[GitHub] [doris] XieJiann commented on a diff in pull request #23715: [fix](Nereids) When col stats is Unknow, not expression should return the stats with selectivity of 1

[via GitHub]

XieJiann commented on code in PR #23715:
URL: https://github.com/apache/doris/pull/23715#discussion_r1312632942


##########
fe/fe-core/src/main/java/org/apache/doris/statistics/Statistics.java:
##########
@@ -131,6 +131,11 @@ public Statistics addColumnStats(Expression expression, 
ColumnStatistic columnSt
         return this;
     }
 
+    public boolean containUnknownChildStats() {
+        return expressionToColumnStats.values().stream()
+                .allMatch(e -> e.isUnKnown);

Review Comment:
   done



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