diff --git a/source/client/inc/clientSml.h b/source/client/inc/clientSml.h
index 311260e3fb1eec8b6a1118bb88cf3180ba5e68de..3dcba673bfa843823561e565ddbe58586d82b774 100644
--- a/source/client/inc/clientSml.h
+++ b/source/client/inc/clientSml.h
@@ -99,6 +99,7 @@ typedef struct {
   char *tags;
   char *cols;
   char *timestamp;
+  char *measureTag;
 
   int32_t measureLen;
   int32_t measureTagsLen;
@@ -114,7 +115,7 @@ typedef struct {
   int32_t     sTableNameLen;
   char        childTableName[TSDB_TABLE_NAME_LEN];
   uint64_t    uid;
-  void       *key;        // for openTsdb
+//  void       *key;        // for openTsdb
 
   SArray *tags;
 
@@ -166,8 +167,8 @@ typedef struct {
   int32_t         ttl;
   int32_t         uid; // used for automatic create child table
 
-  NodeList *childTables;
-  NodeList *superTables;
+  SHashObj *childTables;
+  SHashObj *superTables;
   SHashObj *pVgHash;
 
   STscObj     *taos;
diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index e21fcd64b8bf33bfa474e44d618813b12bc5f25d..db8cdccbf64728e6470b7c79be25edf7d8b4fd8b 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -759,13 +759,13 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
   conn.requestObjRefId = info->pRequest->self;
   conn.mgmtEps = getEpSet_s(&info->taos->pAppInfo->mgmtEp);
 
-  NodeList *tmp = info->superTables;
+  SSmlSTableMeta **tmp = (SSmlSTableMeta **)taosHashIterate(info->superTables, NULL);
   while (tmp) {
-    SSmlSTableMeta *sTableData = (SSmlSTableMeta *)tmp->data.value;
+    SSmlSTableMeta *sTableData = *tmp;
     bool            needCheckMeta = false;  // for multi thread
 
-    size_t      superTableLen = (size_t)tmp->data.keyLen;
-    const void *superTable = tmp->data.key;
+    size_t superTableLen = 0;
+    void  *superTable = taosHashGetKey(tmp, &superTableLen);
     memset(pName.tname, 0, TSDB_TABLE_NAME_LEN);
     memcpy(pName.tname, superTable, superTableLen);
 
@@ -914,7 +914,7 @@ static int32_t smlModifyDBSchemas(SSmlHandle *info) {
 
     sTableData->tableMeta = pTableMeta;
 
-    tmp = tmp->next;
+    tmp = (SSmlSTableMeta **)taosHashIterate(info->superTables, tmp);
   }
   return 0;
 
@@ -1017,11 +1017,11 @@ void smlDestroyTableInfo(SSmlHandle *info, SSmlTableInfo *tag) {
     taosHashCleanup(kvHash);
   }
 
-  if (info->parseJsonByLib) {
-    SSmlLineInfo *key = (SSmlLineInfo *)(tag->key);
-    if (key != NULL) taosMemoryFree(key->tags);
-  }
-  taosMemoryFree(tag->key);
+//  if (info->parseJsonByLib) {
+//    SSmlLineInfo *key = (SSmlLineInfo *)(tag->key);
+//    if (key != NULL) taosMemoryFree(key->tags);
+//  }
+//  taosMemoryFree(tag->key);
   taosArrayDestroy(tag->cols);
   taosArrayDestroy(tag->tags);
   taosMemoryFree(tag);
@@ -1042,29 +1042,23 @@ void smlDestroyInfo(SSmlHandle *info) {
   qDestroyQuery(info->pQuery);
 
   // destroy info->childTables
-  NodeList *tmp = info->childTables;
-  while (tmp) {
-    if (tmp->data.used) {
-      smlDestroyTableInfo(info, (SSmlTableInfo *)tmp->data.value);
-    }
-    NodeList *t = tmp->next;
-    taosMemoryFree(tmp);
-    tmp = t;
+  SSmlTableInfo **oneTable = (SSmlTableInfo **)taosHashIterate(info->childTables, NULL);
+  while (oneTable) {
+    smlDestroyTableInfo(info, *oneTable);
+    oneTable = (SSmlTableInfo **)taosHashIterate(info->childTables, oneTable);
   }
 
