Davies Liu created SPARK-12795:
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             Summary: Compile multiple operator into a single Java function to 
avoid the overhead from materialize rows and Scala iterator
                 Key: SPARK-12795
                 URL: https://issues.apache.org/jira/browse/SPARK-12795
             Project: Spark
          Issue Type: Epic
            Reporter: Davies Liu
            Assignee: Davies Liu


Compile multiple operator into a single Java function to avoid the overhead 
from materialize rows and Scala iterator



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