diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index 808c7c8fa648dc00bf18f88ad11f8f869df57b7c..04742e547de8c3cbfbf1a4e38f3aa2734176488b 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -249,14 +249,24 @@ typedef struct SSchema {
   char    name[TSDB_COL_NAME_LEN];
 } SSchema;
 
+typedef struct SField {
+  char    name[TSDB_COL_NAME_LEN];
+  uint8_t type;
+  int32_t bytes;
+} SField;
+
 typedef struct {
   char    name[TSDB_TABLE_FNAME_LEN];
   int8_t  igExists;
-  int32_t numOfTags;
   int32_t numOfColumns;
-  SSchema pSchemas[];
+  int32_t numOfTags;
+  SArray* pColumns;
+  SArray* pTags;
 } SMCreateStbReq;
 
+int32_t tSerializeSMCreateStbReq(void** buf, SMCreateStbReq* pReq);
+void*   tDeserializeSMCreateStbReq(void* buf, SMCreateStbReq* pReq);
+
 typedef struct {
   char   name[TSDB_TABLE_FNAME_LEN];
   int8_t igNotExists;
diff --git a/include/libs/parser/parsenodes.h b/include/libs/parser/parsenodes.h
index d245d04166d90f7015239e5eec0459fb812c9838..292b4ab2c913b9967743531a10841268dd1c5e3c 100644
--- a/include/libs/parser/parsenodes.h
+++ b/include/libs/parser/parsenodes.h
@@ -37,12 +37,6 @@ typedef struct SQueryNode {
 
 #define queryNodeType(nodeptr) (((const SQueryNode*)(nodeptr))->type)
 
-typedef struct SField {
-  char     name[TSDB_COL_NAME_LEN];
-  uint8_t  type;
-  int32_t  bytes;
-} SField;
-
 typedef struct SFieldInfo {
   int16_t     numOfOutput;   // number of column in result
   SField     *final;
diff --git a/source/common/src/tmsg.c b/source/common/src/tmsg.c
index 6f094b20f805664d965a6e9b0cd3e4c429c573ce..0711981436757fca78b5810bd86283d31a332972 100644
--- a/source/common/src/tmsg.c
+++ b/source/common/src/tmsg.c
@@ -336,3 +336,66 @@ void *tDeserializeSVDropTbReq(void *buf, SVDropTbReq *pReq) {
   buf = taosDecodeFixedU8(buf, &pReq->type);
   return buf;
 }
+
+int32_t tSerializeSMCreateStbReq(void **buf, SMCreateStbReq *pReq) {
+  int32_t tlen = 0;
+
+  tlen += taosEncodeString(buf, pReq->name);
+  tlen += taosEncodeFixedI8(buf, pReq->igExists);
+  tlen += taosEncodeFixedI32(buf, pReq->numOfColumns);
+  tlen += taosEncodeFixedI32(buf, pReq->numOfTags);
+
+  for (int32_t i = 0; i < pReq->numOfColumns; ++i) {
+    SField *pField = taosArrayGet(pReq->pColumns, i);
+    tlen += taosEncodeFixedI8(buf, pField->type);
+    tlen += taosEncodeFixedI32(buf, pField->bytes);
+    tlen += taosEncodeString(buf, pField->name);
+  }
+
+  for (int32_t i = 0; i < pReq->numOfTags; ++i) {
+    SField *pField = taosArrayGet(pReq->pTags, i);
+    tlen += taosEncodeFixedI8(buf, pField->type);
+    tlen += taosEncodeFixedI32(buf, pField->bytes);
+    tlen += taosEncodeString(buf, pField->name);
+  }
+
+  return tlen;
+}
+
+void *tDeserializeSMCreateStbReq(void *buf, SMCreateStbReq *pReq) {
+  buf = taosDecodeStringTo(buf, pReq->name);
+  buf = taosDecodeFixedI8(buf, &pReq->igExists);
+  buf = taosDecodeFixedI32(buf, &pReq->numOfColumns);
+  buf = taosDecodeFixedI32(buf, &pReq->numOfTags);
+
+  pReq->pColumns = taosArrayInit(pReq->numOfColumns, sizeof(SField));
+  pReq->pTags = taosArrayInit(pReq->numOfTags, sizeof(SField));
+  if (pReq->pColumns == NULL || pReq->pTags == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return NULL;
+  }
+
+  for (int32_t i = 0; i < pReq->numOfColumns; ++i) {
+    SField field = {0};
+    buf = taosDecodeFixedI8(buf, &field.type);
+    buf = taosDecodeFixedI32(buf, &field.bytes);
+    buf = taosDecodeStringTo(buf, field.name);
+    if (taosArrayPush(pReq->pColumns, &field) == NULL) {
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
+      return NULL;
+    }
+  }
+
+  for (int32_t i = 0; i < pReq->numOfTags; ++i) {
+    SField field = {0};
+    buf = taosDecodeFixedI8(buf, &field.type);
+    buf = taosDecodeFixedI32(buf, &field.bytes);
+    buf = taosDecodeStringTo(buf, field.name);
+    if (taosArrayPush(pReq->pTags, &field) == NULL) {
+      terrno = TSDB_CODE_OUT_OF_MEMORY;
+      return NULL;
+    }
+  }
+
+  return buf;
+}
diff --git a/source/dnode/mnode/impl/src/mndStb.c b/source/dnode/mnode/impl/src/mndStb.c
index b5222ab3fc8c07d93e843001a5e6c8b68c406a96..845f911787c11aff63213465b8ae6e27cb7d77cc 100644
--- a/source/dnode/mnode/impl/src/mndStb.c
+++ b/source/dnode/mnode/impl/src/mndStb.c
@@ -323,14 +323,6 @@ static void *mndBuildVDropStbReq(SMnode *pMnode, SVgObj *pVgroup, SStbObj *pStb,
 }
 
