diff --git a/src/client/src/tscAsync.c b/src/client/src/tscAsync.c
index 45d3d3caa3b507eb99bac332b99fb8f4c6423d84..da24e3691a43b887afe71fbb02eb526fde70f6b0 100644
--- a/src/client/src/tscAsync.c
+++ b/src/client/src/tscAsync.c
@@ -471,7 +471,7 @@ void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
         }
 
         // in case of insert, redo parsing the sql string and build new submit data block for two reasons:
-        // 1. the table Id(tid & uid) may have been update, the submit block needs to be updated
+        // 1. the table Id(tid & uid) may have been update, the submit block needs to be updated accordingly.
         // 2. vnode may need the schema information along with submit block to update its local table schema.
         if (pCmd->command == TSDB_SQL_INSERT) {
           tscDebug("%p redo parse sql string to build submit block", pSql);
diff --git a/src/client/src/tscSQLParser.c b/src/client/src/tscSQLParser.c
index 22e91bd658d5769e80163dea3388e567294ae6c5..ea88e4a935159d59a439d0f0218ef247803ea1ed 100644
--- a/src/client/src/tscSQLParser.c
+++ b/src/client/src/tscSQLParser.c
@@ -4490,7 +4490,7 @@ int32_t setAlterTableInfo(SSqlObj* pSql, struct SSqlInfo* pInfo) {
     pUpdateMsg->tid       = htonl(pTableMeta->sid);
     pUpdateMsg->uid       = htobe64(pTableMeta->uid);
     pUpdateMsg->colId     = htons(pTagsSchema->colId);
-    pUpdateMsg->type      = htons(pTagsSchema->type);
+    pUpdateMsg->type      = pTagsSchema->type;
     pUpdateMsg->bytes     = htons(pTagsSchema->bytes);
     pUpdateMsg->tversion  = htons(pTableMeta->tversion);
     pUpdateMsg->numOfTags = htons(numOfTags);
diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index d73983e77c704e66c1c0cf491c6b8205d749a570..584e70ba6c5cee0527af66003e1bf21797bbf93a 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -247,7 +247,7 @@ void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcIpSet *pIpSet) {
   } else {
     STableMetaInfo *pTableMetaInfo = tscGetTableMetaInfoFromCmd(pCmd, pCmd->clauseIndex, 0);
     if (rpcMsg->code == TSDB_CODE_TDB_INVALID_TABLE_ID || rpcMsg->code == TSDB_CODE_VND_INVALID_VGROUP_ID || 
-        rpcMsg->code == TSDB_CODE_RPC_NETWORK_UNAVAIL) {
+        rpcMsg->code == TSDB_CODE_RPC_NETWORK_UNAVAIL || rpcMsg->code == TSDB_CODE_TDB_TABLE_RECONFIGURE) {
       if (pCmd->command == TSDB_SQL_CONNECT) {
         rpcMsg->code = TSDB_CODE_RPC_NETWORK_UNAVAIL;
         rpcFreeCont(rpcMsg->pCont);
@@ -260,7 +260,12 @@ void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcIpSet *pIpSet) {
         // get table meta query will not retry, do nothing
       } else {
         tscWarn("%p it shall renew table meta, code:%s, retry:%d", pSql, tstrerror(rpcMsg->code), ++pSql->retry);
-        
+
+        // set the flag to denote that sql string needs to be re-parsed and build submit block with table schema
+        if (rpcMsg->code == TSDB_CODE_TDB_TABLE_RECONFIGURE) {
+          pSql->cmd.submitSchema = 1;
+        }
+
         pSql->res.code = rpcMsg->code;  // keep the previous error code
         if (pSql->retry > pSql->maxRetry) {
           tscError("%p max retry %d reached, give up", pSql, pSql->maxRetry);
diff --git a/src/client/src/tscUtil.c b/src/client/src/tscUtil.c
index 9b6eff71232f609c18d02ab34c0c3d2ccf76312d..791073f7a8b5f00af93b5c35fc1f778907471537 100644
--- a/src/client/src/tscUtil.c
+++ b/src/client/src/tscUtil.c
@@ -579,9 +579,9 @@ static int trimDataBlock(void* pDataBlock, STableDataBlocks* pTableDataBlock, bo
     int32_t numOfCols = tscGetNumOfColumns(pTableDataBlock->pTableMeta);
     for(int32_t j = 0; j < numOfCols; ++j) {
       STColumn* pCol = (STColumn*) pDataBlock;
-      pCol->colId = pSchema[j].colId;
+      pCol->colId = htons(pSchema[j].colId);
       pCol->type  = pSchema[j].type;
-      pCol->bytes = pSchema[j].bytes;
+      pCol->bytes = htons(pSchema[j].bytes);
       pCol->offset = 0;
 
       pDataBlock += sizeof(STColumn);
@@ -663,7 +663,7 @@ int32_t tscMergeTableDataBlocks(SSqlObj* pSql, SArray* pTableDataBlockList) {
     }
 
     SSubmitBlk* pBlocks = (SSubmitBlk*) pOneTableBlock->pData;
-    int64_t destSize = dataBuf->size + pOneTableBlock->size + pBlocks->numOfRows * expandSize;
+    int64_t destSize = dataBuf->size + pOneTableBlock->size + pBlocks->numOfRows * expandSize + sizeof(STColumn) * tscGetNumOfColumns(pOneTableBlock->pTableMeta);
 
     if (dataBuf->nAllocSize < destSize) {
       while (dataBuf->nAllocSize < destSize) {
@@ -691,7 +691,7 @@ int32_t tscMergeTableDataBlocks(SSqlObj* pSql, SArray* pTableDataBlockList) {
     tscDebug("%p tableId:%s, sid:%d rows:%d sversion:%d skey:%" PRId64 ", ekey:%" PRId64, pSql, pOneTableBlock->tableId,
         pBlocks->tid, pBlocks->numOfRows, pBlocks->sversion, GET_INT64_VAL(pBlocks->data), GET_INT64_VAL(ekey));
 
-    int32_t len = pBlocks->numOfRows * (pOneTableBlock->rowSize + expandSize);
+    int32_t len = pBlocks->numOfRows * (pOneTableBlock->rowSize + expandSize) + sizeof(STColumn) * tscGetNumOfColumns(pOneTableBlock->pTableMeta);
 
     pBlocks->tid = htonl(pBlocks->tid);
     pBlocks->uid = htobe64(pBlocks->uid);
diff --git a/src/inc/taoserror.h b/src/inc/taoserror.h
index 4a7d86c43426bcbbde18e52e2bedf6b5d56fab48..6139d4bf49baedcdb570312b1f817d6f4873a038 100644
--- a/src/inc/taoserror.h
+++ b/src/inc/taoserror.h
@@ -200,6 +200,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_TDB_INVALID_ACTION,           0, 0x060D, "tsdb inval
 TAOS_DEFINE_ERROR(TSDB_CODE_TDB_INVALID_CREATE_TB_MSG,    0, 0x060E, "tsdb invalid create table message")
 TAOS_DEFINE_ERROR(TSDB_CODE_TDB_NO_TABLE_DATA_IN_MEM,     0, 0x060F, "tsdb no table data in memory skiplist")
 TAOS_DEFINE_ERROR(TSDB_CODE_TDB_FILE_ALREADY_EXISTS,      0, 0x0610, "tsdb file already exists")
+TAOS_DEFINE_ERROR(TSDB_CODE_TDB_TABLE_RECONFIGURE,        0, 0x0611, "tsdb need to reconfigure table")
 
 // query
 TAOS_DEFINE_ERROR(TSDB_CODE_QRY_INVALID_QHANDLE,          0, 0x0700, "query invalid handle")
diff --git a/src/inc/taosmsg.h b/src/inc/taosmsg.h
index 184979797026d45e627f8d39716b8d3827c83ec7..8c987b6ef18750c2f422bd53684cc6fcd89ef0c7 100644
--- a/src/inc/taosmsg.h
+++ b/src/inc/taosmsg.h
@@ -203,8 +203,7 @@ typedef struct SSubmitBlk {
 typedef struct SSubmitMsg {
   SMsgHead   header;
   int32_t    length;
-  int32_t    compressed : 2;
-  int32_t    numOfBlocks : 30;
+  int32_t    numOfBlocks;
   SSubmitBlk blocks[];
 } SSubmitMsg;
 
