Github user davies commented on the pull request:
https://github.com/apache/spark/pull/8934#issuecomment-145609363
@viirya It will be great we can fix it magically. I'm worried that the
current approach will introduce some performance regressions.
As we always have a way to workaround it using `row["count"]` (similar to
escape column names in SQL), so it's not a blocker for uses.
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