Github user gatorsmile commented on the pull request: https://github.com/apache/spark/pull/9419#issuecomment-153145967 Hi, Rick, 1) This is a defect identified by me. It blocks my PR. It was introduced in the initial implementation. Thus, it is not a regression. 2) I updated my PR summary with a few query examples. 3) It is limited to ResolveGroupingAnalytics. Thus, the only affected queries are group by queries. I tried to follow the original way to make sure the coding styles are the same. Not sure if I need to put more comments into the code. Thanks, Xiao Li
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