@@ -285,7 +284,7 @@ typedef struct {
   int32_t   tid;
   int16_t   tversion;
   int16_t   colId;
-  int16_t   type;
+  int8_t    type;
   int16_t   bytes;
   int32_t   tagValLen;
   int16_t   numOfTags;
diff --git a/src/inc/tsdb.h b/src/inc/tsdb.h
index f68caf1a6063d9dcacfa29ecdb067ea2369d7b43..a599f100f913e0243e19d77d210bf1a35a8e6c6e 100644
--- a/src/inc/tsdb.h
+++ b/src/inc/tsdb.h
@@ -115,7 +115,7 @@ STableCfg *tsdbCreateTableCfgFromMsg(SMDCreateTableMsg *pMsg);
 
 int   tsdbCreateTable(TSDB_REPO_T *repo, STableCfg *pCfg);
 int   tsdbDropTable(TSDB_REPO_T *pRepo, STableId tableId);
-int   tsdbUpdateTagValue(TSDB_REPO_T *repo, SUpdateTableTagValMsg *pMsg);
+int   tsdbUpdateTableTagValue(TSDB_REPO_T *repo, SUpdateTableTagValMsg *pMsg);
 TSKEY tsdbGetTableLastKey(TSDB_REPO_T *repo, uint64_t uid);
 void  tsdbStartStream(TSDB_REPO_T *repo);
 
diff --git a/src/tsdb/inc/tsdbMain.h b/src/tsdb/inc/tsdbMain.h
index e1bed0125518e038f6e328c50462486babd38b8a..d856650b0ee245bdd132e4e3fb22e25dfb8aa40a 100644
--- a/src/tsdb/inc/tsdbMain.h
+++ b/src/tsdb/inc/tsdbMain.h
@@ -294,16 +294,62 @@ typedef struct {
 #define TABLE_SUID(t) (t)->suid
 #define TABLE_LASTKEY(t) (t)->lastKey
 
-static FORCE_INLINE STSchema *tsdbGetTableSchema(STable *pTable) {
-  if (pTable->type == TSDB_CHILD_TABLE) {  // check child table first
-    STable *pSuper = pTable->pSuper;
-    if (pSuper == NULL) return NULL;
-    return pSuper->schema[pSuper->numOfSchemas - 1];
-  } else if (pTable->type == TSDB_NORMAL_TABLE || pTable->type == TSDB_SUPER_TABLE || pTable->type == TSDB_STREAM_TABLE) {
-    return pTable->schema[pTable->numOfSchemas - 1];
+STsdbMeta* tsdbNewMeta(STsdbCfg* pCfg);
+void       tsdbFreeMeta(STsdbMeta* pMeta);
+int        tsdbOpenMeta(STsdbRepo* pRepo);
+int        tsdbCloseMeta(STsdbRepo* pRepo);
+STable*    tsdbGetTableByUid(STsdbMeta* pMeta, uint64_t uid);
+STSchema*  tsdbGetTableSchemaByVersion(STable* pTable, int16_t version);
+int        tsdbWLockRepoMeta(STsdbRepo* pRepo);
+int        tsdbRLockRepoMeta(STsdbRepo* pRepo);
+int        tsdbUnlockRepoMeta(STsdbRepo* pRepo);
+void       tsdbRefTable(STable* pTable);
+void       tsdbUnRefTable(STable* pTable);
+void       tsdbUpdateTableSchema(STsdbRepo* pRepo, STable* pTable, STSchema* pSchema, bool insertAct);
+
+static FORCE_INLINE int tsdbCompareSchemaVersion(const void *key1, const void *key2) {
+  if (*(int16_t *)key1 < schemaVersion(*(STSchema **)key2)) {
+    return -1;
+  } else if (*(int16_t *)key1 > schemaVersion(*(STSchema **)key2)) {
+    return 1;
   } else {
-    return NULL;
+    return 0;
+  }
+}
+
+static FORCE_INLINE STSchema* tsdbGetTableSchemaImpl(STable* pTable, bool lock, bool copy, int16_t version) {
+  STable*   pDTable = (TABLE_TYPE(pTable) == TSDB_CHILD_TABLE) ? pTable->pSuper : pTable;
+  STSchema* pSchema = NULL;
+  STSchema* pTSchema = NULL;
+
+  if (lock) taosRLockLatch(&(pDTable->latch));
+  if (version < 0) {  // get the latest version of schema
+    pTSchema = pDTable->schema[pDTable->numOfSchemas - 1];
+  } else {  // get the schema with version
+    void* ptr = taosbsearch(&version, pDTable->schema, pDTable->numOfSchemas, sizeof(STSchema*),
+                            tsdbCompareSchemaVersion, TD_EQ);
+    if (ptr == NULL) {
+      terrno = TSDB_CODE_TDB_IVD_TB_SCHEMA_VERSION;
+      goto _exit;
+    }
+    pTSchema = *(STSchema**)ptr;
   }
+
+  ASSERT(pTSchema != NULL);
+
+  if (copy) {
+    if ((pSchema = tdDupSchema(pTSchema)) == NULL) terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+  } else {
+    pSchema = pTSchema;
+  }
+
+_exit:
+  if (lock) taosRUnLockLatch(&(pDTable->latch));
+  return pSchema;
+}
+
+static FORCE_INLINE STSchema* tsdbGetTableSchema(STable* pTable) {
+  return tsdbGetTableSchemaImpl(pTable, false, false, -1);
 }
 
 static FORCE_INLINE STSchema *tsdbGetTableTagSchema(STable *pTable) {
@@ -318,19 +364,6 @@ static FORCE_INLINE STSchema *tsdbGetTableTagSchema(STable *pTable) {
   }
 }
 
-STsdbMeta* tsdbNewMeta(STsdbCfg* pCfg);
-void       tsdbFreeMeta(STsdbMeta* pMeta);
-int        tsdbOpenMeta(STsdbRepo* pRepo);
-int        tsdbCloseMeta(STsdbRepo* pRepo);
-STable*    tsdbGetTableByUid(STsdbMeta* pMeta, uint64_t uid);
-STSchema*  tsdbGetTableSchemaByVersion(STable* pTable, int16_t version);
-int        tsdbUpdateTable(STsdbRepo* pRepo, STable* pTable, STableCfg* pCfg);
-int        tsdbWLockRepoMeta(STsdbRepo* pRepo);
-int        tsdbRLockRepoMeta(STsdbRepo* pRepo);
-int        tsdbUnlockRepoMeta(STsdbRepo* pRepo);
-void       tsdbRefTable(STable* pTable);
-void       tsdbUnRefTable(STable* pTable);
-
 // ------------------ tsdbBuffer.c
 STsdbBufPool* tsdbNewBufPool();
 void          tsdbFreeBufPool(STsdbBufPool* pBufPool);
diff --git a/src/tsdb/src/tsdbMain.c b/src/tsdb/src/tsdbMain.c
index 4b9e977a1b741c6998b3c6bca8b7e7ec2cae6a27..6b3160070514b13d8b3b961854346d98d2b400a3 100644
--- a/src/tsdb/src/tsdbMain.c
+++ b/src/tsdb/src/tsdbMain.c
@@ -41,9 +41,9 @@ typedef struct {
 } SSubmitBlkIter;
 
 typedef struct {
-  int32_t     totalLen;
-  int32_t     len;
-  SSubmitBlk *pBlock;
+  int32_t totalLen;
+  int32_t len;
+  void *  pMsg;
 } SSubmitMsgIter;
 
