englefly commented on code in PR #13375:
URL: https://github.com/apache/doris/pull/13375#discussion_r1003962955
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fe/fe-core/src/main/java/org/apache/doris/nereids/memo/GroupExpression.java:
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@@ -39,6 +40,8 @@
* Representation for group expression in cascades optimizer.
*/
public class GroupExpression {
+ private double cost = 0.0;
+ private CostEstimate costEstimate = null;
Review Comment:
this is used for memo debug
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