diff --git a/src/client/inc/tscUtil.h b/src/client/inc/tscUtil.h
index ef82ac53a2863bb05c361d425b7ddcfc0a3a1f19..eaefbdd85f7451a4387a067ec826e6e0f838d503 100644
--- a/src/client/inc/tscUtil.h
+++ b/src/client/inc/tscUtil.h
@@ -30,10 +30,10 @@ extern "C" {
 #include "tsclient.h"
 
 #define UTIL_METER_IS_SUPERTABLE(metaInfo) \
-  (((metaInfo)->pMeterMeta != NULL) && ((metaInfo)->pMeterMeta->tableType == TSDB_TABLE_TYPE_SUPER_TABLE))
+  (((metaInfo)->pMeterMeta != NULL) && ((metaInfo)->pMeterMeta->tableType == TSDB_SUPER_TABLE))
 #define UTIL_METER_IS_NOMRAL_METER(metaInfo) (!(UTIL_METER_IS_SUPERTABLE(metaInfo)))
 #define UTIL_METER_IS_CREATE_FROM_METRIC(metaInfo) \
-  (((metaInfo)->pMeterMeta != NULL) && ((metaInfo)->pMeterMeta->tableType == TSDB_TABLE_TYPE_CHILD_TABLE))
+  (((metaInfo)->pMeterMeta != NULL) && ((metaInfo)->pMeterMeta->tableType == TSDB_CHILD_TABLE))
 
 #define TSDB_COL_IS_TAG(f) (((f)&TSDB_COL_TAG) != 0)
 
diff --git a/src/client/src/tscLocal.c b/src/client/src/tscLocal.c
index 08ef80b9ab3e07de9196adc87eb928641ca21157..bc893d30049cd560016c563fc8c560e193afc89d 100644
--- a/src/client/src/tscLocal.c
+++ b/src/client/src/tscLocal.c
@@ -79,8 +79,8 @@ static int32_t getToStringLength(const char *pData, int32_t length, int32_t type
 static int32_t tscMaxLengthOfTagsFields(SSqlObj *pSql) {
   STableMeta *pMeta = tscGetMeterMetaInfo(&pSql->cmd, 0, 0)->pMeterMeta;
 
-  if (pMeta->tableType == TSDB_TABLE_TYPE_SUPER_TABLE || pMeta->tableType == TSDB_TABLE_TYPE_NORMAL_TABLE ||
-      pMeta->tableType == TSDB_TABLE_TYPE_STREAM_TABLE) {
+  if (pMeta->tableType == TSDB_SUPER_TABLE || pMeta->tableType == TSDB_NORMAL_TABLE ||
+      pMeta->tableType == TSDB_STREAM_TABLE) {
     return 0;
   }
 
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index 8453fdb305b7b9ff0cb440bcf31f05a90b78a15a..18161833f8a93c978f98dd7d4f6bb0ec0bdb2576 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -2616,7 +2616,7 @@ int tscProcessMeterMetaRsp(SSqlObj *pSql) {
 //  int32_t  tagLen = 0;
 //  SSchema *pTagsSchema = tsGetTagSchema(pMeta);
 //
-//  if (pMeta->tableType == TSDB_TABLE_TYPE_CHILD_TABLE) {
+//  if (pMeta->tableType == TSDB_CHILD_TABLE) {
 //    for (int32_t i = 0; i < pMeta->numOfTags; ++i) {
 //      tagLen += pTagsSchema[i].bytes;
 //    }
@@ -2731,7 +2731,7 @@ int tscProcessMultiMeterMetaRsp(SSqlObj *pSql) {
     int32_t  tagLen = 0;
     SSchema *pTagsSchema = tsGetTagSchema(pMeta);
 
-    if (pMeta->tableType == TSDB_TABLE_TYPE_CHILD_TABLE) {
+    if (pMeta->tableType == TSDB_CHILD_TABLE) {
       for (int32_t j = 0; j < pMeta->numOfTags; ++j) {
         tagLen += pTagsSchema[j].bytes;
       }
diff --git a/src/common/inc/dataformat.h b/src/common/inc/dataformat.h
index 4589a0573aca0e9a8595cb9942f6ddfc9b6bc00b..a269bdc2589099d3dc7f392e09c1084993f9a58a 100644
--- a/src/common/inc/dataformat.h
+++ b/src/common/inc/dataformat.h
@@ -21,7 +21,6 @@
 
 #include "taosdef.h"
 
-
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/src/dnode/src/dnodeMgmt.c b/src/dnode/src/dnodeMgmt.c
index 79d2de7739142bb5ea3069dac245a759875d4e06..33bd21bd31fb31691a67e7dcdb82f27f3ae09a2d 100644
--- a/src/dnode/src/dnodeMgmt.c
+++ b/src/dnode/src/dnodeMgmt.c
@@ -87,18 +87,7 @@ int32_t dnodeInitMgmt() {
   cfg.cfg.maxSessions = 1000;
   cfg.cfg.daysPerFile = 10;
 
-  dnodeCreateVnode(&cfg);
-  SVnodeObj *pVnode = dnodeGetVnode(cfg.cfg.vgId);
-  dnodeDropVnode(pVnode);
-
-  // dnodeCreateVnode(&cfg);
-  // SVnodeObj *pVnode = dnodeGetVnode(cfg.cfg.vgId);
-  // dnodeCleanupVnodes();
-
-  dnodeOpenVnodes();
-  dnodeCleanupVnodes();
-
-  //return dnodeOpenVnodes();
+  return dnodeOpenVnodes();
 }
 
 void dnodeCleanupMgmt() {
@@ -182,9 +171,9 @@ static int32_t dnodeOpenVnodes() {
       int32_t vnode = atoi(de->d_name + 5);
       if (vnode == 0) continue;
 
-      char tsdbDir[TSDB_FILENAME_LEN];
-      sprintf(tsdbDir, "%s/%s", tsVnodeDir, de->d_name);
-      int32_t code = dnodeOpenVnode(vnode, tsdbDir);
+      char vnodeDir[TSDB_FILENAME_LEN];
+      sprintf(vnodeDir, "%s/%s", tsVnodeDir, de->d_name);
+      int32_t code = dnodeOpenVnode(vnode, vnodeDir);
       if (code == 0) {
         numOfVnodes++;
       }
@@ -203,9 +192,11 @@ static void dnodeCleanupVnodes() {
 }
 
 static int32_t dnodeOpenVnode(int32_t vnode, char *rootDir) {
-  void *pTsdb = tsdbOpenRepo(rootDir);
+  char tsdbDir[TSDB_FILENAME_LEN];
+  sprintf(tsdbDir, "%s/tsdb", rootDir);
+  void *pTsdb = tsdbOpenRepo(tsdbDir);
   if (pTsdb == NULL) {
-    dError("failed to open vnode:%d in dir:%s, reason:%s", vnode, rootDir, tstrerror(terrno));
+    dError("failed to open tsdb in vnode:%d %s, reason:%s", vnode, tsdbDir, tstrerror(terrno));
     return terrno;
   }
 