 static int32_t     tsdbCheckAndSetDefaultCfg(STsdbCfg *pCfg);
@@ -56,7 +56,7 @@ static STsdbRepo * tsdbNewRepo(char *rootDir, STsdbAppH *pAppH, STsdbCfg *pCfg);
 static void        tsdbFreeRepo(STsdbRepo *pRepo);
 static int         tsdbInitSubmitMsgIter(SSubmitMsg *pMsg, SSubmitMsgIter *pIter);
 static int32_t     tsdbInsertDataToTable(STsdbRepo *pRepo, SSubmitBlk *pBlock, TSKEY now, int32_t *affectedrows);
-static SSubmitBlk *tsdbGetSubmitMsgNext(SSubmitMsgIter *pIter);
+static int         tsdbGetSubmitMsgNext(SSubmitMsgIter *pIter, SSubmitBlk **pPBlock);
 static SDataRow    tsdbGetSubmitBlkNext(SSubmitBlkIter *pIter);
 static int         tsdbRestoreInfo(STsdbRepo *pRepo);
 static int         tsdbInitSubmitBlkIter(SSubmitBlk *pBlock, SSubmitBlkIter *pIter);
@@ -68,6 +68,7 @@ static int         keyFGroupCompFunc(const void *key, const void *fgroup);
 static int         tsdbEncodeCfg(void **buf, STsdbCfg *pCfg);
 static void *      tsdbDecodeCfg(void *buf, STsdbCfg *pCfg);
 static int         tsdbCheckTableSchema(STsdbRepo *pRepo, SSubmitBlk *pBlock, STable *pTable);
+static int         tsdbScanAndConvertSubmitMsg(STsdbRepo *pRepo, SSubmitMsg *pMsg);
 
 // Function declaration
 int32_t tsdbCreateRepo(char *rootDir, STsdbCfg *pCfg) {
@@ -164,6 +165,13 @@ int32_t tsdbInsertData(TSDB_REPO_T *repo, SSubmitMsg *pMsg, SShellSubmitRspMsg *
   STsdbRepo *    pRepo = (STsdbRepo *)repo;
   SSubmitMsgIter msgIter = {0};
 
+  if (tsdbScanAndConvertSubmitMsg(pRepo, pMsg) < 0) {
+    if (terrno != TSDB_CODE_TDB_TABLE_RECONFIGURE) {
+      tsdbError("vgId:%d failed to insert data since %s", REPO_ID(pRepo), tstrerror(terrno));
+    }
+    return -1;
+  }
+
   if (tsdbInitSubmitMsgIter(pMsg, &msgIter) < 0) {
     tsdbError("vgId:%d failed to insert data since %s", REPO_ID(pRepo), tstrerror(terrno));
     return -1;
@@ -173,12 +181,14 @@ int32_t tsdbInsertData(TSDB_REPO_T *repo, SSubmitMsg *pMsg, SShellSubmitRspMsg *
   int32_t     affectedrows = 0;
 
   TSKEY now = taosGetTimestamp(pRepo->config.precision);
-
-  while ((pBlock = tsdbGetSubmitMsgNext(&msgIter)) != NULL) {
+  while (true) {
+    tsdbGetSubmitMsgNext(&msgIter, &pBlock);
+    if (pBlock == NULL) break;
     if (tsdbInsertDataToTable(pRepo, pBlock, now, &affectedrows) < 0) {
       return -1;
     }
   }
+
   if (pRsp != NULL) pRsp->affectedRows = htonl(affectedrows);
   return 0;
 }
@@ -263,7 +273,7 @@ void tsdbStartStream(TSDB_REPO_T *repo) {
     STable *pTable = pMeta->tables[i];
     if (pTable && pTable->type == TSDB_STREAM_TABLE) {
       pTable->cqhandle = (*pRepo->appH.cqCreateFunc)(pRepo->appH.cqH, TABLE_UID(pTable), TABLE_TID(pTable), pTable->sql,
-                                                     tsdbGetTableSchema(pTable));
+                                                     tsdbGetTableSchemaImpl(pTable, false, false, -1));
     }
   }
 }
@@ -694,17 +704,12 @@ static int tsdbInitSubmitMsgIter(SSubmitMsg *pMsg, SSubmitMsgIter *pIter) {
     return -1;
   }
 
-  pMsg->length = htonl(pMsg->length);
-  pMsg->numOfBlocks = htonl(pMsg->numOfBlocks);
-  pMsg->compressed = htonl(pMsg->compressed);
-
   pIter->totalLen = pMsg->length;
-  pIter->len = TSDB_SUBMIT_MSG_HEAD_SIZE;
+  pIter->len = 0;
+  pIter->pMsg = pMsg;
   if (pMsg->length <= TSDB_SUBMIT_MSG_HEAD_SIZE) {
     terrno = TSDB_CODE_TDB_SUBMIT_MSG_MSSED_UP;
     return -1;
-  } else {
-    pIter->pBlock = pMsg->blocks;
   }
 
   return 0;
@@ -714,26 +719,8 @@ static int32_t tsdbInsertDataToTable(STsdbRepo *pRepo, SSubmitBlk *pBlock, TSKEY
   STsdbMeta *pMeta = pRepo->tsdbMeta;
   int64_t    points = 0;
 
-  STable *pTable = tsdbGetTableByUid(pMeta, pBlock->uid);
-  if (pTable == NULL || TABLE_TID(pTable) != pBlock->tid) {
-    tsdbError("vgId:%d failed to get table to insert data, uid %" PRIu64 " tid %d", REPO_ID(pRepo), pBlock->uid,
-              pBlock->tid);
-    terrno = TSDB_CODE_TDB_INVALID_TABLE_ID;
-    return -1;
-  }
-
-  if (TABLE_TYPE(pTable) == TSDB_SUPER_TABLE) {
-    tsdbError("vgId:%d invalid action trying to insert a super table %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable));
-    terrno = TSDB_CODE_TDB_INVALID_ACTION;
-    return -1;
-  }
-
-  // Check schema version and update schema if needed
-  if (tsdbCheckTableSchema(pRepo, pBlock, pTable) < 0) {
-    tsdbError("vgId:%d failed to insert data to table %s since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
-              tstrerror(terrno));
-    return -1;
-  }
+  STable *pTable = pMeta->tables[pBlock->tid];
+  ASSERT(pTable != NULL && TABLE_UID(pTable) == pBlock->uid);
 
   SSubmitBlkIter blkIter = {0};
   SDataRow       row = NULL;
@@ -764,27 +751,23 @@ static int32_t tsdbInsertDataToTable(STsdbRepo *pRepo, SSubmitBlk *pBlock, TSKEY
   return 0;
 }
 
-static SSubmitBlk *tsdbGetSubmitMsgNext(SSubmitMsgIter *pIter) {
-  SSubmitBlk *pBlock = pIter->pBlock;
-  if (pBlock == NULL) return NULL;
-
-  pBlock->dataLen = htonl(pBlock->dataLen);
-  pBlock->schemaLen = htonl(pBlock->schemaLen);
-  pBlock->numOfRows = htons(pBlock->numOfRows);
-  pBlock->uid = htobe64(pBlock->uid);
-  pBlock->tid = htonl(pBlock->tid);
-
-  pBlock->sversion = htonl(pBlock->sversion);
-  pBlock->padding = htonl(pBlock->padding);
-
-  pIter->len = pIter->len + sizeof(SSubmitBlk) + pBlock->dataLen;
-  if (pIter->len >= pIter->totalLen) {
-    pIter->pBlock = NULL;
+static int tsdbGetSubmitMsgNext(SSubmitMsgIter *pIter, SSubmitBlk **pPBlock) {
+  if (pIter->len == 0) {
+    pIter->len += TSDB_SUBMIT_MSG_HEAD_SIZE;
   } else {
-    pIter->pBlock = (SSubmitBlk *)((char *)pBlock + pBlock->dataLen + sizeof(SSubmitBlk));
+    SSubmitBlk *pSubmitBlk = (SSubmitBlk *)POINTER_SHIFT(pIter->pMsg, pIter->len);
+    pIter->len += (sizeof(SSubmitBlk) + pSubmitBlk->dataLen + pSubmitBlk->schemaLen);
   }
 
