diff --git a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/ExecutableFunctions.java b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/ExecutableFunctions.java
index 8e4cdb671b4ef4..e3082b57c2f977 100644
--- a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/ExecutableFunctions.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/functions/executable/ExecutableFunctions.java
@@ -103,15 +103,6 @@ public static Expression acos(DoubleLiteral literal) {
         }
     }
 
-    @ExecFunction(name = "append_trailing_char_if_absent")
-    public static Expression appendTrailingIfCharAbsent(StringLikeLiteral literal, StringLikeLiteral chr) {
-        if (literal.getValue().length() != 1) {
-            return null;
-        }
-        return literal.getValue().endsWith(chr.getValue()) ? literal
-                : new VarcharLiteral(literal.getValue() + chr.getValue());
-    }
-
     @ExecFunction(name = "e")
     public static Expression e() { // CHECKSTYLE IGNORE THIS LINE
         return new DoubleLiteral(Math.E);