diff --git a/source/libs/scalar/inc/sclfunc.h b/source/libs/scalar/inc/sclfunc.h
deleted file mode 100644
index 679411e0040dc0e581c1dfcbf8882098d2695c66..0000000000000000000000000000000000000000
--- a/source/libs/scalar/inc/sclfunc.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef TDENGINE_TSCALARFUNCTION_H
-#define TDENGINE_TSCALARFUNCTION_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "function.h"
-#include "scalar.h"
-
-
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif  // TDENGINE_TSCALARFUNCTION_H
diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index af5f07751b3af7f4ad2fba42584cc78c6872c7eb..db0aa21f423083c793c77111c85bc64c4fd0c066 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -1,14 +1,9 @@
-#include "sclfunc.h"
-#include <common/tdatablock.h>
+#include "function.h"
+#include "scalar.h"
+#include "tdatablock.h"
 #include "sclInt.h"
 #include "sclvector.h"
 
-static void assignBasicParaInfo(struct SScalarParam* dst, const struct SScalarParam* src) {
-//  dst->type = src->type;
-//  dst->bytes = src->bytes;
-//  dst->num = src->num;
-}
-
 /** Math functions **/
 int32_t absFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutput) {
   SColumnInfoData *pInputData  = pInput->columnData;