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by neximo64 1196 days ago
Not that great since its nondeterministic. Maybe a better solution is to use a columnar database.
2 comments

Certainly, but the use case mentioned here is not related to a performance issue. It's more about syntactic sugar when a user writes SQL in interactive mode to explore data.
How would a columnar DB help?

BTW I believe all the big RDBMs now support columnar tables.