diff --git a/source/client/inc/clientSml.h b/source/client/inc/clientSml.h
index bce4ef8a0d..3dcba673bf 100644
--- a/source/client/inc/clientSml.h
+++ b/source/client/inc/clientSml.h
@@ -229,7 +229,7 @@ SSmlTableInfo*    smlBuildTableInfo(int numRows, const char* measure, int32_t me
 SSmlSTableMeta*   smlBuildSTableMeta(bool isDataFormat);
 int32_t           smlSetCTableName(SSmlTableInfo *oneTable);
 STableMeta*       smlGetMeta(SSmlHandle *info, const void* measure, int32_t measureLen);
-int32_t           is_same_child_table_telnet(const void *a, const void *b, size_t len);
+int32_t           is_same_child_table_telnet(const void *a, const void *b);
 int64_t           smlParseOpenTsdbTime(SSmlHandle *info, const char *data, int32_t len);
 int32_t           smlClearForRerun(SSmlHandle *info);
 int32_t           smlParseValue(SSmlKv *pVal, SSmlMsgBuf *msg);
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index 52a68943bd..e0d3a4d61a 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -1323,7 +1323,6 @@ int32_t smlClearForRerun(SSmlHandle *info) {
 static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char *rawLineEnd, int numLines) {
   int32_t code = TSDB_CODE_SUCCESS;
   if (info->protocol == TSDB_SML_JSON_PROTOCOL) {
-    taosHashSetEqualFp(info->childTables, is_same_child_table_telnet);
     if (lines) {
       code = smlParseJSON(info, *lines);
     } else if (rawLine) {
@@ -1368,7 +1367,6 @@ static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char
         code = smlParseInfluxString(info, tmp, tmp + len, info->lines + i);
       }
     } else if (info->protocol == TSDB_SML_TELNET_PROTOCOL) {
-      taosHashSetEqualFp(info->childTables, is_same_child_table_telnet);
       if (info->dataFormat) {
         SSmlLineInfo element = {0};
         code = smlParseTelnetString(info, (char *)tmp, (char *)tmp + len, &element);
diff --git a/source/client/src/clientSmlJson.c b/source/client/src/clientSmlJson.c
index b1a412db4e..c6acdc5b91 100644
--- a/source/client/src/clientSmlJson.c
+++ b/source/client/src/clientSmlJson.c
@@ -1010,7 +1010,7 @@ static int32_t smlParseJSONStringExt(SSmlHandle *info, cJSON *root, SSmlLineInfo
   bool needFree = info->dataFormat;
   elements->tags = cJSON_PrintUnformatted(tagsJson);
   elements->tagsLen = strlen(elements->tags);
-  if(is_same_child_table_telnet(elements, &info->preLine, 0) != 0) {
+  if(is_same_child_table_telnet(elements, &info->preLine) != 0) {
     ret = smlParseTagsFromJSON(info, tagsJson, elements);
     if (unlikely(ret)) {
       uError("OTD:0x%" PRIx64 " Unable to parse tags from JSON payload", info->id);
@@ -1180,7 +1180,7 @@ static int32_t smlParseJSONString(SSmlHandle *info, char **start, SSmlLineInfo *
   }
 
   // Parse tags
-  if(is_same_child_table_telnet(elements, &info->preLine, 0) != 0){
+  if(is_same_child_table_telnet(elements, &info->preLine) != 0){
     char tmp = *(elements->tags + elements->tagsLen);
     *(elements->tags + elements->tagsLen) = 0;
     cJSON* tagsJson = cJSON_Parse(elements->tags);
diff --git a/source/client/src/clientSmlTelnet.c b/source/client/src/clientSmlTelnet.c
index c641e766f9..2b55a5875b 100644
--- a/source/client/src/clientSmlTelnet.c
+++ b/source/client/src/clientSmlTelnet.c
@@ -20,7 +20,7 @@
 
 #include "clientSml.h"
 
-int32_t is_same_child_table_telnet(const void *a, const void *b, size_t len){
+int32_t is_same_child_table_telnet(const void *a, const void *b){
   SSmlLineInfo *t1 = (SSmlLineInfo *)a;
   SSmlLineInfo *t2 = (SSmlLineInfo *)b;
 //  uError("is_same_child_table_telnet len:%d,%d %s,%s @@@ len:%d,%d %s,%s", t1->measureLen, t2->measureLen,
@@ -70,7 +70,7 @@ static void smlParseTelnetElement(char **sql, char *sqlEnd, char **data, int32_t
 }
 
 static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SSmlLineInfo *elements, SSmlMsgBuf *msg) {
-  if(is_same_child_table_telnet(elements, &info->preLine, 0) == 0){
+  if(is_same_child_table_telnet(elements, &info->preLine) == 0){
     return TSDB_CODE_SUCCESS;
   }