Description
Currently, if you want to get the name of a DateType and the DateType is a `StructField`, you get `StructF`.
http://spark.apache.org/docs/2.1.0/api/python/_modules/pyspark/sql/types.html
Currently, if you want to get the name of a DateType and the DateType is a `StructField`, you get `StructF`.
http://spark.apache.org/docs/2.1.0/api/python/_modules/pyspark/sql/types.html