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  1. Spark
  2. SPARK-12686

Support group-by push down into data sources

    Details

    • Type: Improvement
    • Status: In Progress
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 1.6.0
    • Fix Version/s: None
    • Component/s: SQL
    • Labels:
      None

      Description

      As for logical plan nodes like 'Aggregate -> Project -> (Filter) -> Scan', we can push down partial aggregation processing into data sources that could aggregate their own data efficiently because Orc/Parquet could fetch the MIN/MAX value by using statistics data and some databases have efficient aggregation implementations.

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              • Assignee:
                Unassigned
                Reporter:
                maropu Takeshi Yamamuro
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                Dates

                • Created:
                  Updated: