Cheng Hao 42c592adb3 [SPARK-7320] [SQL] Add Cube / Rollup for dataframe ... This is a follow up for #6257, which broke the maven test. Add cube & rollup for DataFrame For example: ```scala testData.rollup($"a" + $"b", $"b").agg(sum($"a" - $"b")) testData.cube($"a" + $"b", $"b").agg(sum($"a" - $"b")) ``` Author: Cheng Hao <hao.cheng@intel.com> Closes #6304 from chenghao-intel/rollup and squashes the following commits: 04bb1de [Cheng Hao] move the table register/unregister into beforeAll/afterAll a6069f1 [Cheng Hao] cancel the implicit keyword ced4b8f [Cheng Hao] remove the unnecessary code changes 9959dfa [Cheng Hao] update the code as comments e1d88aa [Cheng Hao] update the code as suggested 03bc3d9 [Cheng Hao] Remove the CubedData & RollupedData 5fd62d0 [Cheng Hao] hiden the CubedData & RollupedData 5ffb196 [Cheng Hao] Add Cube / Rollup for dataframe		2015-05-20 19:58:22 -07:00
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main	[SPARK-7320] [SQL] Add Cube / Rollup for dataframe	2015-05-20 19:58:22 -07:00
test	[SPARK-7687] [SQL] DataFrame.describe() should cast all aggregates to String	2015-05-18 21:53:44 -07:00