HappenLee commented on code in PR #52452:
URL: https://github.com/apache/doris/pull/52452#discussion_r2173789732


##########
fe/fe-core/src/main/java/org/apache/doris/analysis/AggregateInfo.java:
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@@ -162,7 +162,7 @@ public void setPartitionExprs(List<Expr> exprs) {
 
     private static void validateGroupingExprs(List<Expr> groupingExprs) throws 
AnalysisException {
         for (Expr expr : groupingExprs) {
-            if (expr.getType().isOnlyMetricType()) {
+            if (expr.getType().isOnlyMetricType() && 
!expr.getType().isArrayTypeNestedFixedLengthType()) {

Review Comment:
   why we do not support array<String>, both starrocks and clickhouse support 
the Array<String>



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