-  return pBlock;
+  if (pIter->len > pIter->totalLen) {
+    terrno = TSDB_CODE_TDB_SUBMIT_MSG_MSSED_UP;
+    *pPBlock = NULL;
+    return -1;
+  }
+
+  *pPBlock = (pIter->len == pIter->totalLen) ? NULL : (SSubmitBlk *)POINTER_SHIFT(pIter->pMsg, pIter->len);
+
+  return 0;
 }
 
 static SDataRow tsdbGetSubmitBlkNext(SSubmitBlkIter *pIter) {
@@ -969,42 +952,64 @@ static void *tsdbDecodeCfg(void *buf, STsdbCfg *pCfg) {
 static int tsdbCheckTableSchema(STsdbRepo *pRepo, SSubmitBlk *pBlock, STable *pTable) {
   ASSERT(pTable != NULL);
 
-  STSchema *pSchema = tsdbGetTableSchema(pTable);
+  STSchema *pSchema = tsdbGetTableSchemaImpl(pTable, false, false, -1);
   int       sversion = schemaVersion(pSchema);
 
-  if (pBlock->sversion == sversion) return 0;
-  if (pBlock->sversion > sversion) {  // need to config
-    tsdbDebug("vgId:%d table %s tid %d has version %d smaller than client version %d, try to config", REPO_ID(pRepo),
-              TABLE_CHAR_NAME(pTable), TABLE_TID(pTable), sversion, pBlock->sversion);
-    if (pRepo->appH.configFunc) {
-      void *msg = (*pRepo->appH.configFunc)(REPO_ID(pRepo), TABLE_TID(pTable));
-      if (msg == NULL) {
-        tsdbError("vgId:%d failed to config table %s tid %d since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
-                  TABLE_TID(pTable), tstrerror(terrno));
+  if (pBlock->sversion == sversion) {
+    return 0;
+  } else {
+    if (TABLE_TYPE(pTable) == TSDB_STREAM_TABLE) {  // stream table is not allowed to change schema
+      terrno = TSDB_CODE_TDB_IVD_TB_SCHEMA_VERSION;
+      return -1;
+    }
+  }
+
+  if (pBlock->sversion > sversion) {  // may need to update table schema
+    if (pBlock->schemaLen > 0) {
+      tsdbDebug(
+          "vgId:%d table %s tid %d uid %" PRIu64 " schema version %d is out of data, client version %d, update...",
+          REPO_ID(pRepo), TABLE_CHAR_NAME(pTable), TABLE_TID(pTable), TABLE_UID(pTable), sversion, pBlock->sversion);
+      ASSERT(pBlock->schemaLen % sizeof(STColumn) == 0);
+      int       numOfCols = pBlock->schemaLen / sizeof(STColumn);
+      STColumn *pTCol = (STColumn *)pBlock->data;
+
+      STSchemaBuilder schemaBuilder = {0};
+      if (tdInitTSchemaBuilder(&schemaBuilder, pBlock->sversion) < 0) {
+        terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+        tsdbError("vgId:%d failed to update schema of table %s since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
+                  tstrerror(terrno));
         return -1;
       }
 
-      STableCfg *pTableCfg = tsdbCreateTableCfgFromMsg(msg);
-      if (pTableCfg == NULL) {
-        rpcFreeCont(msg);
-        return -1;
+      for (int i = 0; i < numOfCols; i++) {
+        if (tdAddColToSchema(&schemaBuilder, pTCol[i].type, htons(pTCol[i].colId), htons(pTCol[i].bytes)) < 0) {
+          terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+          tsdbError("vgId:%d failed to update schema of table %s since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
+                    tstrerror(terrno));
+          tdDestroyTSchemaBuilder(&schemaBuilder);
+          return -1;
+        }
       }
 
-      if (tsdbUpdateTable(pRepo, (TABLE_TYPE(pTable) == TSDB_CHILD_TABLE) ? pTable->pSuper : pTable, pTableCfg) < 0) {
-        tsdbError("vgId:%d failed to update table %s since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
-                  tstrerror(terrno));
-        tsdbClearTableCfg(pTableCfg);
-        rpcFreeCont(msg);
+      STSchema *pNSchema = tdGetSchemaFromBuilder(&schemaBuilder);
+      if (pNSchema == NULL) {
+        terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+        tdDestroyTSchemaBuilder(&schemaBuilder);
         return -1;
       }
-      tsdbClearTableCfg(pTableCfg);
-      rpcFreeCont(msg);
+
+      tdDestroyTSchemaBuilder(&schemaBuilder);
+      tsdbUpdateTableSchema(pRepo, pTable, pNSchema, true);
     } else {
-      terrno = TSDB_CODE_TDB_IVD_TB_SCHEMA_VERSION;
+      tsdbDebug(
+          "vgId:%d table %s tid %d uid %" PRIu64 " schema version %d is out of data, client version %d, reconfigure...",
+          REPO_ID(pRepo), TABLE_CHAR_NAME(pTable), TABLE_TID(pTable), TABLE_UID(pTable), sversion, pBlock->sversion);
+      terrno = TSDB_CODE_TDB_TABLE_RECONFIGURE;
       return -1;
     }
   } else {
-    if (tsdbGetTableSchemaByVersion(pTable, pBlock->sversion) == NULL) {
+    ASSERT(pBlock->sversion >= 0);
+    if (tsdbGetTableSchemaImpl(pTable, false, false, pBlock->sversion) == NULL) {
       tsdbError("vgId:%d invalid submit schema version %d to table %s tid %d from client", REPO_ID(pRepo),
                 pBlock->sversion, TABLE_CHAR_NAME(pTable), TABLE_TID(pTable));
     }
@@ -1013,7 +1018,64 @@ static int tsdbCheckTableSchema(STsdbRepo *pRepo, SSubmitBlk *pBlock, STable *pT
   }
 
   return 0;
- }
+}
+
+static int tsdbScanAndConvertSubmitMsg(STsdbRepo *pRepo, SSubmitMsg *pMsg) {
+  ASSERT(pMsg != NULL);
+  STsdbMeta *    pMeta = pRepo->tsdbMeta;
+  SSubmitMsgIter msgIter = {0};
+  SSubmitBlk *   pBlock = NULL;
+
+  terrno = TSDB_CODE_SUCCESS;
+  pMsg->length = htonl(pMsg->length);
+  pMsg->numOfBlocks = htonl(pMsg->numOfBlocks);
+
+  if (tsdbInitSubmitMsgIter(pMsg, &msgIter) < 0) return -1;
+  while (true) {
+    if (tsdbGetSubmitMsgNext(&msgIter, &pBlock) < 0) return -1;
+    if (pBlock == NULL) break;
+
+    pBlock->uid = htobe64(pBlock->uid);
+    pBlock->tid = htonl(pBlock->tid);
+    pBlock->sversion = htonl(pBlock->sversion);
+    pBlock->dataLen = htonl(pBlock->dataLen);
+    pBlock->schemaLen = htonl(pBlock->schemaLen);
+    pBlock->numOfRows = htons(pBlock->numOfRows);
+
+    if (pBlock->tid <= 0 || pBlock->tid >= pRepo->config.maxTables) {
+      tsdbError("vgId:%d failed to get table to insert data, uid %" PRIu64 " tid %d", REPO_ID(pRepo), pBlock->uid,
+                pBlock->tid);
+      terrno = TSDB_CODE_TDB_INVALID_TABLE_ID;
+      return -1;
+    }
+
+    STable *pTable = pMeta->tables[pBlock->tid];
+    if (pTable == NULL || TABLE_UID(pTable) != pBlock->uid) {
+      tsdbError("vgId:%d failed to get table to insert data, uid %" PRIu64 " tid %d", REPO_ID(pRepo), pBlock->uid,
+                pBlock->tid);
+      terrno = TSDB_CODE_TDB_INVALID_TABLE_ID;
+      return -1;
+    }
+
+    if (TABLE_TYPE(pTable) == TSDB_SUPER_TABLE) {
+      tsdbError("vgId:%d invalid action trying to insert a super table %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable));
+      terrno = TSDB_CODE_TDB_INVALID_ACTION;
+      return -1;
+    }
+
+    // Check schema version and update schema if needed
+    if (tsdbCheckTableSchema(pRepo, pBlock, pTable) < 0) {
+      if (terrno == TSDB_CODE_TDB_TABLE_RECONFIGURE) {
+        continue;
+      } else {
+        return -1;
+      }
+    }
+  }
+
+  if (terrno != TSDB_CODE_SUCCESS) return -1;
+  return 0;
+}
 
 static int tsdbAlterCacheTotalBlocks(STsdbRepo *pRepo, int totalBlocks) {
   // TODO
diff --git a/src/tsdb/src/tsdbMemTable.c b/src/tsdb/src/tsdbMemTable.c
index d3b9081a36b5ddc2e16a23d5e4eb7e75e19ae1c3..af86de5aa80db13054dbd0c47d343fe2cbc3e027 100644
--- a/src/tsdb/src/tsdbMemTable.c
+++ b/src/tsdb/src/tsdbMemTable.c
@@ -538,10 +538,12 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
     SCommitIter *pIter = iters + tid;
     if (pIter->pTable == NULL) continue;
 
