[GitHub] [spark] wangyum commented on a diff in pull request #37655: [SPARK-40218][SQL] GROUPING SETS should preserve the grouping columns

[GitBox <gi...@apache.org>]

wangyum commented on code in PR #37655:
URL: https://github.com/apache/spark/pull/37655#discussion_r978354753


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sql/core/src/test/resources/sql-tests/inputs/grouping_set.sql:
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@@ -57,3 +57,6 @@ SELECT k1, k2, avg(v) FROM (VALUES (1,1,1),(2,2,2)) AS t(k1,k2,v) GROUP BY GROUP
 SELECT grouping__id, k1, k2, avg(v) FROM (VALUES (1,1,1),(2,2,2)) AS t(k1,k2,v) GROUP BY GROUPING SETS ((k1),(k1,k2),(k2,k1));
 
 SELECT grouping(k1), k1, k2, avg(v) FROM (VALUES (1,1,1),(2,2,2)) AS t(k1,k2,v) GROUP BY GROUPING SETS ((k1),(k1,k2),(k2,k1));
+
+-- grouping_id function
+SELECT grouping_id(k1, k2), avg(v) from (VALUES (1,1,1),(2,2,2)) AS t(k1,k2,v) GROUP BY k1, k2 GROUPING SETS ((k2, k1), k1);

Review Comment:
   @dongjoon-hyun Could you provide your case?



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