 static int32_t mndCheckCreateStbReq(SMCreateStbReq *pCreate) {
-  pCreate->numOfColumns = htonl(pCreate->numOfColumns);
-  pCreate->numOfTags = htonl(pCreate->numOfTags);
-  int32_t totalCols = pCreate->numOfColumns + pCreate->numOfTags;
-  for (int32_t i = 0; i < totalCols; ++i) {
-    SSchema *pSchema = &pCreate->pSchemas[i];
-    pSchema->bytes = htonl(pSchema->bytes);
-  }
-
   if (pCreate->igExists < 0 || pCreate->igExists > 1) {
     terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
     return -1;
@@ -346,23 +338,39 @@ static int32_t mndCheckCreateStbReq(SMCreateStbReq *pCreate) {
     return -1;
   }
 
-  SSchema *pSchema = &pCreate->pSchemas[0];
-  if (pSchema->type != TSDB_DATA_TYPE_TIMESTAMP) {
+  SField *pField = taosArrayGet(pCreate->pColumns, 0) ;
+  if (pField->type != TSDB_DATA_TYPE_TIMESTAMP) {
     terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
     return -1;
   }
 
-  for (int32_t i = 0; i < totalCols; ++i) {
-    SSchema *pSchema = &pCreate->pSchemas[i];
-    if (pSchema->type < 0) {
+  for (int32_t i = 0; i < pCreate->numOfColumns; ++i) {
+    SField *pField = taosArrayGet(pCreate->pColumns, i);
+    if (pField->type < 0) {
       terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
       return -1;
     }
-    if (pSchema->bytes <= 0) {
+    if (pField->bytes <= 0) {
       terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
       return -1;
     }
-    if (pSchema->name[0] == 0) {
+    if (pField->name[0] == 0) {
+      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
+      return -1;
+    }
+  }
+
+  for (int32_t i = 0; i < pCreate->numOfTags; ++i) {
+    SField *pField = taosArrayGet(pCreate->pTags, i);
+    if (pField->type < 0) {
+      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
+      return -1;
+    }
+    if (pField->bytes <= 0) {
+      terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
+      return -1;
+    }
+    if (pField->name[0] == 0) {
       terrno = TSDB_CODE_MND_INVALID_STB_OPTION;
       return -1;
     }
@@ -490,16 +498,23 @@ static int32_t mndCreateStb(SMnode *pMnode, SMnodeMsg *pReq, SMCreateStbReq *pCr
     return -1;
   }
 
