Github user maryannxue commented on a diff in the pull request:
https://github.com/apache/spark/pull/22519#discussion_r219624067
--- Diff: sql/core/src/test/resources/sql-tests/inputs/pivot.sql ---
@@ -287,3 +287,13 @@ PIVOT (
sum(earnings)
FOR (course, m) IN (('dotNET', map('1', 1)), ('Java', map('2', 2)))
);
+
+-- grouping columns output in the same order as input
+SELECT * FROM (
+ SELECT course, earnings, "a" as a, "z" as z, "b" as b, "y" as y, "c" as
c, "x" as x, "d" as d, "w" as w
--- End diff --
It wouldn't hurt anyway I think...
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