+    taosRLockLatch(&(pIter->pTable->latch));
+
     tsdbSetHelperTable(pHelper, pIter->pTable, pRepo);
 
     if (pIter->pIter != NULL) {
-      tdInitDataCols(pDataCols, tsdbGetTableSchema(pIter->pTable));
+      tdInitDataCols(pDataCols, tsdbGetTableSchemaImpl(pIter->pTable, false, false, -1));
 
       int maxRowsToRead = pCfg->maxRowsPerFileBlock * 4 / 5;
       int nLoop = 0;
@@ -557,6 +559,7 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
         int rowsWritten = tsdbWriteDataBlock(pHelper, pDataCols);
         ASSERT(rowsWritten != 0);
         if (rowsWritten < 0) {
+          taosRUnLockLatch(&(pIter->pTable->latch));
           tsdbError("vgId:%d failed to write data block to table %s tid %d uid %" PRIu64 " since %s", REPO_ID(pRepo),
                     TABLE_CHAR_NAME(pIter->pTable), TABLE_TID(pIter->pTable), TABLE_UID(pIter->pTable),
                     tstrerror(terrno));
@@ -571,6 +574,8 @@ static int tsdbCommitToFile(STsdbRepo *pRepo, int fid, SCommitIter *iters, SRWHe
       ASSERT(pDataCols->numOfRows == 0);
     }
 
+    taosRUnLockLatch(&(pIter->pTable->latch));
+
     // Move the last block to the new .l file if neccessary
     if (tsdbMoveLastBlockIfNeccessary(pHelper) < 0) {
       tsdbError("vgId:%d, failed to move last block, since %s", REPO_ID(pRepo), tstrerror(terrno));
@@ -680,10 +685,10 @@ static int tsdbReadRowsFromCache(STsdbMeta *pMeta, STable *pTable, SSkipListIter
     if (dataRowKey(row) > maxKey) break;
 
     if (pSchema == NULL || schemaVersion(pSchema) != dataRowVersion(row)) {
-      pSchema = tsdbGetTableSchemaByVersion(pTable, dataRowVersion(row));
+      pSchema = tsdbGetTableSchemaImpl(pTable, true, false, dataRowVersion(row));
       if (pSchema == NULL) {
         // TODO: deal with the error here
-        ASSERT(false);
+        ASSERT(0);
       }
     }
 
diff --git a/src/tsdb/src/tsdbMeta.c b/src/tsdb/src/tsdbMeta.c
index 8b79d95af11f03317bc4949060b1ba3d5920f90b..9ebd63ba7e58149077fe4d69d85e394efe6b35c6 100644
--- a/src/tsdb/src/tsdbMeta.c
+++ b/src/tsdb/src/tsdbMeta.c
@@ -29,10 +29,9 @@ static void    tsdbOrgMeta(void *pHandle);
 static char *  getTagIndexKey(const void *pData);
 static STable *tsdbNewTable(STableCfg *pCfg, bool isSuper);
 static void    tsdbFreeTable(STable *pTable);
-static int     tsdbUpdateTableTagSchema(STable *pTable, STSchema *newSchema);
-static int     tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx);
+static int     tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx, bool lock);
 static void    tsdbRemoveTableFromMeta(STsdbRepo *pRepo, STable *pTable, bool rmFromIdx, bool lock);
-static int     tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable);
+static int     tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable, bool refSuper);
 static int     tsdbRemoveTableFromIndex(STsdbMeta *pMeta, STable *pTable);
 static int     tsdbInitTableCfg(STableCfg *config, ETableType type, uint64_t uid, int32_t tid);
 static int     tsdbTableSetSchema(STableCfg *config, STSchema *pSchema, bool dup);
@@ -76,7 +75,7 @@ int tsdbCreateTable(TSDB_REPO_T *repo, STableCfg *pCfg) {
       // TODO
       if (super->type != TSDB_SUPER_TABLE) return -1;
       if (super->tableId.uid != pCfg->superUid) return -1;
-      tsdbUpdateTable(pRepo, super, pCfg);
+      // tsdbUpdateTable(pRepo, super, pCfg);
     }
   }
 
@@ -84,10 +83,18 @@ int tsdbCreateTable(TSDB_REPO_T *repo, STableCfg *pCfg) {
   if (table == NULL) goto _err;
 
   // Register to meta
+  tsdbWLockRepoMeta(pRepo);
   if (newSuper) {
-    if (tsdbAddTableToMeta(pRepo, super, true) < 0) goto _err;
+    if (tsdbAddTableToMeta(pRepo, super, true, false) < 0) {
+      tsdbUnlockRepoMeta(pRepo);
+      goto _err;
+    }
+  }
+  if (tsdbAddTableToMeta(pRepo, table, true, false) < 0) {
+    tsdbUnlockRepoMeta(pRepo);
+    goto _err;
   }
-  if (tsdbAddTableToMeta(pRepo, table, true) < 0) goto _err;
+  tsdbUnlockRepoMeta(pRepo);
 
   // Write to memtable action
   int   tlen1 = (newSuper) ? tsdbGetTableEncodeSize(TSDB_UPDATE_META, super) : 0;
@@ -255,7 +262,7 @@ _err:
   return NULL;
 }
 
-static int32_t colIdCompar(const void* left, const void* right) {
+static UNUSED_FUNC int32_t colIdCompar(const void* left, const void* right) {
   int16_t colId = *(int16_t*) left;
   STColumn* p2 = (STColumn*) right;
 
@@ -266,91 +273,118 @@ static int32_t colIdCompar(const void* left, const void* right) {
   return (colId < p2->colId)? -1:1;
 }
 
-int tsdbUpdateTagValue(TSDB_REPO_T *repo, SUpdateTableTagValMsg *pMsg) {
+int tsdbUpdateTableTagValue(TSDB_REPO_T *repo, SUpdateTableTagValMsg *pMsg) {
   STsdbRepo *pRepo = (STsdbRepo *)repo;
   STsdbMeta *pMeta = pRepo->tsdbMeta;
+  STSchema * pNewSchema = NULL;
 
   pMsg->uid = htobe64(pMsg->uid);
   pMsg->tid = htonl(pMsg->tid);
   pMsg->tversion  = htons(pMsg->tversion);
   pMsg->colId     = htons(pMsg->colId);
-  pMsg->type      = htons(pMsg->type);
   pMsg->bytes     = htons(pMsg->bytes);
   pMsg->tagValLen = htonl(pMsg->tagValLen);
   pMsg->numOfTags = htons(pMsg->numOfTags);
   pMsg->schemaLen = htonl(pMsg->schemaLen);
-  assert(pMsg->schemaLen == sizeof(STColumn) * pMsg->numOfTags);
-
-  char* d = pMsg->data;
-  for(int32_t i = 0; i < pMsg->numOfTags; ++i) {
-    STColumn* pCol = (STColumn*) d;
-    pCol->colId = htons(pCol->colId);
-    pCol->bytes = htons(pCol->bytes);
-    pCol->offset = 0;
-
-    d += sizeof(STColumn);
+  for (int i = 0; i < pMsg->numOfTags; i++) {
+    STColumn *pTCol = (STColumn *)pMsg->data + i;
+    pTCol->bytes = htons(pTCol->bytes);
+    pTCol->colId = htons(pTCol->colId);
   }
 
