diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 4e7fff06b6bd60f015764745d8d093046e812fd6..a1a9155d16d1a46b608e8ae0fe6fe999babc0e21 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -86,26 +86,32 @@ typedef struct STscObj {
   SAppInstInfo      *pAppInfo;
 } STscObj;
 
-typedef struct SClientResultInfo {
-  const char  *pMsg;
+typedef struct SReqResultInfo {
+  const char  *pRspMsg;
   const char  *pData;
   TAOS_FIELD  *fields;
-  int32_t      numOfCols;
-  int32_t      numOfRows;
-  int32_t      current;
+  uint32_t     numOfCols;
+
   int32_t     *length;
   TAOS_ROW     row;
   char       **pCol;
-} SClientResultInfo;
 
-typedef struct SReqBody {
-  tsem_t    rspSem;        // not used now
-  void*     fp;
-  void*     param;
-  int32_t   paramLen;
-  int64_t   execId;    // showId/queryId
-  SClientResultInfo* pResInfo;
-} SRequestBody;
+  uint32_t     numOfRows;
+  uint32_t     current;
+} SReqResultInfo;
+
+typedef struct SReqMsg {
+  void     *pMsg;
+  uint32_t  len;
+} SReqMsgInfo;
+
+typedef struct SRequestSendRecvBody {
+  tsem_t          rspSem;        // not used now
+  void*           fp;
+  int64_t         execId;        // showId/queryId
+  SReqMsgInfo     requestMsg;
+  SReqResultInfo  resInfo;
+} SRequestSendRecvBody;
 
 #define ERROR_MSG_BUF_DEFAULT_SIZE  512
 
@@ -115,7 +121,7 @@ typedef struct SRequestObj {
   STscObj         *pTscObj;
   SQueryExecMetric metric;
   char            *sqlstr;  // sql string
-  SRequestBody     body;
+  SRequestSendRecvBody     body;
   int64_t          self;
   char            *msgBuf;
   int32_t          code;
@@ -123,11 +129,10 @@ typedef struct SRequestObj {
 } SRequestObj;
 
 typedef struct SRequestMsgBody {
-  int32_t  msgType;
-  void    *pData;
-  int32_t  msgLen;
-  uint64_t requestId;
-  uint64_t requestObjRefId;
+  int32_t     msgType;
+  SReqMsgInfo msgInfo;
+  uint64_t    requestId;
+  uint64_t    requestObjRefId;
 } SRequestMsgBody;
 
 extern SAppInfo   appInfo;
@@ -158,7 +163,7 @@ TAOS *taos_connect_internal(const char *ip, const char *user, const char *pass,
 TAOS_RES *taos_query_l(TAOS *taos, const char *sql, int sqlLen);
 
 void* doFetchRow(SRequestObj* pRequest);
-void setResultDataPtr(SClientResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows);
+void setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows);
 
 #ifdef __cplusplus
 }
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 9532789ca0e14d7871545b0bb1c54747ddec3608..bab1f9cc9b0aa8ece40d6c3e8a5dccbe677aae3e 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -155,8 +155,7 @@ TAOS_RES *taos_query_l(TAOS *taos, const char *sql, int sqlLen) {
     code = qParseQuerySql(pRequest->sqlstr, sqlLen, pRequest->requestId, &type, &output, &outputLen, pRequest->msgBuf, ERROR_MSG_BUF_DEFAULT_SIZE);
     if (type == TSDB_SQL_CREATE_USER || type == TSDB_SQL_SHOW || type == TSDB_SQL_DROP_USER || type == TSDB_SQL_DROP_ACCT || type == TSDB_SQL_CREATE_DB || type == TSDB_SQL_CREATE_ACCT) {
       pRequest->type = type;
-      pRequest->body.param = output;
-      pRequest->body.paramLen = outputLen;
+      pRequest->body.requestMsg = (SReqMsgInfo){.pMsg = output, .len = outputLen};
 
       SRequestMsgBody body = {0};
       buildRequestMsgFp[type](pRequest, &body);
@@ -165,6 +164,8 @@ TAOS_RES *taos_query_l(TAOS *taos, const char *sql, int sqlLen) {
       sendMsgToServer(pTscObj->pTransporter, &pTscObj->pAppInfo->mgmtEp.epSet, &body, &transporterId);
 
       tsem_wait(&pRequest->body.rspSem);
+
+
       destroyRequestMsgBody(&body);
     } else {
       assert(0);
@@ -255,7 +256,7 @@ STscObj* taosConnectImpl(const char *ip, const char *user, const char *auth, con
 
 static int32_t buildConnectMsg(SRequestObj *pRequest, SRequestMsgBody* pMsgBody) {
   pMsgBody->msgType         = TSDB_MSG_TYPE_CONNECT;
-  pMsgBody->msgLen          = sizeof(SConnectMsg);
+  pMsgBody->msgInfo.len     = sizeof(SConnectMsg);
   pMsgBody->requestObjRefId = pRequest->self;
 
   SConnectMsg *pConnect = calloc(1, sizeof(SConnectMsg));
@@ -279,28 +280,28 @@ static int32_t buildConnectMsg(SRequestObj *pRequest, SRequestMsgBody* pMsgBody)
   pConnect->startTime = htobe64(appInfo.startTime);
   tstrncpy(pConnect->app, appInfo.appName, tListLen(pConnect->app));
 
