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  1. Spark
  2. SPARK-12795

Whole stage codegen

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    Details

    • Type: Epic
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 2.0.0
    • Component/s: SQL
    • Labels:
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    • Epic Name:
      Whole stage codegen

      Description

      Whole stage codegen is used by some modern MPP databases to archive great performance. See http://www.vldb.org/pvldb/vol4/p539-neumann.pdf

      For Spark SQL, we can compile multiple operator into a single Java function to avoid the overhead from materialize rows and Scala iterator.

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            • Assignee:
              davies Davies Liu
              Reporter:
              davies Davies Liu

              Dates

              • Created:
                Updated:
                Resolved:

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