-  memcpy(stbObj.pColumns, pCreate->pSchemas, stbObj.numOfColumns * sizeof(SSchema));
-  memcpy(stbObj.pTags, pCreate->pSchemas + stbObj.numOfColumns, stbObj.numOfTags * sizeof(SSchema));
-
   for (int32_t i = 0; i < stbObj.numOfColumns; ++i) {
-    stbObj.pColumns[i].colId = stbObj.nextColId;
+    SField  *pField = taosArrayGet(pCreate->pColumns, i);
+    SSchema *pSchema = &stbObj.pColumns[i];
+    pSchema->type = pField->type;
+    pSchema->bytes = pField->bytes;
+    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
+    pSchema->colId = stbObj.nextColId;
     stbObj.nextColId++;
   }
 
   for (int32_t i = 0; i < stbObj.numOfTags; ++i) {
-    stbObj.pTags[i].colId = stbObj.nextColId;
+    SField  *pField = taosArrayGet(pCreate->pTags, i);
+    SSchema *pSchema = &stbObj.pTags[i];
+    pSchema->type = pField->type;
+    pSchema->bytes = pField->bytes;
+    memcpy(pSchema->name, pField->name, TSDB_COL_NAME_LEN);
+    pSchema->colId = stbObj.nextColId;
     stbObj.nextColId++;
   }
 
@@ -524,57 +539,60 @@ CREATE_STB_OVER:
 }
 
 static int32_t mndProcessMCreateStbReq(SMnodeMsg *pReq) {
-  SMnode         *pMnode = pReq->pMnode;
-  SMCreateStbReq *pCreate = pReq->rpcMsg.pCont;
+  SMnode        *pMnode = pReq->pMnode;
+  int32_t        code = -1;
+  SStbObj       *pTopicStb = NULL;
+  SStbObj       *pStb = NULL;
+  SDbObj        *pDb = NULL;
+  SMCreateStbReq createReq = {0};
 
-  mDebug("stb:%s, start to create", pCreate->name);
+  if (tDeserializeSMCreateStbReq(pReq->rpcMsg.pCont, &createReq) == NULL) goto CREATE_STB_OVER;
 
-  if (mndCheckCreateStbReq(pCreate) != 0) {
-    mError("stb:%s, failed to create since %s", pCreate->name, terrstr());
-    return -1;
-  }
+  mDebug("stb:%s, start to create", createReq.name);
+  if (mndCheckCreateStbReq(&createReq) != 0) goto CREATE_STB_OVER;
 
-  SStbObj *pStb = mndAcquireStb(pMnode, pCreate->name);
+  pStb = mndAcquireStb(pMnode, createReq.name);
   if (pStb != NULL) {
-    mndReleaseStb(pMnode, pStb);
-    if (pCreate->igExists) {
-      mDebug("stb:%s, already exist, ignore exist is set", pCreate->name);
-      return 0;
+    if (createReq.igExists) {
+      mDebug("stb:%s, already exist, ignore exist is set", createReq.name);
+      code = 0;
+      goto CREATE_STB_OVER;
     } else {
       terrno = TSDB_CODE_MND_STB_ALREADY_EXIST;
-      mError("stb:%s, failed to create since %s", pCreate->name, terrstr());
-      return -1;
+      goto CREATE_STB_OVER;
     }
   } else if (terrno != TSDB_CODE_MND_STB_NOT_EXIST) {
-    mError("stb:%s, failed to create since %s", pCreate->name, terrstr());
-    return -1;
+    goto CREATE_STB_OVER;
   }
 
-  // topic should have different name with stb
-  SStbObj *pTopicStb = mndAcquireStb(pMnode, pCreate->name);
+  pTopicStb = mndAcquireStb(pMnode, createReq.name);
   if (pTopicStb != NULL) {
-    mndReleaseStb(pMnode, pTopicStb);
     terrno = TSDB_CODE_MND_NAME_CONFLICT_WITH_TOPIC;
-    mError("stb:%s, failed to create since %s", pCreate->name, terrstr());
-    return -1;
+    goto CREATE_STB_OVER;
   }
 
-  SDbObj *pDb = mndAcquireDbByStb(pMnode, pCreate->name);
+  pDb = mndAcquireDbByStb(pMnode, createReq.name);
   if (pDb == NULL) {
     terrno = TSDB_CODE_MND_DB_NOT_SELECTED;
-    mError("stb:%s, failed to create since %s", pCreate->name, terrstr());
-    return -1;
+    goto CREATE_STB_OVER;
   }
 
