Github user gatorsmile commented on the pull request:
https://github.com/apache/spark/pull/9216#issuecomment-150395202
My code change expose a new defect:
Both rollup and cube are not working correctly no matter whether the
build include my changes or not.
Without my changes, the outputs of rollup query are
[3,2,-1]
[3,null,null]
[6,4,-2]
[6,null,null]
[null,null,null]
However, the expected results should be like
[3,2,-1]
[3,null,-1]
[6,4,-2]
[6,null,-2]
[null,null,-3]
I need more time to find the root cause why rollup and cube do not work.
The current test cases in HiveDataFrameAnalyticsSuite hide the errors because
both the results of both SQL and DataFrame are wrong, although the results are
the same.
Thanks,
Xiao Li
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