diff --git a/src/gausskernel/dbmind/db4ai/executor/hyperparameter_validation.cpp b/src/gausskernel/dbmind/db4ai/executor/hyperparameter_validation.cpp
index f439d4874..9612a74bf 100644
--- a/src/gausskernel/dbmind/db4ai/executor/hyperparameter_validation.cpp
+++ b/src/gausskernel/dbmind/db4ai/executor/hyperparameter_validation.cpp
@@ -39,7 +39,7 @@ for the learning machine to improve the learning performance and effect.*/
 #include "db4ai/db4ai_api.h"
 
 //Used to add, delete, check and modify the value of the superparameter.
-
+//
 
 ///////////////////////////////////////////////////////////////////////////////