Github user viirya commented on the issue: https://github.com/apache/spark/pull/14780 @cloud-fan I have a discussion with @hvanhovell at https://github.com/apache/spark/pull/14729#issuecomment-241453606. I think the main benefit is the CBO can work on all tables. If we can't analyze on a temp view, the query plan involving temp views will not be applied on CBO.
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