gengliangwang commented on code in PR #48529:
URL: https://github.com/apache/spark/pull/48529#discussion_r1811583727
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sql/api/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBaseParser.g4:
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@@ -765,7 +765,7 @@ temporalClause
aggregationClause
: GROUP BY groupingExpressionsWithGroupingAnalytics+=groupByClause
(COMMA groupingExpressionsWithGroupingAnalytics+=groupByClause)*
- | GROUP BY groupingExpressions+=expression (COMMA
groupingExpressions+=expression)* (
+ | GROUP BY groupingExpressions+=namedExpression (COMMA
groupingExpressions+=namedExpression)* (
Review Comment:
@dtenedor could you explain why we need to support alias after the `GROUP
BY` clause? It seems that the following SQL will still be confusing:
```
| AGGREGATE max(i) GROUP BY j as i
```
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