Github user xwu0226 commented on the pull request:
https://github.com/apache/spark/pull/9326#issuecomment-152073153
@yhuai Thanks so much for your comments and suggestions!
I have thought through your suggestions and override `cleanArgs` field in
`LogicalRelation`, that returns the `BaseRelation` (in this case,
`ParquetRelation`) without the `expectedOutputAttributes`.. I removed the
original fix from `Subquery` and commited the change.
Let me know what you think. Thank you again!
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