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  1. Spark
  2. SPARK-9850 Adaptive execution in Spark
  3. SPARK-11471

Improve the way that we plan shuffled join

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    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Incomplete
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: SQL
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      Description

      Right now, when adaptive query execution is enabled, in most of cases, we will shuffle input tables for every join. However, once we finish our work of https://issues.apache.org/jira/browse/SPARK-10665, we will be able to have a global on the input datasets of a stage. Then, we should be able to add exchange coordinators after we get the entire physical plan (after the phase that we add Exchanges).

      I will try to fill in more information later.

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              • Assignee:
                Unassigned
                Reporter:
                yhuai Yin Huai
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                  Updated:
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