@@ -260,7 +251,7 @@ static void dnodeCleanupVnode(SVnodeObj *pVnode) {
 }
 
 static int32_t dnodeCreateVnode(SMDCreateVnodeMsg *pVnodeCfg) {
-  STsdbCfg tsdbCfg;
+  STsdbCfg tsdbCfg = {0};
   tsdbCfg.vgId                = pVnodeCfg->cfg.vgId;
   tsdbCfg.precision           = pVnodeCfg->cfg.precision;
   tsdbCfg.tsdbId              = pVnodeCfg->vnode;
@@ -273,9 +264,32 @@ static int32_t dnodeCreateVnode(SMDCreateVnodeMsg *pVnodeCfg) {
 
   char rootDir[TSDB_FILENAME_LEN] = {0};
   sprintf(rootDir, "%s/vnode%d", tsVnodeDir, pVnodeCfg->cfg.vgId);
+  if (mkdir(rootDir, 0755) != 0) {
+    if (errno == EACCES) {
+      return TSDB_CODE_NO_DISK_PERMISSIONS;
+    } else if (errno == ENOSPC) {
+      return TSDB_CODE_SERV_NO_DISKSPACE;
+    } else if (errno == EEXIST) {
+    } else {
+      return TSDB_CODE_VG_INIT_FAILED;
+    }
+  }
+
+  sprintf(rootDir, "%s/vnode%d/tsdb", tsVnodeDir, pVnodeCfg->cfg.vgId);
+  if (mkdir(rootDir, 0755) != 0) {
+    if (errno == EACCES) {
+      return TSDB_CODE_NO_DISK_PERMISSIONS;
+    } else if (errno == ENOSPC) {
+      return TSDB_CODE_SERV_NO_DISKSPACE;
+    } else if (errno == EEXIST) {
+    } else {
+      return TSDB_CODE_VG_INIT_FAILED;
+    }
+  }
 
   void *pTsdb = tsdbCreateRepo(rootDir, &tsdbCfg, NULL);
   if (pTsdb == NULL) {
+    dError("failed to create tsdb in vnode:%d, reason:%s", pVnodeCfg->vnode, tstrerror(terrno));
     return terrno;
   }
 
@@ -295,6 +309,7 @@ static int32_t dnodeCreateVnode(SMDCreateVnodeMsg *pVnodeCfg) {
 
   taosAddIntHash(tsDnodeVnodesHash, vnodeObj.vgId, (char *) (&vnodeObj));
 
+  dPrint("vnode:%d is created", pVnodeCfg->vnode);
   return TSDB_CODE_SUCCESS;
 }
 
@@ -324,13 +339,16 @@ static void dnodeProcessCreateVnodeMsg(SRpcMsg *rpcMsg) {
   pCreate->cfg.maxSessions = htonl(pCreate->cfg.maxSessions);
   pCreate->cfg.daysPerFile = htonl(pCreate->cfg.daysPerFile);
 
+  dTrace("start to create vnode:%d", pCreate->vnode);
+
   SVnodeObj *pVnodeObj = (SVnodeObj *) taosGetIntHashData(tsDnodeVnodesHash, pCreate->cfg.vgId);
   if (pVnodeObj != NULL) {
     rpcRsp.code = TSDB_CODE_SUCCESS;
+    dPrint("vnode:%d is already exist", pCreate->vnode);
   } else {
     rpcRsp.code = dnodeCreateVnode(pCreate);
   }
-  rpcRsp.code = TSDB_CODE_SUCCESS;
+
   rpcSendResponse(&rpcRsp);
 }
 
diff --git a/src/dnode/src/dnodeWrite.c b/src/dnode/src/dnodeWrite.c
index c5d44cc95a77bf2df58769737428af53c6d1b512..8182e0826c7a972144130552d574026ba07ef4e4 100644
--- a/src/dnode/src/dnodeWrite.c
+++ b/src/dnode/src/dnodeWrite.c
@@ -20,6 +20,8 @@
 #include "tlog.h"
 #include "tqueue.h"
 #include "trpc.h"
+#include "tsdb.h"
+#include "dataformat.h"
 #include "dnodeWrite.h"
 #include "dnodeMgmt.h"
 
@@ -106,13 +108,13 @@ void dnodeWrite(SRpcMsg *pMsg) {
 
   while (leftLen > 0) {
     SWriteMsgHead *pHead = (SWriteMsgHead *) pCont;
-    int32_t vgId    = htonl(pHead->vgId);
-    int32_t contLen = htonl(pHead->contLen);
+    pHead->vgId    = htonl(pHead->vgId);
+    pHead->contLen = htonl(pHead->contLen);
 
-    void *pVnode = dnodeGetVnode(vgId);
+    void *pVnode = dnodeGetVnode(pHead->vgId);
     if (pVnode == NULL) {
-      leftLen -= contLen;
-      pCont -= contLen;
+      leftLen -= pHead->contLen;
+      pCont -= pHead->contLen;
       continue;
     }
    
@@ -120,7 +122,7 @@ void dnodeWrite(SRpcMsg *pMsg) {
     SWriteMsg writeMsg;
     writeMsg.rpcMsg      = *pMsg;
     writeMsg.pCont       = pCont;
-    writeMsg.contLen     = contLen;
+    writeMsg.contLen     = pHead->contLen;
     writeMsg.pRpcContext = pRpcContext;
     writeMsg.pVnode      = pVnode;  // pVnode shall be saved for usage later
  
@@ -128,8 +130,8 @@ void dnodeWrite(SRpcMsg *pMsg) {
     taosWriteQitem(queue, &writeMsg);
 
     // next vnode 
-    leftLen -= contLen;
-    pCont -= contLen;
+    leftLen -= pHead->contLen;
+    pCont -= pHead->contLen;
     queuedMsgNum++;
   }
 
