xzj7019 commented on code in PR #40698:
URL: https://github.com/apache/doris/pull/40698#discussion_r1766076990
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/stats/ExpressionEstimation.java:
##########
@@ -430,7 +457,14 @@ public ColumnStatistic visitBoundFunction(BoundFunction
boundFunction, Statistic
@Override
public ColumnStatistic visitAggregateExpression(AggregateExpression
aggregateExpression,
Statistics context) {
- return aggregateExpression.child().accept(this, context);
+ ColumnStatistic columnStat = aggregateExpression.child().accept(this,
context);
+ if (columnStat.isUnKnown) {
+ return ColumnStatistic.UNKNOWN;
+ }
+ return new ColumnStatisticBuilder(columnStat)
+ .setMinExpr(null).setMinValue(Double.NEGATIVE_INFINITY)
Review Comment:
will remain the original to make partial agg happy.
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