seawinde commented on code in PR #34274:
URL: https://github.com/apache/doris/pull/34274#discussion_r1595088068
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fe/fe-core/src/main/java/org/apache/doris/nereids/rules/exploration/mv/AbstractMaterializedViewAggregateRule.java:
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@@ -284,6 +285,26 @@ protected Plan rewriteQueryByView(MatchMode matchMode,
}
// add project to guarantee group by column ref is slot reference,
// this is necessary because physical createHash will need
slotReference later
+ for (Expression expression : queryChildrenGroupBySet) {
Review Comment:
this can add if condition as following for performance
if (!queryGroupByExpressions.isEmpty() &&
queryTopPlanGroupBySet.isEmpty()) {
do your check logic
}
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