   // destroy info->superTables
-  tmp = info->superTables;
-  while (tmp) {
-    if (tmp->data.used) {
-      smlDestroySTableMeta((SSmlSTableMeta *)tmp->data.value);
-    }
-    NodeList *t = tmp->next;
-    taosMemoryFree(tmp);
-    tmp = t;
+  SSmlSTableMeta **oneSTable = (SSmlSTableMeta **)taosHashIterate(info->superTables, NULL);
+  while (oneSTable) {
+    smlDestroySTableMeta(*oneSTable);
+    oneSTable = (SSmlSTableMeta **)taosHashIterate(info->superTables, oneSTable);
   }
 
   // destroy info->pVgHash
   taosHashCleanup(info->pVgHash);
+  taosHashCleanup(info->childTables);
+  taosHashCleanup(info->superTables);
 
   for (int i = 0; i < taosArrayGetSize(info->tagJsonArray); i++) {
     cJSON *tags = (cJSON *)taosArrayGetP(info->tagJsonArray, i);
@@ -1088,6 +1082,8 @@ void smlDestroyInfo(SSmlHandle *info) {
       if (info->parseJsonByLib) {
         taosMemoryFree(info->lines[i].tags);
       }
+      if(info->lines[i].measureTagsLen != 0)
+        taosMemoryFree(info->lines[i].measureTag);
     }
     taosMemoryFree(info->lines);
   }
@@ -1112,6 +1108,9 @@ SSmlHandle *smlBuildSmlInfo(TAOS *taos) {
   }
 
   info->pVgHash = taosHashInit(16, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), true, HASH_NO_LOCK);
+  info->childTables = taosHashInit(16, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
+  info->superTables = taosHashInit(16, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
+
   info->id = smlGenId();
   info->pQuery = smlInitHandle();
   info->dataFormat = true;
@@ -1122,7 +1121,7 @@ SSmlHandle *smlBuildSmlInfo(TAOS *taos) {
   info->maxTagKVs = taosArrayInit(8, sizeof(SSmlKv));
   info->preLineColKV = taosArrayInit(8, sizeof(SSmlKv));
 
-  if (NULL == info->pVgHash) {
+  if (NULL == info->pVgHash || NULL == info->childTables || NULL == info->superTables) {
     uError("create SSmlHandle failed");
     goto cleanup;
   }
@@ -1156,11 +1155,11 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
     SSmlLineInfo  *elements = info->lines + i;
     SSmlTableInfo *tinfo = NULL;
     if (info->protocol == TSDB_SML_LINE_PROTOCOL) {
-      tinfo = (SSmlTableInfo *)nodeListGet(info->childTables, elements->measure, elements->measureTagsLen, NULL);
+      tinfo = *(SSmlTableInfo **)taosHashGet(info->childTables, elements->measure, elements->measureTagsLen);
     } else if (info->protocol == TSDB_SML_TELNET_PROTOCOL) {
-      tinfo = (SSmlTableInfo *)nodeListGet(info->childTables, elements, POINTER_BYTES, is_same_child_table_telnet);
+      tinfo = *(SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag, elements->measureLen + elements->tagsLen);
     } else {
-      tinfo = (SSmlTableInfo *)nodeListGet(info->childTables, elements, POINTER_BYTES, is_same_child_table_telnet);
+      tinfo = *(SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag, elements->measureLen + elements->tagsLen);
     }
 
     if (tinfo == NULL) {
@@ -1184,12 +1183,12 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
       return ret;
     }
 
-    SSmlSTableMeta *tableMeta =
-        (SSmlSTableMeta *)nodeListGet(info->superTables, elements->measure, elements->measureLen, NULL);
+    SSmlSTableMeta **tableMeta =
+        (SSmlSTableMeta **)taosHashGet(info->superTables, elements->measure, elements->measureLen);
     if (tableMeta) {  // update meta
-      ret = smlUpdateMeta(tableMeta->colHash, tableMeta->cols, elements->colArray, false, &info->msgBuf);
+      ret = smlUpdateMeta((*tableMeta)->colHash, (*tableMeta)->cols, elements->colArray, false, &info->msgBuf);
       if (ret == TSDB_CODE_SUCCESS) {
-        ret = smlUpdateMeta(tableMeta->tagHash, tableMeta->tags, tinfo->tags, true, &info->msgBuf);
+        ret = smlUpdateMeta((*tableMeta)->tagHash, (*tableMeta)->tags, tinfo->tags, true, &info->msgBuf);
       }
       if (ret != TSDB_CODE_SUCCESS) {
         uError("SML:0x%" PRIx64 " smlUpdateMeta failed", info->id);
@@ -1205,7 +1204,7 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
       SSmlSTableMeta *meta = smlBuildSTableMeta(info->dataFormat);
       smlInsertMeta(meta->tagHash, meta->tags, tinfo->tags);
       smlInsertMeta(meta->colHash, meta->cols, elements->colArray);
-      nodeListSet(&info->superTables, elements->measure, elements->measureLen, meta, NULL);
+      taosHashPut(info->superTables, elements->measure, elements->measureLen, &meta, POINTER_BYTES);
     }
   }
 