-  int32_t code = mndCreateStb(pMnode, pReq, pCreate, pDb);
-  mndReleaseDb(pMnode, pDb);
+  code = mndCreateStb(pMnode, pReq, &createReq, pDb);
 
+CREATE_STB_OVER:
   if (code != 0) {
-    mError("stb:%s, failed to create since %s", pCreate->name, terrstr());
-    return -1;
+    mError("stb:%s, failed to create since %s", createReq.name, terrstr());
+  } else {
+    code = TSDB_CODE_MND_ACTION_IN_PROGRESS;
   }
 
-  return TSDB_CODE_MND_ACTION_IN_PROGRESS;
+  mndReleaseStb(pMnode, pStb);
+  mndReleaseStb(pMnode, pTopicStb);
+  mndReleaseDb(pMnode, pDb);
+  taosArrayClear(createReq.pColumns);
+  taosArrayClear(createReq.pTags);
+
+  return code;
 }
 
 static int32_t mndProcessVCreateStbRsp(SMnodeMsg *pRsp) {
diff --git a/source/dnode/mnode/impl/test/stb/stb.cpp b/source/dnode/mnode/impl/test/stb/stb.cpp
index 402795eb039bd8992545f690318ca9aabbf02acb..b870bc8fe840d3ffacdf21aa2e458ec6ac17f0d6 100644
--- a/source/dnode/mnode/impl/test/stb/stb.cpp
+++ b/source/dnode/mnode/impl/test/stb/stb.cpp
@@ -22,19 +22,19 @@ class MndTestStb : public ::testing::Test {
   void SetUp() override {}
   void TearDown() override {}
 
-  SCreateDbReq*   BuildCreateDbReq(const char* dbname, int32_t* pContLen);
-  SDropDbReq*     BuildDropDbReq(const char* dbname, int32_t* pContLen);
-  SMCreateStbReq* BuildCreateStbReq(const char* stbname, int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbAddTagReq(const char* stbname, const char* tagname, int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbDropTagReq(const char* stbname, const char* tagname, int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbUpdateTagNameReq(const char* stbname, const char* tagname, const char* newtagname,
-                                                int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbUpdateTagBytesReq(const char* stbname, const char* tagname, int32_t bytes,
-                                                 int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbAddColumnReq(const char* stbname, const char* colname, int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbDropColumnReq(const char* stbname, const char* colname, int32_t* pContLen);
-  SMAltertbReq*   BuildAlterStbUpdateColumnBytesReq(const char* stbname, const char* colname, int32_t bytes,
-                                                    int32_t* pContLen);
+  SCreateDbReq* BuildCreateDbReq(const char* dbname, int32_t* pContLen);
+  SDropDbReq*   BuildDropDbReq(const char* dbname, int32_t* pContLen);
+  void*         BuildCreateStbReq(const char* stbname, int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbAddTagReq(const char* stbname, const char* tagname, int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbDropTagReq(const char* stbname, const char* tagname, int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbUpdateTagNameReq(const char* stbname, const char* tagname, const char* newtagname,
+                                              int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbUpdateTagBytesReq(const char* stbname, const char* tagname, int32_t bytes,
+                                               int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbAddColumnReq(const char* stbname, const char* colname, int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbDropColumnReq(const char* stbname, const char* colname, int32_t* pContLen);
+  SMAltertbReq* BuildAlterStbUpdateColumnBytesReq(const char* stbname, const char* colname, int32_t bytes,
+                                                  int32_t* pContLen);
 };
 
 Testbase MndTestStb::test;
@@ -78,53 +78,62 @@ SDropDbReq* MndTestStb::BuildDropDbReq(const char* dbname, int32_t* pContLen) {
   return pReq;
 }
 
