diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/SubExprAnalyzer.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/SubExprAnalyzer.java
index c8d6cd4e2770a8d..8badcb615125ae5 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/SubExprAnalyzer.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/SubExprAnalyzer.java
@@ -53,7 +53,6 @@
 import java.util.HashSet;
 import java.util.List;
 import java.util.Objects;
-import java.util.Optional;
 import java.util.Set;
 
 /**