@@ -1215,9 +1214,9 @@ static int32_t smlParseLineBottom(SSmlHandle *info) {
 static int32_t smlInsertData(SSmlHandle *info) {
   int32_t code = TSDB_CODE_SUCCESS;
 
-  NodeList *tmp = info->childTables;
-  while (tmp) {
-    SSmlTableInfo *tableData = (SSmlTableInfo *)tmp->data.value;
+  SSmlTableInfo **oneTable = (SSmlTableInfo **)taosHashIterate(info->childTables, NULL);
+  while (oneTable) {
+    SSmlTableInfo *tableData = *oneTable;
 
     SName pName = {TSDB_TABLE_NAME_T, info->taos->acctId, {0}, {0}};
     tstrncpy(pName.dbname, info->pRequest->pDb, sizeof(pName.dbname));
@@ -1237,25 +1236,25 @@ static int32_t smlInsertData(SSmlHandle *info) {
     }
     taosHashPut(info->pVgHash, (const char *)&vg.vgId, sizeof(vg.vgId), (char *)&vg, sizeof(vg));
 
-    SSmlSTableMeta *pMeta =
-        (SSmlSTableMeta *)nodeListGet(info->superTables, tableData->sTableName, tableData->sTableNameLen, NULL);
-    if (unlikely(NULL == pMeta || NULL == pMeta->tableMeta)) {
+    SSmlSTableMeta **pMeta =
+        (SSmlSTableMeta **)taosHashGet(info->superTables, tableData->sTableName, tableData->sTableNameLen);
+    if (unlikely(NULL == pMeta || NULL == (*pMeta)->tableMeta)) {
       uError("SML:0x%" PRIx64 " NULL == pMeta. table name: %s", info->id, tableData->childTableName);
       return TSDB_CODE_SML_INTERNAL_ERROR;
     }
 
     // use tablemeta of stable to save vgid and uid of child table
-    pMeta->tableMeta->vgId = vg.vgId;
-    pMeta->tableMeta->uid = tableData->uid;  // one table merge data block together according uid
+    (*pMeta)->tableMeta->vgId = vg.vgId;
+    (*pMeta)->tableMeta->uid = tableData->uid;  // one table merge data block together according uid
 
-    code = smlBindData(info->pQuery, info->dataFormat, tableData->tags, pMeta->cols, tableData->cols, pMeta->tableMeta,
+    code = smlBindData(info->pQuery, info->dataFormat, tableData->tags, (*pMeta)->cols, tableData->cols, (*pMeta)->tableMeta,
                        tableData->childTableName, tableData->sTableName, tableData->sTableNameLen, info->ttl,
                        info->msgBuf.buf, info->msgBuf.len);
     if (code != TSDB_CODE_SUCCESS) {
       uError("SML:0x%" PRIx64 " smlBindData failed", info->id);
       return code;
     }
-    tmp = tmp->next;
+    oneTable = (SSmlTableInfo **)taosHashIterate(info->childTables, oneTable);
   }
 
   code = smlBuildOutput(info->pQuery, info->pVgHash);
@@ -1288,25 +1287,22 @@ static void smlPrintStatisticInfo(SSmlHandle *info) {
 int32_t smlClearForRerun(SSmlHandle *info) {
   info->reRun = false;
   // clear info->childTables
-  NodeList *pList = info->childTables;
-  while (pList) {
-    if (pList->data.used) {
-      smlDestroyTableInfo(info, (SSmlTableInfo *)pList->data.value);
-      pList->data.used = false;
-    }
-    pList = pList->next;
+  SSmlTableInfo **oneTable = (SSmlTableInfo **)taosHashIterate(info->childTables, NULL);
+  while (oneTable) {
+    smlDestroyTableInfo(info, *oneTable);
+    oneTable = (SSmlTableInfo **)taosHashIterate(info->childTables, oneTable);
   }
 
