spark git commit: [SPARK-11980][SPARK-10621][SQL] Fix json_tuple and add test cases for

Repository: spark Updated Branches: refs/heads/master d1930ec01 -> 068b6438d [SPARK-11980][SPARK-10621][SQL] Fix json_tuple and add test cases for Added Python test cases for the function `isnan`, `isnull`, `nanvl` and `json_tuple`. Fixed a bug in the function `json_tuple` rxin , could you

spark git commit: [SPARK-11980][SPARK-10621][SQL] Fix json_tuple and add test cases for

Repository: spark Updated Branches: refs/heads/branch-1.6 d40bf9ad8 -> 7e7f2627f [SPARK-11980][SPARK-10621][SQL] Fix json_tuple and add test cases for Added Python test cases for the function `isnan`, `isnull`, `nanvl` and `json_tuple`. Fixed a bug in the function `json_tuple` rxin , could