HyukjinKwon commented on issue #23882: [SPARK-26979][PySpark][WIP] Add missing column name support for some SQL functions URL: https://github.com/apache/spark/pull/23882#issuecomment-466788922 I actually think we should consider both together while we're here. Some Scala APIs have string versions and most of Python ones have string versions. I already saw many requests about this across APIs. Also, if we're going to change this in Python alone, let's make very sure that all column reference can be done in string, for instance, in `dataframe.py` too. I'm pretty sure there are holes here and there.
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