cloud-fan commented on pull request #30144:
URL: https://github.com/apache/spark/pull/30144#issuecomment-810866475
Please update the SQL doc accordingly as well.
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cloud-fan commented on pull request #30144:
URL: https://github.com/apache/spark/pull/30144#issuecomment-810864610
Can we enrich the PR description a bit more? Now we support `group by a,
cube(b, c)`, but what's its semantic? Does it have a equivalent representation
using `GROUPING SETS`?