   STable *pTable = tsdbGetTableByUid(pMeta, pMsg->uid);
-  if (pTable == NULL) {
-    terrno = TSDB_CODE_TDB_INVALID_TABLE_ID;
-    return -1;
-  }
-  if (TABLE_TID(pTable) != pMsg->tid) {
+  if (pTable == NULL || TABLE_TID(pTable) != pMsg->tid) {
+    tsdbError("vgId:%d failed to update table tag value since invalid table id %d uid %" PRIu64, REPO_ID(pRepo),
+              pMsg->tid, pMsg->uid);
     terrno = TSDB_CODE_TDB_INVALID_TABLE_ID;
     return -1;
   }
 
   if (TABLE_TYPE(pTable) != TSDB_CHILD_TABLE) {
-    tsdbError("vgId:%d failed to update tag value of table %s since its type is %d", REPO_ID(pRepo),
-              TABLE_CHAR_NAME(pTable), TABLE_TYPE(pTable));
+    tsdbError("vgId:%d try to update tag value of a non-child table, invalid action", REPO_ID(pRepo));
     terrno = TSDB_CODE_TDB_INVALID_ACTION;
     return -1;
   }
 
-  if (schemaVersion(tsdbGetTableTagSchema(pTable)) < pMsg->tversion) {
-    tsdbDebug("vgId:%d server tag version %d is older than client tag version %d, try to config", REPO_ID(pRepo),
-              schemaVersion(tsdbGetTableTagSchema(pTable)), pMsg->tversion);
-    void *msg = (*pRepo->appH.configFunc)(pRepo->config.tsdbId, pMsg->tid);
-    if (msg == NULL) return -1;
+  if (schemaVersion(pTable->pSuper->tagSchema) > pMsg->tversion) {
+    tsdbError(
+        "vgId:%d failed to update tag value of table %s since version out of date, client tag version %d server tag "
+        "version %d",
+        REPO_ID(pRepo), TABLE_CHAR_NAME(pTable), pMsg->tversion, schemaVersion(pTable->tagSchema));
+    terrno = TSDB_CODE_TDB_TAG_VER_OUT_OF_DATE;
+    return -1;
+  }
 
-    // Deal with error her
-    STableCfg *pTableCfg = tsdbCreateTableCfgFromMsg(msg);
-    STable *   super = tsdbGetTableByUid(pMeta, pTableCfg->superUid);
-    ASSERT(super != NULL);
+  if (schemaVersion(pTable->pSuper->tagSchema) < pMsg->tversion) {  // tag schema out of data,
+    tsdbDebug("vgId:%d need to update tag schema of table %s tid %d uid %" PRIu64
+              " since out of date, current version %d new version %d",
+              REPO_ID(pRepo), TABLE_CHAR_NAME(pTable), TABLE_TID(pTable), TABLE_UID(pTable),
+              schemaVersion(pTable->pSuper->tagSchema), pMsg->tversion);
 
-    int32_t code = tsdbUpdateTable(pRepo, super, pTableCfg);
-    if (code != TSDB_CODE_SUCCESS) {
-      tsdbClearTableCfg(pTableCfg);
-      return code;
+    STSchemaBuilder schemaBuilder = {0};
+
+    STColumn *pTCol = (STColumn *)pMsg->data;
+    ASSERT(pMsg->schemaLen % sizeof(STColumn) == 0 && pTCol[0].colId == colColId(schemaColAt(pTable->pSuper->tagSchema, 0)));
+    if (tdInitTSchemaBuilder(&schemaBuilder, pMsg->tversion) < 0) {
+      tsdbDebug("vgId:%d failed to update tag schema of table %s tid %d uid %" PRIu64 " since out of memory",
+                REPO_ID(pRepo), TABLE_CHAR_NAME(pTable), TABLE_TID(pTable), TABLE_UID(pTable));
+      terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+      return -1;
     }
-    tsdbClearTableCfg(pTableCfg);
-    rpcFreeCont(msg);
+    for (int i = 0; i < (pMsg->schemaLen / sizeof(STColumn)); i++) {
+      if (tdAddColToSchema(&schemaBuilder, pTCol[i].type, pTCol[i].colId, pTCol[i].bytes) < 0) {
+        tdDestroyTSchemaBuilder(&schemaBuilder);
+        terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+        return -1;
+      }
+    }
+    pNewSchema = tdGetSchemaFromBuilder(&schemaBuilder);
+    if (pNewSchema == NULL) {
+      tdDestroyTSchemaBuilder(&schemaBuilder);
+      terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
+      return -1;
+    }
+    tdDestroyTSchemaBuilder(&schemaBuilder);
   }
 
-  STSchema *pTagSchema = tsdbGetTableTagSchema(pTable);
-
-  if (schemaVersion(pTagSchema) > pMsg->tversion) {
-    tsdbError(
-        "vgId:%d failed to update tag value of table %s since version out of date, client tag version %d server tag "
-        "version %d",
-        REPO_ID(pRepo), TABLE_CHAR_NAME(pTable), pMsg->tversion, schemaVersion(pTable->tagSchema));
-    return TSDB_CODE_TDB_TAG_VER_OUT_OF_DATE;
+  // Chage in memory
+  if (pNewSchema != NULL) { // change super table tag schema
+    taosWLockLatch(&(pTable->pSuper->latch));
+    STSchema *pOldSchema = pTable->pSuper->tagSchema;
+    pTable->pSuper->tagSchema = pNewSchema;
+    tdFreeSchema(pOldSchema);
+    taosWUnLockLatch(&(pTable->pSuper->latch));
   }
-  if (schemaColAt(pTagSchema, DEFAULT_TAG_INDEX_COLUMN)->colId == pMsg->colId) {
+
+  bool      isChangeIndexCol = (pMsg->colId == colColId(schemaColAt(pTable->pSuper->tagSchema, 0)));
+  // STColumn *pCol = bsearch(&(pMsg->colId), pMsg->data, pMsg->numOfTags, sizeof(STColumn), colIdCompar);
+  // ASSERT(pCol != NULL);
+
+  if (isChangeIndexCol) {
+    tsdbWLockRepoMeta(pRepo);
     tsdbRemoveTableFromIndex(pMeta, pTable);
   }
-  // TODO: remove table from index if it is the first column of tag
-
-  // TODO: convert the tag schema from client, and then extract the type and bytes from schema according to colId
-  STColumn* res = bsearch(&pMsg->colId, pMsg->data, pMsg->numOfTags, sizeof(STColumn), colIdCompar);
-  assert(res != NULL);
+  taosWLockLatch(&(pTable->latch));
+  tdSetKVRowDataOfCol(&(pTable->tagVal), pMsg->colId, pMsg->type, POINTER_SHIFT(pMsg->data, pMsg->schemaLen));
+  taosWUnLockLatch(&(pTable->latch));
+  if (isChangeIndexCol) {
+    tsdbAddTableIntoIndex(pMeta, pTable, false);
+    tsdbUnlockRepoMeta(pRepo);
+  }
 
-  tdSetKVRowDataOfCol(&pTable->tagVal, pMsg->colId, res->type, pMsg->data + pMsg->schemaLen);
-  if (schemaColAt(pTagSchema, DEFAULT_TAG_INDEX_COLUMN)->colId == pMsg->colId) {
-    tsdbAddTableIntoIndex(pMeta, pTable);
+  // Update on file
+  int tlen1 = (pNewSchema) ? tsdbGetTableEncodeSize(TSDB_UPDATE_META, pTable->pSuper) : 0;
+  int tlen2 = tsdbGetTableEncodeSize(TSDB_UPDATE_META, pTable);
+  void *buf = tsdbAllocBytes(pRepo, tlen1+tlen2);
+  ASSERT(buf != NULL);
+  if (pNewSchema) {
+    void *pBuf = tsdbInsertTableAct(pRepo, TSDB_UPDATE_META, buf, pTable->pSuper);
+    ASSERT(POINTER_DISTANCE(pBuf, buf) == tlen1);
+    buf = pBuf;
   }
-  return TSDB_CODE_SUCCESS;
+  tsdbInsertTableAct(pRepo, TSDB_UPDATE_META, buf, pTable);
+
+  return 0;
 }
 
