[GitHub] spark issue #17807: [SPARK-20532][SPARKR] Implement grouping and grouping_id

[felixcheung <gi...@git.apache.org>]

Github user felixcheung commented on the issue:

    https://github.com/apache/spark/pull/17807
  
    yea, I agree it's not ideal and I'm not in favor of dispatch hacking either.
    
    I think the latest you have is reasonable... but as you say, perhaps this isn't worthwhile to iterate that much with. Either that or what if we name this something else, like perhaps `grouping_bit` to distinguish with `grouping_id`?


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