   // clear info->superTables
-  pList = info->superTables;
-  while (pList) {
-    if (pList->data.used) {
-      smlDestroySTableMeta((SSmlSTableMeta *)pList->data.value);
-      pList->data.used = false;
-    }
-    pList = pList->next;
+  SSmlSTableMeta **oneSTable = (SSmlSTableMeta **)taosHashIterate(info->superTables, NULL);
+  while (oneSTable) {
+    smlDestroySTableMeta(*oneSTable);
+    oneSTable = (SSmlSTableMeta **)taosHashIterate(info->superTables, oneSTable);
   }
 
+  taosHashClear(info->childTables);
+  taosHashClear(info->superTables);
+
   if (!info->dataFormat) {
     if (unlikely(info->lines != NULL)) {
       uError("SML:0x%" PRIx64 " info->lines != NULL", info->id);
@@ -1375,6 +1371,7 @@ static int32_t smlParseLine(SSmlHandle *info, char *lines[], char *rawLine, char
       if (info->dataFormat) {
         SSmlLineInfo element = {0};
         code = smlParseTelnetString(info, (char *)tmp, (char *)tmp + len, &element);
+        if(element.measureTagsLen != 0) taosMemoryFree(element.measureTag);
       } else {
         code = smlParseTelnetString(info, (char *)tmp, (char *)tmp + len, info->lines + i);
       }
@@ -1418,15 +1415,15 @@ static int smlProcess(SSmlHandle *info, char *lines[], char *rawLine, char *rawL
   }
 
   info->cost.lineNum = info->lineNum;
-  info->cost.numOfSTables = nodeListSize(info->superTables);
-  info->cost.numOfCTables = nodeListSize(info->childTables);
+  info->cost.numOfSTables = taosHashGetSize(info->superTables);
+  info->cost.numOfCTables = taosHashGetSize(info->childTables);
 
   info->cost.schemaTime = taosGetTimestampUs();
 
   do {
     code = smlModifyDBSchemas(info);
     if (code == 0) break;
-  } while (retryNum++ < nodeListSize(info->superTables) * MAX_RETRY_TIMES);
+  } while (retryNum++ < taosHashGetSize(info->superTables) * MAX_RETRY_TIMES);
 
   if (code != 0) {
     uError("SML:0x%" PRIx64 " smlModifyDBSchemas error : %s", info->id, tstrerror(code));
@@ -1504,7 +1501,7 @@ TAOS_RES *taos_schemaless_insert_inner(TAOS *taos, char *lines[], char *rawLine,
   request->code = code;
   info->cost.endTime = taosGetTimestampUs();
   info->cost.code = code;
-  //  smlPrintStatisticInfo(info);
+  smlPrintStatisticInfo(info);
 
 end:
   smlDestroyInfo(info);
diff --git a/source/client/src/clientSmlJson.c b/source/client/src/clientSmlJson.c
index 228f8d40f3a810e820aae2b589e78b0e61941f08..a437fd238c11471ed465b2d7ab4049a0f284e5a8 100644
--- a/source/client/src/clientSmlJson.c
+++ b/source/client/src/clientSmlJson.c
@@ -694,9 +694,9 @@ static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *tags, SSmlLineInfo
   SArray *superKV = NULL;
   if(info->dataFormat){
     if(unlikely(!isSameMeasure)){
-      SSmlSTableMeta *sMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, elements->measure, elements->measureLen, NULL);
-
-      if(unlikely(sMeta == NULL)){
+      SSmlSTableMeta **tmp = (SSmlSTableMeta **)taosHashGet(info->superTables, elements->measure, elements->measureLen);
+      SSmlSTableMeta *sMeta = NULL;
+      if(unlikely(tmp == NULL)){
         STableMeta * pTableMeta = smlGetMeta(info, elements->measure, elements->measureLen);
         if(pTableMeta == NULL){
           info->dataFormat = false;
@@ -705,10 +705,11 @@ static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *tags, SSmlLineInfo
         }
         sMeta = smlBuildSTableMeta(info->dataFormat);
         sMeta->tableMeta = pTableMeta;
-        nodeListSet(&info->superTables, elements->measure, elements->measureLen, sMeta, NULL);
+        taosHashPut(info->superTables, elements->measure, elements->measureLen, &sMeta, POINTER_BYTES);
+        tmp = &sMeta;
       }
-      info->currSTableMeta = sMeta->tableMeta;
-      superKV = sMeta->tags;
+      info->currSTableMeta = (*tmp)->tableMeta;
+      superKV = (*tmp)->tags;
 
