[GitHub] [doris] 924060929 commented on a diff in pull request #10240: [Refactor](nereids) Abstract interface of statistics framework for new optimizer reuse

[GitBox <gi...@apache.org>]

924060929 commented on code in PR #10240:
URL: https://github.com/apache/doris/pull/10240#discussion_r900267355


##########
fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/PlaceHolderPlan.java:
##########
@@ -81,4 +85,34 @@ public PlaceHolderPlan withChildren(List<Plan> children) {
         Preconditions.checkArgument(children.size() == 0);
         return new PlaceHolderPlan(logicalProperties);
     }
+
+    @Override
+    public List<? extends PlanStats> getChildrenStats() {
+        return null;
+    }
+
+    @Override
+    public StatsDeriveResult getStatsDeriveResult() {
+        return null;
+    }
+
+    @Override
+    public StatisticalType getNodeType() {

Review Comment:
   ```suggestion
       public StatisticalType getStatisticalType() {
   ```



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