@@ -148,7 +150,7 @@ void dnodeWrite(SRpcMsg *pMsg) {
 void *dnodeAllocateWriteWorker() {
   SWriteWorker *pWorker = wWorkerPool.writeWorker + wWorkerPool.nextId;
   taos_queue *queue = taosOpenQueue(sizeof(SWriteMsg));
-  if (queue != NULL) return queue;
+  if (queue == NULL) return NULL;
 
   if (pWorker->qset == NULL) {
     pWorker->qset = taosOpenQset();
@@ -289,45 +291,68 @@ static void dnodeProcessSubmitMsg(SWriteMsg *pMsg) {
 
 static void dnodeProcessCreateTableMsg(SWriteMsg *pMsg) {
   SMDCreateTableMsg *pTable = pMsg->rpcMsg.pCont;
-  if (pTable->tableType == TSDB_TABLE_TYPE_CHILD_TABLE) {
-    dTrace("table:%s, start to create child table, stable:%s", pTable->tableId, pTable->superTableId);
-  } else if (pTable->tableType == TSDB_TABLE_TYPE_NORMAL_TABLE){
-    dTrace("table:%s, start to create normal table", pTable->tableId);
-  } else if (pTable->tableType == TSDB_TABLE_TYPE_STREAM_TABLE){
-    dTrace("table:%s, start to create stream table", pTable->tableId);
-  } else {
-    dError("table:%s, invalid table type:%d", pTable->tableType);
+  dTrace("start to create table:%s in vgroup:%d", pTable->tableId, pTable->vgId);
+
+  SRpcMsg rpcRsp = {.handle = pMsg->rpcMsg.handle, .pCont = NULL, .contLen = 0, .code = 0, .msgType = 0};
+  void *pVnode = dnodeGetVnode(pTable->vgId);
+  if (pVnode == NULL) {
+    rpcRsp.code = TSDB_CODE_INVALID_VGROUP_ID;
+    dTrace("failed to create table:%s in vgroup:%d, reason:%s", pTable->tableId, pTable->vgId, tstrerror(rpcRsp.code));
+    rpcSendResponse(&rpcRsp);
+    return;
   }
 
-//  pTable->numOfColumns  = htons(pTable->numOfColumns);
-//  pTable->numOfTags     = htons(pTable->numOfTags);
-//  pTable->sid           = htonl(pTable->sid);
-//  pTable->sversion      = htonl(pTable->sversion);
-//  pTable->tagDataLen    = htonl(pTable->tagDataLen);
-//  pTable->sqlDataLen    = htonl(pTable->sqlDataLen);
-//  pTable->contLen       = htonl(pTable->contLen);
-//  pTable->numOfVPeers   = htonl(pTable->numOfVPeers);
-//  pTable->uid           = htobe64(pTable->uid);
-//  pTable->superTableUid = htobe64(pTable->superTableUid);
-//  pTable->createdTime   = htobe64(pTable->createdTime);
-//
-//  for (int i = 0; i < pTable->numOfVPeers; ++i) {
-//    pTable->vpeerDesc[i].ip    = htonl(pTable->vpeerDesc[i].ip);
-//    pTable->vpeerDesc[i].vnode = htonl(pTable->vpeerDesc[i].vnode);
-//  }
-//
-//  int32_t totalCols = pTable->numOfColumns + pTable->numOfTags;
-//  SSchema *pSchema = (SSchema *) pTable->data;
-//  for (int32_t col = 0; col < totalCols; ++col) {
-//    pSchema->bytes = htons(pSchema->bytes);
-//    pSchema->colId = htons(pSchema->colId);
-//    pSchema++;
-//  }
-//
-//  int32_t code = dnodeCreateTable(pTable);
+  void *pTsdb = dnodeGetVnodeTsdb(pVnode);
+  if (pTsdb == NULL) {
+    dnodeReleaseVnode(pVnode);
+    rpcRsp.code = TSDB_CODE_NOT_ACTIVE_VNODE;
+    dTrace("failed to create table:%s in vgroup:%d, reason:%s", pTable->tableId, pTable->vgId, tstrerror(rpcRsp.code));
+    rpcSendResponse(&rpcRsp);
+    return;
+  }
 
-  SRpcMsg rpcRsp = {.handle = pMsg->rpcMsg.handle, .pCont = NULL, .contLen = 0, .code = 0, .msgType = 0};
-  rpcSendResponse(&rpcRsp);
+  pTable->numOfColumns  = htons(pTable->numOfColumns);
+  pTable->numOfTags     = htons(pTable->numOfTags);
+  pTable->sid           = htonl(pTable->sid);
+  pTable->sversion      = htonl(pTable->sversion);
+  pTable->tagDataLen    = htonl(pTable->tagDataLen);
+  pTable->sqlDataLen    = htonl(pTable->sqlDataLen);
+  pTable->uid           = htobe64(pTable->uid);
+  pTable->superTableUid = htobe64(pTable->superTableUid);
+  pTable->createdTime   = htobe64(pTable->createdTime);
+  SSchema *pSchema = (SSchema *) pTable->data;
+
+  STableCfg tCfg;
+  tsdbInitTableCfg(&tCfg, pTable->tableType, pTable->uid, pTable->sid);
+
+  STSchema *pDestSchema = tdNewSchema(pTable->numOfColumns);
+  for (int i = 0; i < pTable->numOfColumns; i++) {
+    tdSchemaAppendCol(pDestSchema, pSchema[i].type, htons(pSchema[i].colId), htons(pSchema[i].bytes));
+  }
+  tsdbTableSetSchema(&tCfg, pDestSchema, false);
+
+  if (pTable->numOfTags != NULL) {
+    STSchema *pDestTagSchema = tdNewSchema(pTable->numOfTags);
+    for (int i = pTable->numOfColumns; i < pTable->numOfColumns + pTable->numOfTags; i++) {
+      tdSchemaAppendCol(pDestTagSchema, pSchema[i].type, htons(pSchema[i].colId), htons(pSchema[i].bytes));
+    }
+    tsdbTableSetSchema(&tCfg, pDestTagSchema, false);
+  }
+
+  if (pTable->tableType == TSDB_CHILD_TABLE) {
+    // TODO: add data row
+  }
+
+  rpcRsp.code = tsdbCreateTable(pTsdb, &tCfg);
+  dnodeReleaseVnode(pVnode);
+
+  if (rpcRsp.code != TSDB_CODE_SUCCESS) {
+    dError("failed to create table:%s in vgroup:%d, reason:%s", pTable->tableId, pTable->vgId, tstrerror(rpcRsp.code));
+    rpcSendResponse(&rpcRsp);
+  } else {
+    dTrace("create table:%s in vgroup:%d finished", pTable->tableId, pTable->vgId);
+    rpcSendResponse(&rpcRsp);
+  }
 }
 
 static void dnodeProcessDropTableMsg(SWriteMsg *pMsg) {
diff --git a/src/inc/taosdef.h b/src/inc/taosdef.h
index 85bdfea98f4037bf684a8a64cacd574ba882dae8..712c99adc2261e8e62d1a6a8904f17df95d3dc46 100644
--- a/src/inc/taosdef.h
+++ b/src/inc/taosdef.h
@@ -297,6 +297,20 @@ void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 #define TSDB_SESSIONS_PER_VNODE (300)
 #define TSDB_SESSIONS_PER_DNODE (TSDB_SESSIONS_PER_VNODE * TSDB_MAX_VNODES)
 