       if(unlikely(taosArrayGetSize(superKV) == 0)){
         isSuperKVInit = false;
@@ -761,13 +762,13 @@ static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *tags, SSmlLineInfo
         SSmlKv *maxKV = (SSmlKv *)taosArrayGet(maxKVs, cnt);
         if(unlikely(kv.length > maxKV->length)){
           maxKV->length = kv.length;
-          SSmlSTableMeta *tableMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, elements->measure, elements->measureLen, NULL);
+          SSmlSTableMeta **tableMeta = (SSmlSTableMeta **)taosHashGet(info->superTables, elements->measure, elements->measureLen);
           if(unlikely(NULL == tableMeta)){
             uError("SML:0x%" PRIx64 " NULL == tableMeta", info->id);
             return TSDB_CODE_SML_INTERNAL_ERROR;
           }
 
-          SSmlKv *oldKV = (SSmlKv *)taosArrayGet(tableMeta->tags, cnt);
+          SSmlKv *oldKV = (SSmlKv *)taosArrayGet((*tableMeta)->tags, cnt);
           oldKV->length = kv.length;
           info->needModifySchema = true;
         }
@@ -808,8 +809,14 @@ static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *tags, SSmlLineInfo
     cnt++;
   }
 
-  SSmlTableInfo *tinfo = (SSmlTableInfo *)nodeListGet(info->childTables, elements, POINTER_BYTES, is_same_child_table_telnet);
-  if (unlikely(tinfo == NULL)) {
+  elements->measureTag = (char*)taosMemoryMalloc(elements->measureLen + elements->tagsLen);
+  memcpy(elements->measureTag, elements->measure, elements->measureLen);
+  memcpy(elements->measureTag + elements->measureLen, elements->tags, elements->tagsLen);
+  elements->measureTagsLen = elements->measureLen + elements->tagsLen;
+
+  SSmlTableInfo **tmp = (SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag, elements->measureLen + elements->tagsLen);
+  SSmlTableInfo *tinfo = NULL;
+  if (unlikely(tmp == NULL)) {
     tinfo = smlBuildTableInfo(1, elements->measure, elements->measureLen);
     if (unlikely(!tinfo)) {
       return TSDB_CODE_OUT_OF_MEMORY;
@@ -828,17 +835,18 @@ static int32_t smlParseTagsFromJSON(SSmlHandle *info, cJSON *tags, SSmlLineInfo
       }
     }
 
-    SSmlLineInfo *key = (SSmlLineInfo *)taosMemoryMalloc(sizeof(SSmlLineInfo));
-    *key = *elements;
-    if(info->parseJsonByLib){
-      key->tags = taosMemoryMalloc(elements->tagsLen + 1);
-      memcpy(key->tags, elements->tags, elements->tagsLen);
-      key->tags[elements->tagsLen] = 0;
-    }
-    tinfo->key = key;
-    nodeListSet(&info->childTables, key, POINTER_BYTES, tinfo, is_same_child_table_telnet);
+//    SSmlLineInfo *key = (SSmlLineInfo *)taosMemoryMalloc(sizeof(SSmlLineInfo));
+//    *key = *elements;
+//    if(info->parseJsonByLib){
+//      key->tags = taosMemoryMalloc(elements->tagsLen + 1);
+//      memcpy(key->tags, elements->tags, elements->tagsLen);
+//      key->tags[elements->tagsLen] = 0;
+//    }
+//    tinfo->key = key;
+    taosHashPut(info->childTables, elements->measureTag, elements->measureLen + elements->tagsLen, &tinfo, POINTER_BYTES);
+    tmp = &tinfo;
   }
-  if (info->dataFormat) info->currTableDataCtx = tinfo->tableDataCtx;
+  if (info->dataFormat) info->currTableDataCtx = (*tmp)->tableDataCtx;
 
   return ret;
 }
@@ -1011,6 +1019,8 @@ static int32_t smlParseJSONStringExt(SSmlHandle *info, cJSON *root, SSmlLineInfo
       elements->tags = NULL;
       return ret;
     }
+  }else{
+    elements->measureTag = info->preLine.measureTag;
   }
 
   if(needFree){
@@ -1189,6 +1199,8 @@ static int32_t smlParseJSONString(SSmlHandle *info, char **start, SSmlLineInfo *
       uError("OTD:0x%" PRIx64 " Unable to parse tags from JSON payload", info->id);
       return ret;
     }
+  }else{
+    elements->measureTag = info->preLine.measureTag;
   }
 
