diff --git a/source/client/inc/clientSml.h b/source/client/inc/clientSml.h
index 26c0a38c8a..9ae28dd55e 100644
--- a/source/client/inc/clientSml.h
+++ b/source/client/inc/clientSml.h
@@ -217,11 +217,9 @@ void          smlDestroyInfo(SSmlHandle *info);
 int           smlJsonParseObjFirst(char **start, SSmlLineInfo *element, int8_t *offset);
 int           smlJsonParseObj(char **start, SSmlLineInfo *element, int8_t *offset);
 bool          smlParseNumberOld(SSmlKv *kvVal, SSmlMsgBuf *msg);
-bool          smlDoubleToInt64OverFlow(double num);
 int32_t       smlBuildInvalidDataMsg(SSmlMsgBuf *pBuf, const char *msg1, const char *msg2);
 bool          smlParseNumber(SSmlKv *kvVal, SSmlMsgBuf *msg);
 int64_t       smlGetTimeValue(const char *value, int32_t len, uint8_t fromPrecision, uint8_t toPrecision);
-int8_t        smlGetTsTypeByLen(int32_t len);
 SSmlTableInfo*    smlBuildTableInfo(int numRows, const char* measure, int32_t measureLen);
 SSmlSTableMeta*   smlBuildSTableMeta(bool isDataFormat);
 int32_t           smlSetCTableName(SSmlTableInfo *oneTable);
@@ -238,7 +236,6 @@ void    freeSSmlKv(void* data);
 int32_t smlParseInfluxString(SSmlHandle *info, char *sql, char *sqlEnd, SSmlLineInfo *elements);
 int32_t smlParseTelnetString(SSmlHandle *info, char *sql, char *sqlEnd, SSmlLineInfo *elements);
 int32_t smlParseJSON(SSmlHandle *info, char *payload);
-void    smlStrReplace(char* src, int32_t len);
 
 SSmlSTableMeta* smlBuildSuperTableInfo(SSmlHandle *info, SSmlLineInfo *currElement);
 bool            isSmlTagAligned(SSmlHandle *info, int cnt, SSmlKv *kv);
@@ -250,6 +247,30 @@ void            smlBuildTsKv(SSmlKv *kv, int64_t ts);
 int32_t         smlParseEndTelnetJson(SSmlHandle *info, SSmlLineInfo *elements, SSmlKv *kvTs, SSmlKv *kv);
 int32_t         smlParseEndLine(SSmlHandle *info, SSmlLineInfo *elements, SSmlKv *kvTs);
 
+static inline bool smlDoubleToInt64OverFlow(double num) {
+  if (num >= (double)INT64_MAX || num <= (double)INT64_MIN) return true;
+  return false;
+}
+
+static inline void smlStrReplace(char* src, int32_t len){
+  if (!tsSmlDot2Underline) return;
+  for(int i = 0; i < len; i++){
+    if(src[i] == '.'){
+      src[i] = '_';
+    }
+  }
+}
+
+static inline int8_t smlGetTsTypeByLen(int32_t len) {
+  if (len == TSDB_TIME_PRECISION_SEC_DIGITS) {
+    return TSDB_TIME_PRECISION_SECONDS;
+  } else if (len == TSDB_TIME_PRECISION_MILLI_DIGITS) {
+    return TSDB_TIME_PRECISION_MILLI;
+  } else {
+    return -1;
+  }
+}
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index a066bd8014..67b23792ad 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -127,19 +127,6 @@ static int32_t smlCheckAuth(SSmlHandle *info,  SRequestConnInfo* conn, const cha
   return (code == TSDB_CODE_SUCCESS) ? (authRes.pass[AUTH_RES_BASIC] ? TSDB_CODE_SUCCESS : TSDB_CODE_PAR_PERMISSION_DENIED) : code;
 
 }
-inline bool smlDoubleToInt64OverFlow(double num) {
-  if (num >= (double)INT64_MAX || num <= (double)INT64_MIN) return true;
-  return false;
-}
-
-inline void smlStrReplace(char* src, int32_t len){
-  if (!tsSmlDot2Underline) return;
-  for(int i = 0; i < len; i++){
-    if(src[i] == '.'){
-      src[i] = '_';
-    }
-  }
-}
 
 int32_t smlBuildInvalidDataMsg(SSmlMsgBuf *pBuf, const char *msg1, const char *msg2) {
   if (pBuf->buf) {
@@ -173,16 +160,6 @@ int64_t smlGetTimeValue(const char *value, int32_t len, uint8_t fromPrecision, u
   return convertTimePrecision(tsInt64, fromPrecision, toPrecision);
 }
 
-inline int8_t smlGetTsTypeByLen(int32_t len) {
-  if (len == TSDB_TIME_PRECISION_SEC_DIGITS) {
-    return TSDB_TIME_PRECISION_SECONDS;
-  } else if (len == TSDB_TIME_PRECISION_MILLI_DIGITS) {
-    return TSDB_TIME_PRECISION_MILLI;
-  } else {
-    return -1;
-  }
-}
-
 SSmlTableInfo *smlBuildTableInfo(int numRows, const char *measure, int32_t measureLen) {
   SSmlTableInfo *tag = (SSmlTableInfo *)taosMemoryCalloc(sizeof(SSmlTableInfo), 1);
   if (!tag) {