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  1. Spark
  2. SPARK-16026 Cost-based Optimizer Framework
  3. SPARK-20124

Join reorder should keep the same order of final project attributes

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.2.0
    • 2.2.0
    • SQL
    • None

    Description

      Join reorder algorithm should keep exactly the same order of output attributes in the top project.
      For example, if user want to select a, b, c, after reordering, we should output a, b, c in the same order as specified by user, instead of b, a, c or other orders.

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            ZenWzh Zhenhua Wang
            ZenWzh Zhenhua Wang
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              Created:
              Updated:
              Resolved: