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  1. Hive
  2. HIVE-1738

Optimize Key Comparison in GroupByOperator

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.7.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      GroupByOperator uses ObjectInspectorUtils.compare() to compare keys, which is written for generalized object comparisons, which is not optimized for group-by operator. By optimizing this logic, we expect to see obvious improvements in GroupByOperator.

        Attachments

        1. HIVE.1738.3.patch
          12 kB
          Siying Dong
        2. HIVE.1738.2.patch
          11 kB
          Siying Dong
        3. HIVE.1738.1.patch
          11 kB
          Siying Dong

          Activity

            People

            • Assignee:
              sdong Siying Dong
              Reporter:
              sdong Siying Dong
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              Dates

              • Created:
                Updated:
                Resolved: