srowen 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-467063994 Side comment: I also don't find the `df.col` syntax very usable in practice for the reasons above. It's necessary when the column name by itself is ambiguous (i.e. in a join) but `df["col"]` is more reliable there IMHO.
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