-SMCreateStbReq* MndTestStb::BuildCreateStbReq(const char* stbname, int32_t* pContLen) {
-  int32_t cols = 2;
-  int32_t tags = 3;
-  int32_t contLen = (tags + cols) * sizeof(SSchema) + sizeof(SMCreateStbReq);
-
-  SMCreateStbReq* pReq = (SMCreateStbReq*)rpcMallocCont(contLen);
-  strcpy(pReq->name, stbname);
-  pReq->numOfTags = htonl(tags);
-  pReq->numOfColumns = htonl(cols);
+void* MndTestStb::BuildCreateStbReq(const char* stbname, int32_t* pContLen) {
+  SMCreateStbReq createReq = {0};
+  createReq.numOfColumns = 2;
+  createReq.numOfTags = 3;
+  createReq.igExists = 0;
+  createReq.pColumns = taosArrayInit(createReq.numOfColumns, sizeof(SField));
+  createReq.pTags = taosArrayInit(createReq.numOfTags, sizeof(SField));
+  strcpy(createReq.name, stbname);
 
   {
-    SSchema* pSchema = &pReq->pSchemas[0];
-    pSchema->bytes = htonl(8);
-    pSchema->type = TSDB_DATA_TYPE_TIMESTAMP;
-    strcpy(pSchema->name, "ts");
+    SField field = {0};
+    field.bytes = 8;
+    field.type = TSDB_DATA_TYPE_TIMESTAMP;
+    strcpy(field.name, "ts");
+    taosArrayPush(createReq.pColumns, &field);
   }
 
   {
-    SSchema* pSchema = &pReq->pSchemas[1];
-    pSchema->bytes = htonl(12);
-    pSchema->type = TSDB_DATA_TYPE_BINARY;
-    strcpy(pSchema->name, "col1");
+    SField field = {0};
+    field.bytes = 12;
+    field.type = TSDB_DATA_TYPE_BINARY;
+    strcpy(field.name, "col1");
+    taosArrayPush(createReq.pColumns, &field);
   }
 
   {
-    SSchema* pSchema = &pReq->pSchemas[2];
-    pSchema->bytes = htonl(2);
-    pSchema->type = TSDB_DATA_TYPE_TINYINT;
-    strcpy(pSchema->name, "tag1");
+    SField field = {0};
+    field.bytes = 2;
+    field.type = TSDB_DATA_TYPE_TINYINT;
+    strcpy(field.name, "tag1");
+    taosArrayPush(createReq.pTags, &field);
   }
 
   {
-    SSchema* pSchema = &pReq->pSchemas[3];
-    pSchema->bytes = htonl(8);
-    pSchema->type = TSDB_DATA_TYPE_BIGINT;
-    strcpy(pSchema->name, "tag2");
+    SField field = {0};
+    field.bytes = 8;
+    field.type = TSDB_DATA_TYPE_BIGINT;
+    strcpy(field.name, "tag2");
+    taosArrayPush(createReq.pTags, &field);
   }
 
   {
-    SSchema* pSchema = &pReq->pSchemas[4];
-    pSchema->bytes = htonl(16);
-    pSchema->type = TSDB_DATA_TYPE_BINARY;
-    strcpy(pSchema->name, "tag3");
+    SField field = {0};
+    field.bytes = 16;
+    field.type = TSDB_DATA_TYPE_BINARY;
+    strcpy(field.name, "tag3");
+    taosArrayPush(createReq.pTags, &field);
   }
 
-  *pContLen = contLen;
-  return pReq;
+  int32_t tlen = tSerializeSMCreateStbReq(NULL, &createReq);
+  void*   pHead = rpcMallocCont(tlen);
+
+  void* pBuf = pHead;
+  tSerializeSMCreateStbReq(&pBuf, &createReq);
+  *pContLen = tlen;
+  return pHead;
 }
 
 SMAltertbReq* MndTestStb::BuildAlterStbAddTagReq(const char* stbname, const char* tagname, int32_t* pContLen) {
@@ -260,9 +269,9 @@ TEST_F(MndTestStb, 01_Create_Show_Meta_Drop_Restart_Stb) {
   }
 
   {
-    int32_t         contLen = 0;
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    int32_t  contLen = 0;
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_NE(pRsp, nullptr);
     ASSERT_EQ(pRsp->code, 0);
   }
@@ -418,8 +427,8 @@ TEST_F(MndTestStb, 02_Alter_Stb_AddTag) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_NE(pRsp, nullptr);
     ASSERT_EQ(pRsp->code, 0);
   }
@@ -483,8 +492,8 @@ TEST_F(MndTestStb, 03_Alter_Stb_DropTag) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, 0);
   }
 