+enum {
+  TSDB_PRECISION_MILLI,
+  TSDB_PRECISION_MICRO,
+  TSDB_PRECISION_NANO
+};
+
+typedef enum {
+  TSDB_SUPER_TABLE        = 0,  // super table
+  TSDB_CHILD_TABLE        = 1,  // table created from super table
+  TSDB_NORMAL_TABLE       = 2,  // ordinary table
+  TSDB_STREAM_TABLE       = 3,  // table created from stream computing
+  TSDB_TABLE_MAX          = 4
+} TSDB_TABLE_TYPE;
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index 34ef1eb67ca34c3f4977e8224e11ab0cd7f41a1b..f78c82c758b2bc90b47d1e07dcade29ad6d788a3 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -251,7 +251,6 @@ typedef struct {
 typedef struct {
   int32_t    contLen;
   int32_t    vgId;
-
   int8_t     tableType;
   int16_t    numOfColumns;
   int16_t    numOfTags;
diff --git a/src/mnode/CMakeLists.txt b/src/mnode/CMakeLists.txt
index 16dbbcb740834e34fb2d8545a7926a054c1a122a..5bf4cfd604c81f14a95129bcd6887d2ca2904b4f 100644
--- a/src/mnode/CMakeLists.txt
+++ b/src/mnode/CMakeLists.txt
@@ -4,6 +4,7 @@ PROJECT(TDengine)
 IF ((TD_LINUX_64) OR (TD_LINUX_32 AND TD_ARM))
   INCLUDE_DIRECTORIES(${TD_OS_DIR}/inc)
   INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/inc)
+  INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/common/inc)
   INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/util/inc)
   INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/query/inc)
   INCLUDE_DIRECTORIES(${TD_COMMUNITY_DIR}/src/dnode/inc)
diff --git a/src/mnode/src/mgmtNormalTable.c b/src/mnode/src/mgmtNormalTable.c
index 773467259945b8bd8f1abfe31e258351fc0eb74c..fc178b81c6483cddeab4e8a23f98e163bf49137e 100644
--- a/src/mnode/src/mgmtNormalTable.c
+++ b/src/mnode/src/mgmtNormalTable.c
@@ -291,31 +291,26 @@ static void *mgmtBuildCreateNormalTableMsg(SNormalTableObj *pTable, SVgObj *pVgr
   int32_t totalCols = pTable->numOfColumns;
   int32_t contLen   = sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema) + pTable->sqlLen;
 
-  SMDCreateTableMsg *pCreateTable = rpcMallocCont(contLen);
-  if (pCreateTable == NULL) {
+  SMDCreateTableMsg *pCreate = rpcMallocCont(contLen);
+  if (pCreate == NULL) {
     return NULL;
   }
 
-  memcpy(pCreateTable->tableId, pTable->tableId, TSDB_TABLE_ID_LEN);
-  pCreateTable->tableType     = pTable->type;
-  pCreateTable->numOfColumns  = htons(pTable->numOfColumns);
-  pCreateTable->numOfTags     = htons(0);
-  pCreateTable->sid           = htonl(pTable->sid);
-  pCreateTable->sversion      = htonl(pTable->sversion);
-  pCreateTable->tagDataLen    = htonl(0);
-  pCreateTable->sqlDataLen    = htonl(pTable->sqlLen);
-  pCreateTable->contLen       = htonl(contLen);
-  pCreateTable->numOfVPeers   = htonl(pVgroup->numOfVnodes);
-  pCreateTable->uid           = htobe64(pTable->uid);
-  pCreateTable->superTableUid = htobe64(0);
-  pCreateTable->createdTime   = htobe64(pTable->createdTime);
-
-  for (int i = 0; i < pVgroup->numOfVnodes; ++i) {
-    pCreateTable->vpeerDesc[i].ip = htonl(pVgroup->vnodeGid[i].ip);
-    pCreateTable->vpeerDesc[i].vnode = htonl(pVgroup->vnodeGid[i].vnode);
-  }
-
-  SSchema *pSchema = (SSchema *) pCreateTable->data;
+  memcpy(pCreate->tableId, pTable->tableId, TSDB_TABLE_ID_LEN + 1);
+  pCreate->contLen       = htonl(contLen);
+  pCreate->vgId          = htonl(pVgroup->vgId);
+  pCreate->tableType     = pTable->type;
+  pCreate->numOfColumns  = htons(pTable->numOfColumns);
+  pCreate->numOfTags     = htons(0);
+  pCreate->sid           = htonl(pTable->sid);
+  pCreate->sversion      = htonl(pTable->sversion);
+  pCreate->tagDataLen    = htonl(0);
+  pCreate->sqlDataLen    = htonl(pTable->sqlLen);
+  pCreate->uid           = htobe64(pTable->uid);
+  pCreate->superTableUid = htobe64(0);
+  pCreate->createdTime   = htobe64(pTable->createdTime);
+
+  SSchema *pSchema = (SSchema *) pCreate->data;
   memcpy(pSchema, pTable->schema, totalCols * sizeof(SSchema));
   for (int32_t col = 0; col < totalCols; ++col) {
     pSchema->bytes = htons(pSchema->bytes);
@@ -323,9 +318,9 @@ static void *mgmtBuildCreateNormalTableMsg(SNormalTableObj *pTable, SVgObj *pVgr
     pSchema++;
   }
 
-  memcpy(pCreateTable + sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema), pTable->sql, pTable->sqlLen);
+  memcpy(pCreate + sizeof(SMDCreateTableMsg) + totalCols * sizeof(SSchema), pTable->sql, pTable->sqlLen);
 
-  return pCreateTable;
+  return pCreate;
 }
 
 int32_t mgmtCreateNormalTable(SCMCreateTableMsg *pCreate, int32_t contLen, SVgObj *pVgroup, int32_t sid,
diff --git a/src/mnode/src/mgmtSuperTable.c b/src/mnode/src/mgmtSuperTable.c
index 088792bfac537d5711872f249aa8a942433f6ac4..65d4907e22b52393d8f8da75e1a2bc55bb067b84 100644
--- a/src/mnode/src/mgmtSuperTable.c
+++ b/src/mnode/src/mgmtSuperTable.c
@@ -213,7 +213,7 @@ int32_t mgmtCreateSuperTable(SDbObj *pDb, SCMCreateTableMsg *pCreate) {
   }
 
   strcpy(pStable->tableId, pCreate->tableId);
-  pStable->type        = TSDB_TABLE_TYPE_SUPER_TABLE;
+  pStable->type        = TSDB_SUPER_TABLE;
   pStable->createdTime = taosGetTimestampMs();
   pStable->vgId = 0;
   pStable->sid = 0;
diff --git a/src/mnode/src/mgmtTable.c b/src/mnode/src/mgmtTable.c
index 9c4e0b57a10baec1c3c4883aebf33ee3825694aa..4e6ecc2718c1e0cc269f66b6d8271825d9b404f2 100644
--- a/src/mnode/src/mgmtTable.c
+++ b/src/mnode/src/mgmtTable.c
@@ -119,11 +119,11 @@ STableInfo* mgmtGetTableByPos(uint32_t dnodeIp, int32_t vnode, int32_t sid) {
 }
 
