Davies Liu created SPARK-13329:
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             Summary: Considering output for statistics of logicol plan
                 Key: SPARK-13329
                 URL: https://issues.apache.org/jira/browse/SPARK-13329
             Project: Spark
          Issue Type: Improvement
          Components: SQL
            Reporter: Davies Liu
            Assignee: Davies Liu


The current implementation of statistics of UnaryNode does not considering 
output (for example, Project), we should considering it to have a better guess.



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