@@ -529,8 +538,8 @@ TEST_F(MndTestStb, 04_Alter_Stb_AlterTagName) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, 0);
   }
 
@@ -598,8 +607,8 @@ TEST_F(MndTestStb, 05_Alter_Stb_AlterTagBytes) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, 0);
   }
 
@@ -656,8 +665,8 @@ TEST_F(MndTestStb, 06_Alter_Stb_AddColumn) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_NE(pRsp, nullptr);
     ASSERT_EQ(pRsp->code, 0);
   }
@@ -721,8 +730,8 @@ TEST_F(MndTestStb, 07_Alter_Stb_DropColumn) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, 0);
   }
 
@@ -786,8 +795,8 @@ TEST_F(MndTestStb, 08_Alter_Stb_AlterTagBytes) {
   }
 
   {
-    SMCreateStbReq* pReq = BuildCreateStbReq(stbname, &contLen);
-    SRpcMsg*        pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
+    void*    pReq = BuildCreateStbReq(stbname, &contLen);
+    SRpcMsg* pRsp = test.SendReq(TDMT_MND_CREATE_STB, pReq, contLen);
     ASSERT_EQ(pRsp->code, 0);
   }
 
diff --git a/source/libs/parser/src/astToMsg.c b/source/libs/parser/src/astToMsg.c
index c7a1fd26a05741c7a4195703df11ab911cc2e02e..0402c5c60f5b6bc4ed0e7591e878f5128531427b 100644
--- a/source/libs/parser/src/astToMsg.c
+++ b/source/libs/parser/src/astToMsg.c
@@ -249,92 +249,35 @@ SCreateDbReq* buildCreateDbMsg(SCreateDbInfo* pCreateDbInfo, SParseContext *pCtx
   return pCreateMsg;
 }
 
-SMCreateStbReq* buildCreateStbMsg(SCreateTableSql* pCreateTableSql, int32_t* len, SParseContext* pParseCtx, SMsgBuf* pMsgBuf) {
-  SSchema* pSchema;
-
-  int32_t numOfTags = 0;
-  int32_t numOfCols = (int32_t) taosArrayGetSize(pCreateTableSql->colInfo.pColumns);
-  if (pCreateTableSql->colInfo.pTagColumns != NULL) {
-    numOfTags = (int32_t) taosArrayGetSize(pCreateTableSql->colInfo.pTagColumns);
+SMCreateStbReq* buildCreateStbMsg(SCreateTableSql* pCreateTableSql, int32_t* len, SParseContext* pParseCtx,
+                                  SMsgBuf* pMsgBuf) {
+  SMCreateStbReq createReq = {0};
+  createReq.igExists = pCreateTableSql->existCheck ? 1 : 0;
+  createReq.pColumns = pCreateTableSql->colInfo.pColumns;
+  createReq.pTags = pCreateTableSql->colInfo.pTagColumns;
+  createReq.numOfColumns = (int32_t)taosArrayGetSize(pCreateTableSql->colInfo.pColumns);
+  createReq.numOfTags = (int32_t)taosArrayGetSize(pCreateTableSql->colInfo.pTagColumns);
+
+  SName n = {0};
+  if (createSName(&n, &pCreateTableSql->name, pParseCtx, pMsgBuf) != 0) {
+    return NULL;
   }
 
-  SMCreateStbReq* pCreateStbMsg = (SMCreateStbReq*)calloc(1, sizeof(SMCreateStbReq) + (numOfCols + numOfTags) * sizeof(SSchema));
-  if (pCreateStbMsg == NULL) {
+  if (tNameExtractFullName(&n, createReq.name) != 0) {
+    buildInvalidOperationMsg(pMsgBuf, "invalid table name or database not specified");
     return NULL;
   }
 