   if(unlikely(info->reRun)){
@@ -1259,7 +1271,7 @@ int32_t smlParseJSON(SSmlHandle *info, char *payload) {
     if(info->dataFormat) {
       SSmlLineInfo element = {0};
       ret = smlParseJSONString(info, &dataPointStart, &element);
-      if(element.measure == NULL) break;
+      if(element.measureTagsLen != 0) taosMemoryFree(element.measureTag);
     }else{
       if(cnt >= payloadNum){
         payloadNum = payloadNum << 1;
diff --git a/source/client/src/clientSmlLine.c b/source/client/src/clientSmlLine.c
index 890245f53d5f7cbf52613ca7804da3c43e9543f8..e1fd8c2a81724ffae00ee045b57797274d02d70e 100644
--- a/source/client/src/clientSmlLine.c
+++ b/source/client/src/clientSmlLine.c
@@ -148,9 +148,9 @@ static int32_t smlParseTagKv(SSmlHandle *info, char **sql, char *sqlEnd,
   SArray *superKV = NULL;
   if(info->dataFormat){
     if(unlikely(!isSameMeasure)){
-      SSmlSTableMeta *sMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, currElement->measure, currElement->measureLen, NULL);
-
-      if(unlikely(sMeta == NULL)){
+      SSmlSTableMeta **tmp = (SSmlSTableMeta **)taosHashGet(info->superTables, currElement->measure, currElement->measureLen);
+      SSmlSTableMeta *sMeta = NULL;
+      if(unlikely(tmp == NULL)){
         STableMeta * pTableMeta = smlGetMeta(info, currElement->measure, currElement->measureLen);
         if(pTableMeta == NULL){
           info->dataFormat = false;
@@ -159,10 +159,11 @@ static int32_t smlParseTagKv(SSmlHandle *info, char **sql, char *sqlEnd,
         }
         sMeta = smlBuildSTableMeta(info->dataFormat);
         sMeta->tableMeta = pTableMeta;
-        nodeListSet(&info->superTables, currElement->measure, currElement->measureLen, sMeta, NULL);
+        taosHashPut(info->superTables, currElement->measure, currElement->measureLen, &sMeta, POINTER_BYTES);
+        tmp = &sMeta;
       }
-      info->currSTableMeta = sMeta->tableMeta;
-      superKV = sMeta->tags;
+      info->currSTableMeta = (*tmp)->tableMeta;
+      superKV = (*tmp)->tags;
 
       if(unlikely(taosArrayGetSize(superKV) == 0)){
         isSuperKVInit = false;
@@ -258,13 +259,13 @@ static int32_t smlParseTagKv(SSmlHandle *info, char **sql, char *sqlEnd,
         SSmlKv *maxKV = (SSmlKv *)taosArrayGet(maxKVs, cnt);
         if(unlikely(kv.length > maxKV->length)){
           maxKV->length = kv.length;
-          SSmlSTableMeta *tableMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, currElement->measure, currElement->measureLen, NULL);
+          SSmlSTableMeta **tableMeta = (SSmlSTableMeta **)taosHashGet(info->superTables, currElement->measure, currElement->measureLen);
           if(unlikely(NULL == tableMeta)){
             uError("SML:0x%" PRIx64 " NULL == tableMeta", info->id);
             return TSDB_CODE_SML_INTERNAL_ERROR;
           }
 
-          SSmlKv *oldKV = (SSmlKv *)taosArrayGet(tableMeta->tags, cnt);
+          SSmlKv *oldKV = (SSmlKv *)taosArrayGet((*tableMeta)->tags, cnt);
           oldKV->length = kv.length;
           info->needModifySchema = true;
         }
@@ -310,7 +311,7 @@ static int32_t smlParseTagKv(SSmlHandle *info, char **sql, char *sqlEnd,
     (*sql)++;
   }
 
-  void* oneTable = nodeListGet(info->childTables, currElement->measure, currElement->measureTagsLen, NULL);
+  void* oneTable = taosHashGet(info->childTables, currElement->measure, currElement->measureTagsLen);
   if ((oneTable != NULL)) {
     return TSDB_CODE_SUCCESS;
   }
@@ -332,7 +333,7 @@ static int32_t smlParseTagKv(SSmlHandle *info, char **sql, char *sqlEnd,
     }
   }
 
