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Posted to issues@spark.apache.org by "Takeshi Yamamuro (Jira)" <ji...@apache.org> on 2019/09/06 12:37:00 UTC

[jira] [Created] (SPARK-29008) Define an individual method for each common subexpression in HashAggregateExec

Takeshi Yamamuro created SPARK-29008:
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             Summary: Define an individual method for each common subexpression in HashAggregateExec
                 Key: SPARK-29008
                 URL: https://issues.apache.org/jira/browse/SPARK-29008
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 3.0.0
         Environment: In the current master, the common subexpr elimination code in HashAggregateExec is expanded in a single method: [https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala#L397]

This method size can be too big for JIT, so we can define an individual method for each common subexpression.
            Reporter: Takeshi Yamamuro






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