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Posted to issues@spark.apache.org by "L. C. Hsieh (Jira)" <ji...@apache.org> on 2020/09/20 02:25:00 UTC

[jira] [Created] (SPARK-32945) Avoid project combinatin when it will hurst performance

L. C. Hsieh created SPARK-32945:
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             Summary: Avoid project combinatin when it will hurst performance
                 Key: SPARK-32945
                 URL: https://issues.apache.org/jira/browse/SPARK-32945
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 3.1.0
            Reporter: L. C. Hsieh
            Assignee: L. C. Hsieh


In some cases, project combination will hurt performance. We should avoid project combination for that case.



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