From 30805a2d79bc268c449af515caf642ce726c4e4e Mon Sep 17 00:00:00 2001
From: jakevin <jakevingoo@gmail.com>
Date: Thu, 9 Nov 2023 19:21:04 +0800
Subject: [PATCH] [fix](Nereids): skip OptimizeGroupExpressionJob if
 groupExpression is unused (#26641)

---
 .../nereids/jobs/cascades/OptimizeGroupExpressionJob.java     | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/OptimizeGroupExpressionJob.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/OptimizeGroupExpressionJob.java
index c56b808b7d..178818e660 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/OptimizeGroupExpressionJob.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/jobs/cascades/OptimizeGroupExpressionJob.java
@@ -39,6 +39,10 @@ public class OptimizeGroupExpressionJob extends Job {
 
     @Override
     public void execute() {
+        if (groupExpression.isUnused()) {
+            return;
+        }
+
         countJobExecutionTimesOfGroupExpressions(groupExpression);
         List<Rule> implementationRules = getRuleSet().getImplementationRules();
         List<Rule> explorationRules = getExplorationRules();