jifei_yang created SPARK-21664:

             Summary:  Use the column name as the file name.
                 Key: SPARK-21664
                 URL: https://issues.apache.org/jira/browse/SPARK-21664
             Project: Spark
          Issue Type: Improvement
          Components: Input/Output
    Affects Versions: 2.2.0
            Reporter: jifei_yang
             Fix For: 2.2.0

When we save the dataframe, we want to use the column name as the file name. 
PairRDDFunctions are achievable. Can Dataframe be implemented? Thank you.

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