Hellsen83 commented on issue #23877: [SPARK-26449][PYTHON] Add transform method to DataFrame API URL: https://github.com/apache/spark/pull/23877#issuecomment-466900342 >>> from pyspark.sql.functions import col >>> df = spark.createDataFrame([(1, 1.0), (2, 2.)], ["int", "float"]) >>> def cast_all_to_int(input_df): ... return input_df.select([col(col_name).cast("int") for col_name in input_df.columns]) >>> def sort_columns_asc(input_df): ... return input_df.select(*sorted(input_df.columns)) >>> df.transform(cast_all_to_int).transform(sort_columns_asc).show() +-----+---+ |float|int| +-----+---+ | 1| 1| | 2| 2| +-----+---+ ` Thoughts?!
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