 // ------------------ INTERNAL FUNCTIONS ------------------
@@ -460,56 +494,7 @@ STable *tsdbGetTableByUid(STsdbMeta *pMeta, uint64_t uid) {
 }
 
 STSchema *tsdbGetTableSchemaByVersion(STable *pTable, int16_t version) {
-  STable *pSearchTable = (pTable->type == TSDB_CHILD_TABLE) ? pTable->pSuper : pTable;
-  if (pSearchTable == NULL) return NULL;
-
-  void *ptr = taosbsearch(&version, pSearchTable->schema, pSearchTable->numOfSchemas, sizeof(STSchema *),
-                          tsdbCompareSchemaVersion, TD_EQ);
-  if (ptr == NULL) return NULL;
-
-  return *(STSchema **)ptr;
-}
-
-int tsdbUpdateTable(STsdbRepo *pRepo, STable *pTable, STableCfg *pCfg) {
-  // TODO: this function can only be called when there is no query and commit on this table
-  ASSERT(TABLE_TYPE(pTable) != TSDB_CHILD_TABLE);
-  bool       changed = false;
-  STsdbMeta *pMeta = pRepo->tsdbMeta;
-
-  if ((pTable->type == TSDB_SUPER_TABLE) && (schemaVersion(pTable->tagSchema) < schemaVersion(pCfg->tagSchema))) {
-    if (tsdbUpdateTableTagSchema(pTable, pCfg->tagSchema) < 0) {
-      tsdbError("vgId:%d failed to update table %s tag schema since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
-                tstrerror(terrno));
-      return -1;
-    }
-    changed = true;
-  }
-
-  STSchema *pTSchema = tsdbGetTableSchema(pTable);
-  if (schemaVersion(pTSchema) < schemaVersion(pCfg->schema)) {
-    if (pTable->numOfSchemas < TSDB_MAX_TABLE_SCHEMAS) {
-      pTable->schema[pTable->numOfSchemas++] = tdDupSchema(pCfg->schema);
-    } else {
-      ASSERT(pTable->numOfSchemas == TSDB_MAX_TABLE_SCHEMAS);
-      STSchema *tSchema = tdDupSchema(pCfg->schema);
-      tdFreeSchema(pTable->schema[0]);
-      memmove(pTable->schema, pTable->schema + 1, sizeof(STSchema *) * (TSDB_MAX_TABLE_SCHEMAS - 1));
-      pTable->schema[pTable->numOfSchemas - 1] = tSchema;
-    }
-
-    pMeta->maxRowBytes = MAX(pMeta->maxRowBytes, dataRowMaxBytesFromSchema(pCfg->schema));
-    pMeta->maxCols = MAX(pMeta->maxCols, schemaNCols(pCfg->schema));
-
-    changed = true;
-  }
-
-  if (changed) {
-    int   tlen = tsdbGetTableEncodeSize(TSDB_UPDATE_META, pTable);
-    void *buf = tsdbAllocBytes(pRepo, tlen);
-    tsdbInsertTableAct(pRepo, TSDB_UPDATE_META, buf, pTable);
-  }
-
-  return 0;
+  return tsdbGetTableSchemaImpl(pTable, true, false, version);
 }
 
 int tsdbWLockRepoMeta(STsdbRepo *pRepo) {
@@ -553,7 +538,7 @@ void tsdbRefTable(STable *pTable) {
 
 void tsdbUnRefTable(STable *pTable) {
   int32_t ref = T_REF_DEC(pTable);
-  tsdbTrace("unref table uid:%"PRIu64", tid:%d, refCount:%d", TABLE_UID(pTable), TABLE_TID(pTable), ref);
+  tsdbDebug("unref table uid:%"PRIu64", tid:%d, refCount:%d", TABLE_UID(pTable), TABLE_TID(pTable), ref);
 
   if (ref == 0) {
     // tsdbDebug("destory table name:%s uid:%"PRIu64", tid:%d", TABLE_CHAR_NAME(pTable), TABLE_UID(pTable), TABLE_TID(pTable));
@@ -565,17 +550,36 @@ void tsdbUnRefTable(STable *pTable) {
   }
 }
 
-// ------------------ LOCAL FUNCTIONS ------------------
-static int tsdbCompareSchemaVersion(const void *key1, const void *key2) {
-  if (*(int16_t *)key1 < schemaVersion(*(STSchema **)key2)) {
-    return -1;
-  } else if (*(int16_t *)key1 > schemaVersion(*(STSchema **)key2)) {
-    return 1;
+void tsdbUpdateTableSchema(STsdbRepo *pRepo, STable *pTable, STSchema *pSchema, bool insertAct) {
+  ASSERT(TABLE_TYPE(pTable) != TSDB_STREAM_TABLE && TABLE_TYPE(pTable) != TSDB_SUPER_TABLE);
+  STsdbMeta *pMeta = pRepo->tsdbMeta;
+
+  STable *pCTable = (TABLE_TYPE(pTable) == TSDB_CHILD_TABLE) ? pTable->pSuper : pTable;
+  ASSERT(schemaVersion(pSchema) > schemaVersion(pCTable->schema[pCTable->numOfSchemas - 1]));
+
+  taosWLockLatch(&(pCTable->latch));
+  if (pCTable->numOfSchemas < TSDB_MAX_TABLE_SCHEMAS) {
+    pCTable->schema[pCTable->numOfSchemas++] = pSchema;
   } else {
-    return 0;
+    ASSERT(pCTable->numOfSchemas == TSDB_MAX_TABLE_SCHEMAS);
+    tdFreeSchema(pCTable->schema[0]);
+    memmove(pCTable->schema, pCTable->schema + 1, sizeof(STSchema *) * (TSDB_MAX_TABLE_SCHEMAS - 1));
+    pCTable->schema[pCTable->numOfSchemas - 1] = pSchema;
+  }
+
+  if (schemaNCols(pSchema) > pMeta->maxCols) pMeta->maxCols = schemaNCols(pSchema);
+  if (schemaTLen(pSchema) > pMeta->maxRowBytes) pMeta->maxRowBytes = schemaTLen(pSchema);
+  taosWUnLockLatch(&(pCTable->latch));
+
+  if (insertAct) {
+    int   tlen = tsdbGetTableEncodeSize(TSDB_UPDATE_META, pCTable);
+    void *buf = tsdbAllocBytes(pRepo, tlen);
+    ASSERT(buf != NULL);
+    tsdbInsertTableAct(pRepo, TSDB_UPDATE_META, buf, pTable);
   }
 }
 
+// ------------------ LOCAL FUNCTIONS ------------------
 static int tsdbRestoreTable(void *pHandle, void *cont, int contLen) {
   STsdbRepo *pRepo = (STsdbRepo *)pHandle;
   STable *   pTable = NULL;
@@ -587,7 +591,7 @@ static int tsdbRestoreTable(void *pHandle, void *cont, int contLen) {
 
   tsdbDecodeTable(cont, &pTable);
 
-  if (tsdbAddTableToMeta(pRepo, pTable, false) < 0) {
+  if (tsdbAddTableToMeta(pRepo, pTable, false, false) < 0) {
     tsdbFreeTable(pTable);
     return -1;
   }
@@ -605,7 +609,7 @@ static void tsdbOrgMeta(void *pHandle) {
   for (int i = 1; i < pCfg->maxTables; i++) {
     STable *pTable = pMeta->tables[i];
     if (pTable != NULL && pTable->type == TSDB_CHILD_TABLE) {
-      tsdbAddTableIntoIndex(pMeta, pTable);
+      tsdbAddTableIntoIndex(pMeta, pTable, true);
     }
   }
 }
@@ -715,7 +719,7 @@ _err:
 
 static void tsdbFreeTable(STable *pTable) {
   if (pTable) {
-    tsdbDebug("table %s is destroyed", TABLE_CHAR_NAME(pTable));
+    if (pTable->name != NULL) tsdbDebug("table %s is destroyed", TABLE_CHAR_NAME(pTable));
     tfree(TABLE_NAME(pTable));
     if (TABLE_TYPE(pTable) != TSDB_CHILD_TABLE) {
       for (int i = 0; i < TSDB_MAX_TABLE_SCHEMAS; i++) {
@@ -735,25 +739,10 @@ static void tsdbFreeTable(STable *pTable) {
   }
 }
 
