Github user NarineK commented on the issue:
https://github.com/apache/spark/pull/14431
My point is the following: Let's say we have the following:
`var relationalGroupedDataset = df.groupBy("col1", "col2");`
Now, having `relationalGroupedDataset` how can I find out the grouping
columns.
there is nothing like:
`
relationalGroupedDataset.columns
relationalGroupedDataset.groupExpression
`
Is there ?
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