Github user chenghao-intel commented on the pull request:
https://github.com/apache/spark/pull/4904#issuecomment-77323036
Can you also try the test case:
https://github.com/apache/spark/pull/4892/files#diff-5a2e7f03d14856c8769fd3ddea8742bdR55
The root cause of the failure also due to the incorrect alias, see:
https://github.com/apache/spark/pull/4892/files#diff-27c76f96a7b2733ecfd6f46a1716e153R206
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