diff --git a/source/libs/function/src/functionMgt.c b/source/libs/function/src/functionMgt.c
index 5c44c27333..e75189e54a 100644
--- a/source/libs/function/src/functionMgt.c
+++ b/source/libs/function/src/functionMgt.c
@@ -394,9 +394,7 @@ static int32_t createPartialFunction(const SFunctionNode* pSrcFunc, SFunctionNod
   char name[TSDB_FUNC_NAME_LEN + TSDB_NAME_DELIMITER_LEN + sizeof(pSrcFunc) + 1] = {0};
   int32_t len = snprintf(name, sizeof(name) - 1, "%s.%p", (*pPartialFunc)->functionName, pSrcFunc);
   taosCreateMD5Hash(name, len);
-  strcpy((*pPartialFunc)->node.aliasName, name);
-  //snprintf((*pPartialFunc)->node.aliasName, sizeof((*pPartialFunc)->node.aliasName), "%s.%p",
-  //         (*pPartialFunc)->functionName, pSrcFunc);
+  strncpy((*pPartialFunc)->node.aliasName, name, TSDB_COL_NAME_LEN - 1);
   return TSDB_CODE_SUCCESS;
 }