englefly commented on code in PR #14526:
URL: https://github.com/apache/doris/pull/14526#discussion_r1033604774


##########
fe/fe-core/src/main/java/org/apache/doris/nereids/memo/GroupExpression.java:
##########
@@ -240,27 +242,31 @@ public StatsDeriveResult childStatistics(int idx) {
         return new StatsDeriveResult(child(idx).getStatistics());
     }
 
+    public void setEstOutputRowCount(long estOutputRowCount) {
+        this.estOutputRowCount = estOutputRowCount;
+    }
+
+    public long getEstOutputRowCount() {
+        return estOutputRowCount;
+    }
+
     @Override
     public String toString() {
         StringBuilder builder = new StringBuilder();
 
-        if (ownerGroup == null) {
-            builder.append("OWNER GROUP IS NULL[]");
-        } else {

Review Comment:
   OK, I will recover it



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