mgaido91 commented on issue #23285: [SPARK-26224][SQL] Avoid creating many project on subsequent calls to withColumn URL: https://github.com/apache/spark/pull/23285#issuecomment-446893251 @HeartSaVioR I'd rather say that `withColumns` can be easily done as well using select. So I am not sure it is so useful to expose it. There is already a "workaround" for this problem, this PR just meant to avoid that issue since many people use it.
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