-static int tsdbUpdateTableTagSchema(STable *pTable, STSchema *newSchema) {
-  ASSERT(pTable->type == TSDB_SUPER_TABLE);
-  ASSERT(schemaVersion(pTable->tagSchema) < schemaVersion(newSchema));
-  STSchema *pOldSchema = pTable->tagSchema;
-  STSchema *pNewSchema = tdDupSchema(newSchema);
-  if (pNewSchema == NULL) {
-    terrno = TSDB_CODE_TDB_OUT_OF_MEMORY;
-    return -1;
-  }
-  pTable->tagSchema = pNewSchema;
-  tdFreeSchema(pOldSchema);
-
-  return 0;
-}
-
-static int tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx) {
+static int tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx, bool lock) {
   STsdbMeta *pMeta = pRepo->tsdbMeta;
 
-  if (addIdx && tsdbWLockRepoMeta(pRepo) < 0) {
+  if (lock && tsdbWLockRepoMeta(pRepo) < 0) {
     tsdbError("vgId:%d failed to add table %s to meta since %s", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
               tstrerror(terrno));
     return -1;
@@ -768,7 +757,7 @@ static int tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx) {
     }
   } else {
     if (TABLE_TYPE(pTable) == TSDB_CHILD_TABLE && addIdx) {  // add STABLE to the index
-      if (tsdbAddTableIntoIndex(pMeta, pTable) < 0) {
+      if (tsdbAddTableIntoIndex(pMeta, pTable, true) < 0) {
         tsdbDebug("vgId:%d failed to add table %s to meta while add table to index since %s", REPO_ID(pRepo),
                   TABLE_CHAR_NAME(pTable), tstrerror(terrno));
         goto _err;
@@ -787,14 +776,15 @@ static int tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx) {
   }
 
   if (TABLE_TYPE(pTable) != TSDB_CHILD_TABLE) {
-    STSchema *pSchema = tsdbGetTableSchema(pTable);
+    STSchema *pSchema = tsdbGetTableSchemaImpl(pTable, false, false, -1);
     if (schemaNCols(pSchema) > pMeta->maxCols) pMeta->maxCols = schemaNCols(pSchema);
     if (schemaTLen(pSchema) > pMeta->maxRowBytes) pMeta->maxRowBytes = schemaTLen(pSchema);
   }
 
-  if (addIdx && tsdbUnlockRepoMeta(pRepo) < 0) return -1;
+  if (lock && tsdbUnlockRepoMeta(pRepo) < 0) return -1;
   if (TABLE_TYPE(pTable) == TSDB_STREAM_TABLE && addIdx) {
-    pTable->cqhandle = (*pRepo->appH.cqCreateFunc)(pRepo->appH.cqH, TABLE_UID(pTable), TABLE_TID(pTable), pTable->sql, tsdbGetTableSchema(pTable));
+    pTable->cqhandle = (*pRepo->appH.cqCreateFunc)(pRepo->appH.cqH, TABLE_UID(pTable), TABLE_TID(pTable), pTable->sql,
+                                                   tsdbGetTableSchemaImpl(pTable, false, false, -1));
   }
 
   tsdbTrace("vgId:%d table %s tid %d uid %" PRIu64 " is added to meta", REPO_ID(pRepo), TABLE_CHAR_NAME(pTable),
@@ -803,7 +793,7 @@ static int tsdbAddTableToMeta(STsdbRepo *pRepo, STable *pTable, bool addIdx) {
 
 _err:
   tsdbRemoveTableFromMeta(pRepo, pTable, false, false);
-  if (addIdx) tsdbUnlockRepoMeta(pRepo);
+  if (lock) tsdbUnlockRepoMeta(pRepo);
   return -1;
 }
 
@@ -814,7 +804,7 @@ static void tsdbRemoveTableFromMeta(STsdbRepo *pRepo, STable *pTable, bool rmFro
   STable *   tTable = NULL;
   STsdbCfg * pCfg = &(pRepo->config);
 
-  STSchema *pSchema = tsdbGetTableSchema(pTable);
+  STSchema *pSchema = tsdbGetTableSchemaImpl(pTable, false, false, -1);
   int       maxCols = schemaNCols(pSchema);
   int       maxRowBytes = schemaTLen(pSchema);
 
@@ -848,7 +838,7 @@ static void tsdbRemoveTableFromMeta(STsdbRepo *pRepo, STable *pTable, bool rmFro
     for (int i = 0; i < pCfg->maxTables; i++) {
       STable *pTable = pMeta->tables[i];
       if (pTable != NULL) {
-        pSchema = tsdbGetTableSchema(pTable);
+        pSchema = tsdbGetTableSchemaImpl(pTable, false, false, -1);
         maxCols = MAX(maxCols, schemaNCols(pSchema));
         maxRowBytes = MAX(maxRowBytes, schemaTLen(pSchema));
       }
@@ -860,7 +850,7 @@ static void tsdbRemoveTableFromMeta(STsdbRepo *pRepo, STable *pTable, bool rmFro
   tsdbUnRefTable(pTable);
 }
 
-static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable) {
+static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable, bool refSuper) {
   ASSERT(pTable->type == TSDB_CHILD_TABLE && pTable != NULL);
   STable *pSTable = tsdbGetTableByUid(pMeta, TABLE_SUID(pTable));
   ASSERT(pSTable != NULL);
@@ -884,7 +874,7 @@ static int tsdbAddTableIntoIndex(STsdbMeta *pMeta, STable *pTable) {
   memcpy(SL_GET_NODE_DATA(pNode), &pTable, sizeof(STable *));
 
   tSkipListPut(pSTable->pIndex, pNode);
-  T_REF_INC(pSTable);
+  if (refSuper) T_REF_INC(pSTable);
   return 0;
 }
 
@@ -1252,4 +1242,4 @@ static int tsdbRmTableFromMeta(STsdbRepo *pRepo, STable *pTable) {
   }
 
   return 0;
-}
+}
\ No newline at end of file
diff --git a/src/tsdb/src/tsdbRWHelper.c b/src/tsdb/src/tsdbRWHelper.c
index eab9a5e0565a301d5f6d2f30a16c876c1acb781f..9e87a1f587971be02f66151725d7f1a19455184b 100644
--- a/src/tsdb/src/tsdbRWHelper.c
+++ b/src/tsdb/src/tsdbRWHelper.c
@@ -218,7 +218,7 @@ void tsdbSetHelperTable(SRWHelper *pHelper, STable *pTable, STsdbRepo *pRepo) {
 
   pHelper->tableInfo.tid = pTable->tableId.tid;
   pHelper->tableInfo.uid = pTable->tableId.uid;
-  STSchema *pSchema = tsdbGetTableSchema(pTable);
+  STSchema *pSchema = tsdbGetTableSchemaImpl(pTable, false, false, -1);
   pHelper->tableInfo.sversion = schemaVersion(pSchema);
 
   tdInitDataCols(pHelper->pDataCols[0], pSchema);
diff --git a/src/vnode/src/vnodeWrite.c b/src/vnode/src/vnodeWrite.c
index 3dc2f43fc8625ef44f48cd3fa00faffbda620129..182516d678693a43df3b982e66a0505b7a27e776 100644
--- a/src/vnode/src/vnodeWrite.c
+++ b/src/vnode/src/vnodeWrite.c
@@ -162,7 +162,7 @@ static int32_t vnodeProcessDropStableMsg(SVnodeObj *pVnode, void *pCont, SRspRet
 }
 
 static int32_t vnodeProcessUpdateTagValMsg(SVnodeObj *pVnode, void *pCont, SRspRet *pRet) {
-  if (tsdbUpdateTagValue(pVnode->tsdb, (SUpdateTableTagValMsg *)pCont) < 0) {
+  if (tsdbUpdateTableTagValue(pVnode->tsdb, (SUpdateTableTagValMsg *)pCont) < 0) {
     return terrno;
   }
   return TSDB_CODE_SUCCESS;