[GitHub] [spark] maropu commented on a change in pull request #30144: [SPARK-33229][SQL]Support GROUP BY use Separate columns and CUBE/ROLLUP

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

maropu commented on a change in pull request #30144:
URL: https://github.com/apache/spark/pull/30144#discussion_r511755095



##########
File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/grouping.scala
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@@ -151,3 +151,26 @@ object GroupingID {
     if (SQLConf.get.integerGroupingIdEnabled) IntegerType else LongType
   }
 }
+
+object MixedExprsWithCube {

Review comment:
       If you define extractors for the mixed case, I think we need to make them more general for extracting more complicated cases, mix of cube/rollup, mix of rollup/grouping sets, ...




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