Github user viirya commented on a diff in the pull request: https://github.com/apache/spark/pull/17371#discussion_r107096074 --- Diff: python/pyspark/sql/functions.py --- @@ -1163,7 +1163,10 @@ def check_string_field(field, fieldName): raise TypeError("%s should be provided as a string" % fieldName) sc = SparkContext._active_spark_context - time_col = _to_java_column(timeColumn) + if isinstance(timeColumn, Column): --- End diff -- After this change, you can't pass in a `Column`. But it is supported for now.
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