 int32_t mgmtGetTableMeta(SDbObj *pDb, STableInfo *pTable, STableMeta *pMeta, bool usePublicIp) {
-  if (pTable->type == TSDB_TABLE_TYPE_CHILD_TABLE) {
+  if (pTable->type == TSDB_CHILD_TABLE) {
     mgmtGetChildTableMeta(pDb, (SChildTableObj *) pTable, pMeta, usePublicIp);
-  } else if (pTable->type == TSDB_TABLE_TYPE_NORMAL_TABLE) {
+  } else if (pTable->type == TSDB_NORMAL_TABLE) {
     mgmtGetNormalTableMeta(pDb, (SNormalTableObj *) pTable, pMeta, usePublicIp);
-  } else if (pTable->type == TSDB_TABLE_TYPE_SUPER_TABLE) {
+  } else if (pTable->type == TSDB_SUPER_TABLE) {
     mgmtGetSuperTableMeta(pDb, (SSuperTableObj *) pTable, pMeta, usePublicIp);
   } else {
     mTrace("%s, uid:%" PRIu64 " table meta retrieve failed, invalid type", pTable->tableId, pTable->uid);
@@ -176,7 +176,7 @@ static void mgmtCreateTable(SVgObj *pVgroup, SQueuedMsg *pMsg) {
   SRpcIpSet ipSet = mgmtGetIpSetFromVgroup(pVgroup);
   SRpcMsg rpcMsg = {
       .handle  = pMsg,
-      .pCont   = pCreate,
+      .pCont   = pMDCreate,
       .contLen = htonl(pMDCreate->contLen),
       .code    = 0,
       .msgType = TSDB_MSG_TYPE_MD_CREATE_TABLE
@@ -204,16 +204,16 @@ int32_t mgmtDropTable(SDbObj *pDb, char *tableId, int32_t ignore) {
   }
 
   switch (pTable->type) {
-    case TSDB_TABLE_TYPE_SUPER_TABLE:
+    case TSDB_SUPER_TABLE:
       mTrace("table:%s, start to drop super table", tableId);
       return mgmtDropSuperTable(pDb, (SSuperTableObj *) pTable);
-    case TSDB_TABLE_TYPE_CHILD_TABLE:
+    case TSDB_CHILD_TABLE:
       mTrace("table:%s, start to drop child table", tableId);
       return mgmtDropChildTable(pDb, (SChildTableObj *) pTable);
-    case TSDB_TABLE_TYPE_NORMAL_TABLE:
+    case TSDB_NORMAL_TABLE:
       mTrace("table:%s, start to drop normal table", tableId);
       return mgmtDropNormalTable(pDb, (SNormalTableObj *) pTable);
-    case TSDB_TABLE_TYPE_STREAM_TABLE:
+    case TSDB_STREAM_TABLE:
       mTrace("table:%s, start to drop stream table", tableId);
       return mgmtDropNormalTable(pDb, (SNormalTableObj *) pTable);
     default:
@@ -233,31 +233,31 @@ int32_t mgmtAlterTable(SDbObj *pDb, SCMAlterTableMsg *pAlter) {
   }
 
   if (pAlter->type == TSDB_ALTER_TABLE_ADD_TAG_COLUMN) {
-    if (pTable->type == TSDB_TABLE_TYPE_SUPER_TABLE) {
+    if (pTable->type == TSDB_SUPER_TABLE) {
       return mgmtAddSuperTableTag((SSuperTableObj *) pTable, pAlter->schema, 1);
     }
   } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_TAG_COLUMN) {
-    if (pTable->type == TSDB_TABLE_TYPE_SUPER_TABLE) {
+    if (pTable->type == TSDB_SUPER_TABLE) {
       return mgmtDropSuperTableTag((SSuperTableObj *) pTable, pAlter->schema[0].name);
     }
   } else if (pAlter->type == TSDB_ALTER_TABLE_CHANGE_TAG_COLUMN) {
-    if (pTable->type == TSDB_TABLE_TYPE_SUPER_TABLE) {
+    if (pTable->type == TSDB_SUPER_TABLE) {
       return mgmtModifySuperTableTagNameByName((SSuperTableObj *) pTable, pAlter->schema[0].name, pAlter->schema[1].name);
     }
   } else if (pAlter->type == TSDB_ALTER_TABLE_UPDATE_TAG_VAL) {
-    if (pTable->type == TSDB_TABLE_TYPE_CHILD_TABLE) {
+    if (pTable->type == TSDB_CHILD_TABLE) {
       return mgmtModifyChildTableTagValueByName((SChildTableObj *) pTable, pAlter->schema[0].name, pAlter->tagVal);
     }
   } else if (pAlter->type == TSDB_ALTER_TABLE_ADD_COLUMN) {
-    if (pTable->type == TSDB_TABLE_TYPE_NORMAL_TABLE) {
+    if (pTable->type == TSDB_NORMAL_TABLE) {
       return mgmtAddNormalTableColumn((SNormalTableObj *) pTable, pAlter->schema, 1);
-    } else if (pTable->type == TSDB_TABLE_TYPE_SUPER_TABLE) {
+    } else if (pTable->type == TSDB_SUPER_TABLE) {
       return mgmtAddSuperTableColumn((SSuperTableObj *) pTable, pAlter->schema, 1);
     } else {}
   } else if (pAlter->type == TSDB_ALTER_TABLE_DROP_COLUMN) {
-    if (pTable->type == TSDB_TABLE_TYPE_NORMAL_TABLE) {
+    if (pTable->type == TSDB_NORMAL_TABLE) {
       return mgmtDropNormalTableColumnByName((SNormalTableObj *) pTable, pAlter->schema[0].name);
-    } else if (pTable->type == TSDB_TABLE_TYPE_SUPER_TABLE) {
+    } else if (pTable->type == TSDB_SUPER_TABLE) {
       return mgmtDropSuperTableColumnByName((SSuperTableObj *) pTable, pAlter->schema[0].name);
     } else {}
   } else {}
diff --git a/src/util/src/tskiplist.c b/src/util/src/tskiplist.c
index 9b8c86658d4de65c2e620ff8a249044f3fcaf6cd..85b1d3d206f07647c2fd68c9e61e7f8d7367f290 100644
--- a/src/util/src/tskiplist.c
+++ b/src/util/src/tskiplist.c
@@ -253,6 +253,7 @@ static __compar_fn_t getKeyComparator(int32_t keyType) {
       comparFn = compareInt32Val;
       break;
     case TSDB_DATA_TYPE_BIGINT:
+    case TSDB_DATA_TYPE_TIMESTAMP:
       comparFn = compareInt64Val;
       break;
     case TSDB_DATA_TYPE_BOOL:
diff --git a/src/vnode/tsdb/inc/tsdb.h b/src/vnode/tsdb/inc/tsdb.h
index 267b462b91dbd07ac512b02681fb3efc6fdeffab..9b7215d7da12580ce512b0314a6b92fe7bf711e6 100644
--- a/src/vnode/tsdb/inc/tsdb.h
+++ b/src/vnode/tsdb/inc/tsdb.h
@@ -33,13 +33,6 @@ extern "C" {
 #define TSDB_INVALID_SUPER_TABLE_ID -1
 
