Github user chhao01 commented on the pull request:
https://github.com/apache/spark/pull/4784#issuecomment-89877867
@marmbrus I am still wondering will that be better if we define a new
logical node for `view`? As in some customer cases, they create a view first,
and then scan that view multiple times within a single SQL query, we probably
can add more rules for the Analyzer/Optimizer extension to do kind of
`caching`. What do you think?
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