-  char* pMsg = NULL;
-#if 0
-  int32_t tableType = pCreateTableSql->type;
-  if (tableType != TSQL_CREATE_TABLE && tableType != TSQL_CREATE_STABLE) {  // create by using super table, tags value
-    SArray* list = pInfo->pCreateTableInfo->childTableInfo;
-
-    int32_t numOfTables = (int32_t)taosArrayGetSize(list);
-    pCreateStbMsg->numOfTables = htonl(numOfTables);
-
-    pMsg = (char*)pCreateMsg;
-    for (int32_t i = 0; i < numOfTables; ++i) {
-      SCreateTableMsg* pCreate = (SCreateTableMsg*)pMsg;
-
-      pCreate->numOfColumns = htons(pCmd->numOfCols);
-      pCreate->numOfTags = htons(pCmd->count);
-      pMsg += sizeof(SCreateTableMsg);
-
-      SCreatedTableInfo* p = taosArrayGet(list, i);
-      strcpy(pCreate->tableName, p->fullname);
-      pCreate->igExists = (p->igExist) ? 1 : 0;
-
-      // use dbinfo from table id without modifying current db info
-      pMsg = serializeTagData(&p->tagdata, pMsg);
-
-      int32_t len = (int32_t)(pMsg - (char*)pCreate);
-      pCreate->len = htonl(len);
-    }
-
-  } else {
-#endif
-    // create (super) table
-    SName n = {0};
-    int32_t code = createSName(&n, &pCreateTableSql->name, pParseCtx, pMsgBuf);
-    if (code != 0) {
-      return NULL;
-    }
-
-    code = tNameExtractFullName(&n, pCreateStbMsg->name);
-    if (code != 0) {
-      buildInvalidOperationMsg(pMsgBuf, "invalid table name or database not specified");
-      return NULL;
-    }
-
-    pCreateStbMsg->igExists     = pCreateTableSql->existCheck ? 1 : 0;
-    pCreateStbMsg->numOfColumns = htonl(numOfCols);
-    pCreateStbMsg->numOfTags    = htonl(numOfTags);
-
-    pSchema = (SSchema*)pCreateStbMsg->pSchemas;
-    for (int i = 0; i < numOfCols; ++i) {
-      SField* pField = taosArrayGet(pCreateTableSql->colInfo.pColumns, i);
-      pSchema->type  = pField->type;
-      pSchema->bytes = htonl(pField->bytes);
-      strcpy(pSchema->name, pField->name);
-
-      pSchema++;
-    }
-
-    for(int32_t i = 0; i < numOfTags; ++i) {
-      SField* pField = taosArrayGet(pCreateTableSql->colInfo.pTagColumns, i);
-      pSchema->type  = pField->type;
-      pSchema->bytes = htonl(pField->bytes);
-      strcpy(pSchema->name, pField->name);
-
-      pSchema++;
-    }
-
-    pMsg = (char*)pSchema;
-
-  int32_t msgLen = (int32_t)(pMsg - (char*)pCreateStbMsg);
-  *len = msgLen;
+  int32_t tlen = tSerializeSMCreateStbReq(NULL, &createReq);
+  void*   req = malloc(tlen);
+  if (req == NULL) {
+    terrno = TSDB_CODE_OUT_OF_MEMORY;
+    return NULL;
+  }
 
-  return pCreateStbMsg;
+  void *buf = req;
+  tSerializeSMCreateStbReq(&buf, &createReq);
+  return req;
 }
 
 SMDropStbReq* buildDropStableMsg(SSqlInfo* pInfo, int32_t* len, SParseContext* pParseCtx, SMsgBuf* pMsgBuf) {
diff --git a/source/util/src/tarray.c b/source/util/src/tarray.c
index 09aeff5ff3f749ab7292700ccd42f9be7c6e4dc8..3e6f97c0c3bcdc30d39f08dd469babd3199a1fa9 100644
--- a/source/util/src/tarray.c
+++ b/source/util/src/tarray.c
@@ -204,7 +204,12 @@ void* taosArrayGetLast(const SArray* pArray) {
   return TARRAY_GET_ELEM(pArray, pArray->size - 1);
 }
 
-size_t taosArrayGetSize(const SArray* pArray) { return pArray->size; }
+size_t taosArrayGetSize(const SArray* pArray) {
+  if (pArray == NULL) {
+    return 0;
+  }
+  return pArray->size;
+}
 
 void taosArraySetSize(SArray* pArray, size_t size) {
   assert(size <= pArray->capacity);
@@ -296,7 +301,7 @@ SArray* taosArrayDup(const SArray* pSrc) {
 }
 
 void taosArrayClear(SArray* pArray) {
-  assert( pArray != NULL );
+  if (pArray == NULL) return;
   pArray->size = 0;
 }