit Namit Jain Assign to me
            namit Namit Jain
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            Dates

              Created:
              Updated:
              Resolved:

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