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Posted to issues@spark.apache.org by "Ke Jia (Jira)" <ji...@apache.org> on 2019/10/22 06:52:00 UTC

[jira] [Created] (SPARK-29544) Optimize skewed join at runtime with new Adaptive Execution

Ke Jia created SPARK-29544:
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             Summary: Optimize skewed join at runtime with new Adaptive Execution
                 Key: SPARK-29544
                 URL: https://issues.apache.org/jira/browse/SPARK-29544
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.0.0
            Reporter: Ke Jia


Implement a rule in the new adaptive execution framework introduced in [SPARK-23128|https://issues.apache.org/jira/browse/SPARK-23128]. This rule is used to handle the skew join optimization based on the runtime statistics (data size and row count).



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