 // --------- TSDB REPOSITORY CONFIGURATION DEFINITION
-enum { TSDB_PRECISION_MILLI, TSDB_PRECISION_MICRO, TSDB_PRECISION_NANO };
-typedef enum {
-  TSDB_SUPER_TABLE,  // super table
-  TSDB_NTABLE,       // table not created from super table
-  TSDB_STABLE        // table created from super table
-} TSDB_TABLE_TYPE;
-
 typedef struct {
   int8_t  precision;
   int32_t vgId;
@@ -75,6 +68,7 @@ typedef struct {
 typedef struct {
   TSDB_TABLE_TYPE type;
   STableId        tableId;
+  int32_t         sversion;
   int64_t         superUid;
   STSchema *      schema;
   STSchema *      tagSchema;
diff --git a/src/vnode/tsdb/inc/tsdbFile.h b/src/vnode/tsdb/inc/tsdbFile.h
index 7b3e19d0b981d8f1c4d78297b087c55e61984309..ab10fd8e4977706de403f967c92dd9f54eff9950 100644
--- a/src/vnode/tsdb/inc/tsdbFile.h
+++ b/src/vnode/tsdb/inc/tsdbFile.h
@@ -23,8 +23,6 @@
 extern "C" {
 #endif
 
-typedef int32_t file_id_t;
-
 typedef enum {
   TSDB_FILE_TYPE_HEAD,  // .head file type
   TSDB_FILE_TYPE_DATA,  // .data file type
@@ -40,19 +38,33 @@ typedef struct {
 } SFileInfo;
 
 typedef struct {
-  char *    fname;
-  SFileInfo fInfo;
-} SFILE;
+  int     fd;
+  int64_t size;     // total size of the file
+  int64_t tombSize; // unused file size
+} SFile;
 
-// typedef struct {
-//   int64_t offset;
-//   int64_t skey;
-//   int64_t ekey;
-//   int16_t numOfBlocks;
-// } SDataBlock;
+typedef struct {
+  int32_t fileId;
+  SFile   fhead;
+  SFile   fdata;
+  SFile   flast;
+} SFileGroup;
+
+// TSDB file handle
+typedef struct {
+  int32_t    daysPerFile;
+  int32_t    keep;
+  int32_t    minRowPerFBlock;
+  int32_t    maxRowsPerFBlock;
+  SFileGroup fGroup[];
+} STsdbFileH;
 
 #define IS_VALID_TSDB_FILE_TYPE(type) ((type) >= TSDB_FILE_TYPE_HEAD && (type) <= TSDB_FILE_TYPE_META)
 
+STsdbFileH *tsdbInitFile(char *dataDir, int32_t daysPerFile, int32_t keep, int32_t minRowsPerFBlock,
+                         int32_t maxRowsPerFBlock);
+void        tsdbCloseFile(STsdbFileH *pFileH);
+
 char *tsdbGetFileName(char *dirName, char *fname, TSDB_FILE_TYPE type);
 
 #ifdef __cplusplus
diff --git a/src/vnode/tsdb/inc/tsdbMeta.h b/src/vnode/tsdb/inc/tsdbMeta.h
index be7c7d0406770ba143d847be5f3bb4c411d3260c..de29dc86375abe08ad77c5509f0b00d8d7b1fb8e 100644
--- a/src/vnode/tsdb/inc/tsdbMeta.h
+++ b/src/vnode/tsdb/inc/tsdbMeta.h
@@ -38,11 +38,12 @@ typedef struct STable {
   TSDB_TABLE_TYPE type;
   STableId        tableId;
   int32_t         superUid;  // Super table UID
+  int32_t         sversion;
   STSchema *      schema;
   STSchema *      tagSchema;
   SDataRow        tagVal;
   union {
-    void *pData;   // For TSDB_NTABLE and TSDB_STABLE, it is the skiplist for cache data
+    void *pData;   // For TSDB_NORMAL_TABLE and TSDB_CHILD_TABLE, it is the skiplist for cache data
     void *pIndex;  // For TSDB_SUPER_TABLE, it is the skiplist index
   } content;
   void *         eventHandler;   // TODO
diff --git a/src/vnode/tsdb/src/tsdbFile.c b/src/vnode/tsdb/src/tsdbFile.c
index b977a51b51481294871413390641c90559b9cdff..301f2978030b9fb69bca4cd5eb1f5356686fa6eb 100644
--- a/src/vnode/tsdb/src/tsdbFile.c
+++ b/src/vnode/tsdb/src/tsdbFile.c
@@ -14,9 +14,21 @@
  */
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
+#include <dirent.h>
 
 #include "tsdbFile.h"
+#include "tglobalcfg.h"
+
+// int64_t tsMsPerDay[] = {
+//     86400000L,       // TSDB_PRECISION_MILLI
+//     86400000000L,    // TSDB_PRECISION_MICRO
+//     86400000000000L  // TSDB_PRECISION_NANO
+// };
+
+#define tsdbGetKeyFileId(key, daysPerFile, precision) ((key) / tsMsPerDay[(precision)] / (daysPerFile))
+#define tsdbGetMaxNumOfFiles(keep, daysPerFile) ((keep) / (daysPerFile) + 3)
 
 typedef struct {
   int64_t offset;
@@ -71,6 +83,55 @@ const char *tsdbFileSuffix[] = {
     ".meta"   // TSDB_FILE_TYPE_META
 };
 
+/**
+ * Initialize the TSDB file handle
+ */
+STsdbFileH *tsdbInitFile(char *dataDir, int32_t daysPerFile, int32_t keep, int32_t minRowsPerFBlock,
+                         int32_t maxRowsPerFBlock) {
+  STsdbFileH *pTsdbFileH =
+      (STsdbFileH *)calloc(1, sizeof(STsdbFileH) + sizeof(SFileGroup) * tsdbGetMaxNumOfFiles(keep, daysPerFile));
+  if (pTsdbFileH == NULL) return NULL;
+
+  pTsdbFileH->daysPerFile = daysPerFile;
+  pTsdbFileH->keep = keep;
+  pTsdbFileH->minRowPerFBlock = minRowsPerFBlock;
+  pTsdbFileH->maxRowsPerFBlock = maxRowsPerFBlock;
+
+  // Open the directory to read information of each file
+  DIR *dir = opendir(dataDir);
+  if (dir == NULL) {
+    free(pTsdbFileH);
+    return NULL;
+  }
+
+  struct dirent *dp;
+  char fname[256];
+  while ((dp = readdir(dir)) != NULL) {
+    if (strncmp(dp->d_name, ".", 1) == 0 || strncmp(dp->d_name, "..", 2) == 0) continue;
+    if (true /* check if the file is the .head file */) {
+      int fileId = 0;
+      int vgId = 0;
+      sscanf(dp->d_name, "v%df%d.head", &vgId, &fileId);
+      // TODO
+
+      // Open head file
+
+      // Open data file
+
+      // Open last file
+    }
+  }
+
+  return pTsdbFileH;
+}
+
+/**
+ * Closet the file handle
+ */
+void tsdbCloseFile(STsdbFileH *pFileH) {
+  // TODO
+}
+
 char *tsdbGetFileName(char *dirName, char *fname, TSDB_FILE_TYPE type) {
   if (!IS_VALID_TSDB_FILE_TYPE(type)) return NULL;
 
