Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/14044
Thank you for review, @liancheng .
I'm sure that the performance of Analyzer need to be improved. But, in any
cases, the cost of analyzer cannot be zero.
We should skip the redundant analysis. IMO, that idea sounds orthogonal to
this PR. So, I asked @hvanhovell to make a PR for that.
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