maropu commented on a change in pull request #30212:
URL: https://github.com/apache/spark/pull/30212#discussion_r531393607
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File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -587,13 +587,24 @@ fromClause
;
aggregationClause
- : GROUP BY groupingExpressions+=expression (','
groupingExpressions+=expression)* (
+ : GROUP BY groupingExpressionWithGroupingAnalytics+=groupByClause
+ (',' groupingExpressionWithGroupingAnalytics+=groupByClause)*
+ | GROUP BY groupingExpressions+=expression (','
groupingExpressions+=expression)* (
WITH kind=ROLLUP
| WITH kind=CUBE
| kind=GROUPING SETS '(' groupingSet (',' groupingSet)* ')')?
Review comment:
> since we add GROUPING SET in groupingExpressionWithGroupingAnalytics
so we support group by a, b, grouping sets(a, (a, b))
Could you add tests?
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