-  nodeListSet(&info->childTables, currElement->measure, currElement->measureTagsLen, tinfo, NULL);
+  taosHashPut(info->childTables, currElement->measure, currElement->measureTagsLen, &tinfo, POINTER_BYTES);
 
   return TSDB_CODE_SUCCESS;
 }
@@ -345,18 +346,18 @@ static int32_t smlParseColKv(SSmlHandle *info, char **sql, char *sqlEnd,
   SArray *superKV = NULL;
   if(info->dataFormat){
     if(unlikely(!isSameCTable)){
-      SSmlTableInfo *oneTable = (SSmlTableInfo *)nodeListGet(info->childTables, currElement->measure, currElement->measureTagsLen, NULL);
+      SSmlTableInfo **oneTable = (SSmlTableInfo **)taosHashGet(info->childTables, currElement->measure, currElement->measureTagsLen);
       if (unlikely(oneTable == NULL)) {
         smlBuildInvalidDataMsg(&info->msgBuf, "child table should inside", currElement->measure);
         return TSDB_CODE_SML_INVALID_DATA;
       }
-      info->currTableDataCtx = oneTable->tableDataCtx;
+      info->currTableDataCtx = (*oneTable)->tableDataCtx;
     }
 
     if(unlikely(!isSameMeasure)){
-      SSmlSTableMeta *sMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, currElement->measure, currElement->measureLen, NULL);
-
-      if(unlikely(sMeta == NULL)){
+      SSmlSTableMeta **tmp = (SSmlSTableMeta **)taosHashGet(info->superTables, currElement->measure, currElement->measureLen);
+      SSmlSTableMeta *sMeta = NULL;
+      if(unlikely(tmp == NULL)){
         STableMeta * pTableMeta = smlGetMeta(info, currElement->measure, currElement->measureLen);
         if(pTableMeta == NULL){
           info->dataFormat = false;
@@ -365,10 +366,11 @@ static int32_t smlParseColKv(SSmlHandle *info, char **sql, char *sqlEnd,
         }
         sMeta = smlBuildSTableMeta(info->dataFormat);
         sMeta->tableMeta = pTableMeta;
-        nodeListSet(&info->superTables, currElement->measure, currElement->measureLen, sMeta, NULL);
+        taosHashPut(info->superTables, currElement->measure, currElement->measureLen, &sMeta, POINTER_BYTES);
+        tmp = &sMeta;
       }
-      info->currSTableMeta = sMeta->tableMeta;
-      superKV = sMeta->cols;
+      info->currSTableMeta = (*tmp)->tableMeta;
+      superKV = (*tmp)->cols;
       if(unlikely(taosArrayGetSize(superKV) == 0)){
         isSuperKVInit = false;
       }
@@ -487,13 +489,13 @@ static int32_t smlParseColKv(SSmlHandle *info, char **sql, char *sqlEnd,
 
         if(unlikely(IS_VAR_DATA_TYPE(kv.type) && kv.length > maxKV->length)){
           maxKV->length = kv.length;
-          SSmlSTableMeta *tableMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, currElement->measure, currElement->measureLen, NULL);
+          SSmlSTableMeta **tableMeta = (SSmlSTableMeta **)taosHashGet(info->superTables, currElement->measure, currElement->measureLen);
           if(unlikely(NULL == tableMeta)){
             uError("SML:0x%" PRIx64 " NULL == tableMeta", info->id);
             return TSDB_CODE_SML_INTERNAL_ERROR;
           }
 
-          SSmlKv *oldKV = (SSmlKv *)taosArrayGet(tableMeta->cols, cnt);
+          SSmlKv *oldKV = (SSmlKv *)taosArrayGet((*tableMeta)->cols, cnt);
           oldKV->length = kv.length;
           info->needModifySchema = true;
         }
diff --git a/source/client/src/clientSmlTelnet.c b/source/client/src/clientSmlTelnet.c
index d43ab6c9f97ca7d1c4523f03ff2bb9c73556fc4b..7f669ffead9cb2545809776f6100a8d1a83bdb51 100644
--- a/source/client/src/clientSmlTelnet.c
+++ b/source/client/src/clientSmlTelnet.c
@@ -71,6 +71,7 @@ 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){
+    elements->measureTag = info->preLine.measureTag;
     return TSDB_CODE_SUCCESS;
   }
 
