Cheng Lian created SPARK-11088:
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             Summary: Optimize DataSourceStrategy.mergeWithPartitionValues
                 Key: SPARK-11088
                 URL: https://issues.apache.org/jira/browse/SPARK-11088
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 1.5.1, 1.4.1
            Reporter: Cheng Lian
            Assignee: Cheng Lian


This method is essentially a projection, but it's implemented in an pretty 
inefficient way and causes significant boxing cost.



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