Yin Huai created SPARK-10100:
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             Summary: AggregateFunction2's Max is slower than 
AggregateExpression1's MaxFunction
                 Key: SPARK-10100
                 URL: https://issues.apache.org/jira/browse/SPARK-10100
             Project: Spark
          Issue Type: Sub-task
          Components: SQL
    Affects Versions: 1.5.0
            Reporter: Yin Huai


Looks like Max (probably Min) implemented based on AggregateFunction2 is slower 
than the old MaxFunction.



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