@@ -83,9 +84,9 @@ static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SS
   SArray *superKV = NULL;
   if(info->dataFormat){
     if(!isSameMeasure){
-      SSmlSTableMeta *sMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, elements->measure, elements->measureLen, NULL);
-
-      if(unlikely(sMeta == NULL)){
+      SSmlSTableMeta **tmp = (SSmlSTableMeta **)taosHashGet(info->superTables, elements->measure, elements->measureLen);
+      SSmlSTableMeta *sMeta = NULL;
+      if(unlikely(tmp == NULL)){
         STableMeta * pTableMeta = smlGetMeta(info, elements->measure, elements->measureLen);
         if(pTableMeta == NULL){
           info->dataFormat = false;
@@ -94,10 +95,11 @@ static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SS
         }
         sMeta = smlBuildSTableMeta(info->dataFormat);
         sMeta->tableMeta = pTableMeta;
-        nodeListSet(&info->superTables, elements->measure, elements->measureLen, sMeta, NULL);
+        taosHashPut(info->superTables, elements->measure, elements->measureLen, &sMeta, POINTER_BYTES);
+        tmp = &sMeta;
       }
-      info->currSTableMeta = sMeta->tableMeta;
-      superKV = sMeta->tags;
+      info->currSTableMeta = (*tmp)->tableMeta;
+      superKV = (*tmp)->tags;
 
       if(unlikely(taosArrayGetSize(superKV) == 0)){
         isSuperKVInit = false;
@@ -183,13 +185,13 @@ static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SS
         SSmlKv *maxKV = (SSmlKv *)taosArrayGet(maxKVs, cnt);
         if(unlikely(kv.length > maxKV->length)){
           maxKV->length = kv.length;
-          SSmlSTableMeta *tableMeta = (SSmlSTableMeta *)nodeListGet(info->superTables, elements->measure, elements->measureLen, NULL);
+          SSmlSTableMeta **tableMeta = (SSmlSTableMeta **)taosHashGet(info->superTables, elements->measure, elements->measureLen);
           if(unlikely(NULL == tableMeta)){
             uError("SML:0x%" PRIx64 " NULL == tableMeta", info->id);
             return TSDB_CODE_SML_INTERNAL_ERROR;
           }
 
-          SSmlKv *oldKV = (SSmlKv *)taosArrayGet(tableMeta->tags, cnt);
+          SSmlKv *oldKV = (SSmlKv *)taosArrayGet((*tableMeta)->tags, cnt);
           oldKV->length = kv.length;
           info->needModifySchema = true;
         }
@@ -229,8 +231,15 @@ static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SS
     taosArrayPush(preLineKV, &kv);
     cnt++;
   }
-  SSmlTableInfo *tinfo = (SSmlTableInfo *)nodeListGet(info->childTables, elements, POINTER_BYTES, is_same_child_table_telnet);
-  if (unlikely(tinfo == NULL)) {
+
+  elements->measureTag = (char*)taosMemoryMalloc(elements->measureLen + elements->tagsLen);
+  memcpy(elements->measureTag, elements->measure, elements->measureLen);
+  memcpy(elements->measureTag + elements->measureLen, elements->tags, elements->tagsLen);
+  elements->measureTagsLen = elements->measureLen + elements->tagsLen;
+
+  SSmlTableInfo **tmp = (SSmlTableInfo **)taosHashGet(info->childTables, elements->measureTag, elements->measureLen + elements->tagsLen);
+  SSmlTableInfo *tinfo = NULL;
+  if (unlikely(tmp == NULL)) {
     tinfo = smlBuildTableInfo(1, elements->measure, elements->measureLen);
     if (!tinfo) {
       return TSDB_CODE_OUT_OF_MEMORY;
@@ -249,12 +258,13 @@ static int32_t smlParseTelnetTags(SSmlHandle *info, char *data, char *sqlEnd, SS
       }
     }
 
-    SSmlLineInfo *key = (SSmlLineInfo *)taosMemoryMalloc(sizeof(SSmlLineInfo));
-    *key = *elements;
-    tinfo->key = key;
-    nodeListSet(&info->childTables, key, POINTER_BYTES, tinfo, is_same_child_table_telnet);
+//    SSmlLineInfo *key = (SSmlLineInfo *)taosMemoryMalloc(sizeof(SSmlLineInfo));
+//    *key = *elements;
+//    tinfo->key = key;
+    taosHashPut(info->childTables, elements->measureTag, elements->measureLen + elements->tagsLen, &tinfo, POINTER_BYTES);
+    tmp = &tinfo;
   }
-  if (info->dataFormat) info->currTableDataCtx = tinfo->tableDataCtx;
+  if (info->dataFormat) info->currTableDataCtx = (*tmp)->tableDataCtx;
 
   return TSDB_CODE_SUCCESS;
 }