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  1. Pig
  2. PIG-4377

Skewed outer join produce wrong result if a key is oversampled

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.15.0
    • Component/s: impl
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Skewed outer join produce more than expected rows under certain condition. The extra rows contain null left relation. Can be reproduced reliably with reproduce.patch (run SkewedJoin_11).

        Attachments

        1. PIG-4377-4.patch
          10 kB
          Daniel Dai
        2. PIG-4377-3.patch
          1 kB
          Daniel Dai
        3. PIG-4377-2.patch
          28 kB
          Daniel Dai
        4. PIG-4377-1.patch
          16 kB
          Daniel Dai
        5. reproduce.patch
          6 kB
          Daniel Dai

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              • Assignee:
                daijy Daniel Dai
                Reporter:
                daijy Daniel Dai
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                Dates

                • Created:
                  Updated:
                  Resolved: