englefly commented on code in PR #17284:
URL: https://github.com/apache/doris/pull/17284#discussion_r1127290558
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/rules/rewrite/logical/ExtractAndNormalizeWindowExpression.java:
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@@ -61,7 +65,8 @@ public Rule build() {
} else {
boolean needAggregate = bottomProjects.stream().anyMatch(expr
->
expr.anyMatch(AggregateFunction.class::isInstance));
- if (needAggregate) {
+ boolean hasAggChild = isProjectOnAggregate(project);
Review Comment:
"isProjectOnAggregate" can be removed.
If an agg-fun need to be push down and the child is AggNode, the agg-fun is
already pushed down in NormalizeAggregation Rule.
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