HyukjinKwon commented on issue #22428: [SPARK-25430][SQL] Add map parameter for withColumnRenamed URL: https://github.com/apache/spark/pull/22428#issuecomment-453760380 This can be easily worked around. I think no perf issue should be there now - even if there is, I don't think that justify to add a new API. We should fix the perf issue. I'm leaving this closed unless there are other factors to consider more.
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