@@ -79,4 +140,10 @@ char *tsdbGetFileName(char *dirName, char *fname, TSDB_FILE_TYPE type) {
 
   sprintf(fileName, "%s/%s%s", dirName, fname, tsdbFileSuffix[type]);
   return fileName;
+}
+
+static void tsdbGetKeyRangeOfFileId(int32_t daysPerFile, int8_t precision, int32_t fileId, TSKEY *minKey,
+                                    TSKEY *maxKey) {
+  *minKey = fileId * daysPerFile * tsMsPerDay[precision];
+  *maxKey = *minKey + daysPerFile * tsMsPerDay[precision] - 1;
 }
\ No newline at end of file
diff --git a/src/vnode/tsdb/src/tsdbMain.c b/src/vnode/tsdb/src/tsdbMain.c
index 0f70875c635feb05f2bac8e0b7261cc74cf04b07..2ca7b9a940345f3a92ec8d94be1644b4f8c7bf0c 100644
--- a/src/vnode/tsdb/src/tsdbMain.c
+++ b/src/vnode/tsdb/src/tsdbMain.c
@@ -308,7 +308,6 @@ int tsdbAlterTable(tsdb_repo_t *pRepo, STableCfg *pCfg) {
 }
 
 int tsdbDropTable(tsdb_repo_t *repo, STableId tableId) {
-  // TODO
   if (repo == NULL) return -1;
   STsdbRepo *pRepo = (STsdbRepo *)repo;
 
@@ -340,7 +339,7 @@ int32_t tsdbInsertData(tsdb_repo_t *repo, SSubmitMsg *pMsg) {
  */
 int tsdbInitTableCfg(STableCfg *config, TSDB_TABLE_TYPE type, int64_t uid, int32_t tid) {
   if (config == NULL) return -1;
-  if (type != TSDB_NTABLE && type != TSDB_STABLE) return -1;
+  if (type != TSDB_NORMAL_TABLE && type != TSDB_CHILD_TABLE) return -1;
 
   memset((void *)config, 0, sizeof(STableCfg));
 
@@ -355,7 +354,7 @@ int tsdbInitTableCfg(STableCfg *config, TSDB_TABLE_TYPE type, int64_t uid, int32
  * Set the super table UID of the created table
  */
 int tsdbTableSetSuperUid(STableCfg *config, int64_t uid) {
-  if (config->type != TSDB_STABLE) return -1;
+  if (config->type != TSDB_CHILD_TABLE) return -1;
   if (uid == TSDB_INVALID_SUPER_TABLE_ID) return -1;
 
   config->superUid = uid;
@@ -388,7 +387,7 @@ int tsdbTableSetSchema(STableCfg *config, STSchema *pSchema, bool dup) {
  * @return 0 for success and -1 for failure
  */
 int tsdbTableSetTagSchema(STableCfg *config, STSchema *pSchema, bool dup) {
-  if (config->type != TSDB_STABLE) return -1;
+  if (config->type != TSDB_CHILD_TABLE) return -1;
 
   if (dup) {
     config->tagSchema = tdDupSchema(pSchema);
@@ -399,7 +398,7 @@ int tsdbTableSetTagSchema(STableCfg *config, STSchema *pSchema, bool dup) {
 }
 
 int tsdbTableSetTagValue(STableCfg *config, SDataRow row, bool dup) {
-  if (config->type != TSDB_STABLE) return -1;
+  if (config->type != TSDB_CHILD_TABLE) return -1;
 
   if (dup) {
     config->tagValues = tdDataRowDup(row);
diff --git a/src/vnode/tsdb/src/tsdbMeta.c b/src/vnode/tsdb/src/tsdbMeta.c
index 5c5c5c50f0b83b7ec41c81443a9323f0bbd8727f..3277476aa19559f0f9ee2feea059577f6353c44b 100644
--- a/src/vnode/tsdb/src/tsdbMeta.c
+++ b/src/vnode/tsdb/src/tsdbMeta.c
@@ -18,6 +18,7 @@ static int     tsdbAddTableIntoMap(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbRemoveTableFromIndex(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbEstimateTableEncodeSize(STable *pTable);
+static char *  getTupleKey(const void *data);
 
 /**
  * Encode a TSDB table object as a binary content
@@ -137,7 +138,7 @@ int32_t tsdbCreateTableImpl(STsdbMeta *pMeta, STableCfg *pCfg) {
   STable *super = NULL;
   int newSuper = 0;
 
-  if (pCfg->type == TSDB_STABLE) { 
+  if (pCfg->type == TSDB_CHILD_TABLE) {
     super = tsdbGetTableByUid(pMeta, pCfg->superUid);
     if (super == NULL) {  // super table not exists, try to create it
       newSuper = 1;
@@ -153,7 +154,7 @@ int32_t tsdbCreateTableImpl(STsdbMeta *pMeta, STableCfg *pCfg) {
       super->tagSchema = tdDupSchema(pCfg->tagSchema);
       super->tagVal = tdDataRowDup(pCfg->tagValues);
       super->content.pIndex = tSkipListCreate(TSDB_SUPER_TABLE_SL_LEVEL, TSDB_DATA_TYPE_TIMESTAMP, sizeof(int64_t), 1,
-                                                0, NULL);  // Allow duplicate key, no lock
+                                                0, getTupleKey);  // Allow duplicate key, no lock
 
       if (super->content.pIndex == NULL) {
         tdFreeSchema(super->schema);
@@ -174,16 +175,16 @@ int32_t tsdbCreateTableImpl(STsdbMeta *pMeta, STableCfg *pCfg) {
   }
 
   table->tableId = pCfg->tableId;
-  if (IS_CREATE_STABLE(pCfg)) { // TSDB_STABLE
-    table->type = TSDB_STABLE;
+  if (IS_CREATE_STABLE(pCfg)) { // TSDB_CHILD_TABLE
+    table->type = TSDB_CHILD_TABLE;
     table->superUid = pCfg->superUid;
     table->tagVal = tdDataRowDup(pCfg->tagValues);
-  } else { // TSDB_NTABLE
-    table->type = TSDB_NTABLE;
+  } else { // TSDB_NORMAL_TABLE
+    table->type = TSDB_NORMAL_TABLE;
     table->superUid = -1;
     table->schema = tdDupSchema(pCfg->schema);
   }
-  table->content.pData = tSkipListCreate(TSDB_SUPER_TABLE_SL_LEVEL, 0, 8, 0, 0, NULL);
+  table->content.pData = tSkipListCreate(TSDB_SUPER_TABLE_SL_LEVEL, TSDB_DATA_TYPE_TIMESTAMP, TYPE_BYTES[TSDB_DATA_TYPE_TIMESTAMP], 0, 0, getTupleKey);
 
   if (newSuper) tsdbAddTableToMeta(pMeta, super);
   tsdbAddTableToMeta(pMeta, table);
@@ -220,7 +221,7 @@ int32_t tsdbDropTableImpl(STsdbMeta *pMeta, STableId tableId) {
     pMeta->tables[pTable->tableId.tid] = NULL;
     pMeta->nTables--;
     assert(pMeta->nTables >= 0);
-    if (pTable->type == TSDB_STABLE) {
+    if (pTable->type == TSDB_CHILD_TABLE) {
       tsdbRemoveTableFromIndex(pMeta, pTable);
     }
 
@@ -237,7 +238,7 @@ int32_t tsdbInsertRowToTableImpl(SSkipListNode *pNode, STable *pTable) {
 
 static int tsdbFreeTable(STable *pTable) {
   // TODO: finish this function
-  if (pTable->type == TSDB_STABLE) {
+  if (pTable->type == TSDB_CHILD_TABLE) {
     tdFreeDataRow(pTable->tagVal);
   } else {
     tdFreeSchema(pTable->schema);
@@ -281,7 +282,7 @@ static int tsdbAddTableToMeta(STsdbMeta *pMeta, STable *pTable) {
   } else {
     // add non-super table to the array
     pMeta->tables[pTable->tableId.tid] = pTable;
-    if (pTable->type == TSDB_STABLE) {
+    if (pTable->type == TSDB_CHILD_TABLE) {
       // add STABLE to the index
       tsdbAddTableIntoIndex(pMeta, pTable);
     }
@@ -305,13 +306,13 @@ static int tsdbAddTableIntoMap(STsdbMeta *pMeta, STable *pTable) {
   return 0;
 }
 static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable) {
-  assert(pTable->type == TSDB_STABLE);
+  assert(pTable->type == TSDB_CHILD_TABLE);
   // TODO
   return 0;
 }
 
 static int tsdbRemoveTableFromIndex(STsdbMeta *pMeta, STable *pTable) {
-  assert(pTable->type == TSDB_STABLE);
+  assert(pTable->type == TSDB_CHILD_TABLE);
   // TODO
   return 0;
 }
@@ -319,4 +320,10 @@ static int tsdbRemoveTableFromIndex(STsdbMeta *pMeta, STable *pTable) {
 static int tsdbEstimateTableEncodeSize(STable *pTable) {
   // TODO
   return 0;
+}
+
+static char *getTupleKey(const void * data) {
+  SDataRow row = (SDataRow)data;
+
+  return dataRowAt(row, TD_DATA_ROW_HEAD_SIZE);
 }
\ No newline at end of file
diff --git a/src/vnode/tsdb/src/tsdbMetaFile.c b/src/vnode/tsdb/src/tsdbMetaFile.c
index ee173d7d7169b19d007eb5cc8eeb37644ec13ed7..70ae0611068dfd9e743524153c9a878b6bcad432 100644
--- a/src/vnode/tsdb/src/tsdbMetaFile.c
+++ b/src/vnode/tsdb/src/tsdbMetaFile.c
@@ -83,7 +83,7 @@ int32_t tsdbInsertMetaRecord(SMetaFile *mfh, int64_t uid, void *cont, int32_t co
   }
 
   // TODO: make below a function to implement
-  if (fseek(mfh->fd, info.offset, SEEK_CUR) < 0) {
+  if (lseek(mfh->fd, info.offset, SEEK_CUR) < 0) {
     return -1;
   }
 
@@ -114,7 +114,7 @@ int32_t tsdbDeleteMetaRecord(SMetaFile *mfh, int64_t uid) {
   // Remove record from file
 
   info.offset = -info.offset;
-  if (fseek(mfh->fd, -info.offset, SEEK_CUR) < 0) {
+  if (lseek(mfh->fd, -info.offset, SEEK_CUR) < 0) {
     return -1;
   }
 
@@ -149,7 +149,7 @@ int32_t tsdbUpdateMetaRecord(SMetaFile *mfh, int64_t uid, void *cont, int32_t co
 
     mfh->size += contLen;
   }
-  if (fseek(mfh->fd, -info.offset, SEEK_CUR) < 0) {
+  if (lseek(mfh->fd, -info.offset, SEEK_CUR) < 0) {
     return -1;
   }
 
@@ -212,7 +212,7 @@ static int tsdbRestoreFromMetaFile(char *fname, SMetaFile *mfh) {
     return -1;
   }
 
-  if (fseek(fd, TSDB_META_FILE_HEADER_SIZE, SEEK_SET) < 0) {
+  if (lseek(fd, TSDB_META_FILE_HEADER_SIZE, SEEK_SET) < 0) {
     // TODO: deal with the error
     close(fd);
     return -1;
diff --git a/src/vnode/tsdb/tests/tsdbTests.cpp b/src/vnode/tsdb/tests/tsdbTests.cpp
index 7b09fdfcdebc0828b08e22f30157a413a553b3ab..5ce25d2fd7dd88fb6d8dbfed3eda0333a3e172e5 100644
--- a/src/vnode/tsdb/tests/tsdbTests.cpp
+++ b/src/vnode/tsdb/tests/tsdbTests.cpp
@@ -15,7 +15,7 @@ TEST(TsdbTest, createRepo) {
   // 2. Create a normal table
   STableCfg tCfg;
   ASSERT_EQ(tsdbInitTableCfg(&tCfg, TSDB_SUPER_TABLE, 987607499877672L, 0), -1);
-  ASSERT_EQ(tsdbInitTableCfg(&tCfg, TSDB_NTABLE, 987607499877672L, 0), 0);
+  ASSERT_EQ(tsdbInitTableCfg(&tCfg, TSDB_NORMAL_TABLE, 987607499877672L, 0), 0);
 
   int       nCols = 5;
   STSchema *schema = tdNewSchema(nCols);
@@ -48,7 +48,7 @@ TEST(TsdbTest, createRepo) {
 
     for (int j = 0; j < schemaNCols(schema); j++) {
       if (j == 0) { // Just for timestamp
-        tdAppendColVal(row, (void *)(&time), schemaColAt(schema, j));
+        tdAppendColVal(row, (void *)(&ttime), schemaColAt(schema, j));
       } else { // For int
         int val = 10;
         tdAppendColVal(row, (void *)(&val), schemaColAt(schema, j));
@@ -61,5 +61,7 @@ TEST(TsdbTest, createRepo) {
   pMsg->length = pMsg->length + sizeof(SSubmitBlk) + pBlock->len;
 
   tsdbInsertData(pRepo, pMsg);
+
+  int k = 0;
 }