-  pMsgBody->pData = pConnect;
+  pMsgBody->msgInfo.pMsg = pConnect;
   return 0;
 }
 
 static void destroyRequestMsgBody(SRequestMsgBody* pMsgBody) {
   assert(pMsgBody != NULL);
-  tfree(pMsgBody->pData);
+  tfree(pMsgBody->msgInfo.pMsg);
 }
 
 int32_t sendMsgToServer(void *pTransporter, SEpSet* epSet, const SRequestMsgBody *pBody, int64_t* pTransporterId) {
-  char *pMsg = rpcMallocCont(pBody->msgLen);
+  char *pMsg = rpcMallocCont(pBody->msgInfo.len);
   if (NULL == pMsg) {
     tscError("0x%"PRIx64" msg:%s malloc failed", pBody->requestId, taosMsg[pBody->msgType]);
     terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
     return -1;
   }
 
-  memcpy(pMsg, pBody->pData, pBody->msgLen);
+  memcpy(pMsg, pBody->msgInfo.pMsg, pBody->msgInfo.len);
   SRpcMsg rpcMsg = {
       .msgType = pBody->msgType,
       .pCont   = pMsg,
-      .contLen = pBody->msgLen,
+      .contLen = pBody->msgInfo.len,
       .ahandle = (void*) pBody->requestObjRefId,
       .handle  = NULL,
       .code    = 0
@@ -388,7 +389,7 @@ TAOS *taos_connect_l(const char *ip, int ipLen, const char *user, int userLen, c
 
 void* doFetchRow(SRequestObj* pRequest) {
   assert(pRequest != NULL);
-  SClientResultInfo* pResultInfo = pRequest->body.pResInfo;
+  SReqResultInfo* pResultInfo = &pRequest->body.resInfo;
 
   if (pResultInfo->pData == NULL || pResultInfo->current >= pResultInfo->numOfRows) {
     pRequest->type = TSDB_SQL_RETRIEVE_MNODE;
@@ -421,7 +422,7 @@ void* doFetchRow(SRequestObj* pRequest) {
   return pResultInfo->row;
 }
 
-void setResultDataPtr(SClientResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows) {
+void setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t numOfCols, int32_t numOfRows) {
   assert(numOfCols > 0 && pFields != NULL && pResultInfo != NULL);
   if (numOfRows == 0) {
     return;
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 21e632db8d5d3e5a5cb1885e85a0c50e12e9f3e7..8a75799ed78323c2cd63e97456e01858be60f30b 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -115,12 +115,7 @@ int  taos_field_count(TAOS_RES *res) {
   }
 
   SRequestObj* pRequest = (SRequestObj*) res;
-
-  SClientResultInfo* pResInfo = pRequest->body.pResInfo;
-  if (pResInfo == NULL) {
-    return 0;
-  }
-
+  SReqResultInfo* pResInfo = &pRequest->body.resInfo;
   return pResInfo->numOfCols;
 }
 
@@ -133,7 +128,7 @@ TAOS_FIELD *taos_fetch_fields(TAOS_RES *res) {
     return NULL;
   }
 
-  SClientResultInfo* pResInfo = ((SRequestObj*) res)->body.pResInfo;
+  SReqResultInfo* pResInfo = &(((SRequestObj*) res)->body.resInfo);
   return pResInfo->fields;
 }
 
@@ -248,7 +243,7 @@ int* taos_fetch_lengths(TAOS_RES *res) {
     return NULL;
   }
 
-  return ((SRequestObj*) res)->body.pResInfo->length;
+  return ((SRequestObj*) res)->body.resInfo.length;
 }
 
 const char *taos_data_type(int type) {
diff --git a/source/client/src/clientMsgHandler.c b/source/client/src/clientMsgHandler.c
index 247468274e96cad5ad759b616aa6a41a3194c926..e70dcc63b38f988c055253bed0436aba0834bf4e 100644
--- a/source/client/src/clientMsgHandler.c
+++ b/source/client/src/clientMsgHandler.c
@@ -2793,7 +2793,7 @@ static bool allVgroupInfoRetrieved(SQueryInfo* pQueryInfo) {
 
 int32_t buildConnectMsg(SRequestObj *pRequest, SRequestMsgBody* pMsgBody) {
   pMsgBody->msgType         = TSDB_MSG_TYPE_CONNECT;
-  pMsgBody->msgLen          = sizeof(SConnectMsg);
+  pMsgBody->msgInfo.len     = sizeof(SConnectMsg);
   pMsgBody->requestObjRefId = pRequest->self;
 
   SConnectMsg *pConnect = calloc(1, sizeof(SConnectMsg));
@@ -2817,7 +2817,7 @@ int32_t buildConnectMsg(SRequestObj *pRequest, SRequestMsgBody* pMsgBody) {
   pConnect->startTime = htobe64(appInfo.startTime);
   tstrncpy(pConnect->app, appInfo.appName, tListLen(pConnect->app));
 
-  pMsgBody->pData = pConnect;
+  pMsgBody->msgInfo.pMsg = pConnect;
   return 0;
 }
 
@@ -2858,17 +2858,14 @@ int processConnectRsp(SRequestObj *pRequest, const char* pMsg, int32_t msgLen) {
   pTscObj->pAppInfo->clusterId = pConnect->clusterId;
   atomic_add_fetch_64(&pTscObj->pAppInfo->numOfConns, 1);
 
-  pRequest->body.pResInfo = calloc(1, sizeof(SClientResultInfo));
-  pRequest->body.pResInfo->pMsg = pMsg;
-
+  pRequest->body.resInfo.pRspMsg = pMsg;
   tscDebug("0x%" PRIx64 " clusterId:%d, totalConn:%"PRId64, pRequest->requestId, pConnect->clusterId, pTscObj->pAppInfo->numOfConns);
   return 0;
 }
 
 int32_t doBuildMsgSupp(SRequestObj *pRequest, SRequestMsgBody* pMsgBody) {
   pMsgBody->requestObjRefId = pRequest->self;
-  pMsgBody->msgLen          = pRequest->body.paramLen;
-  pMsgBody->pData           = pRequest->body.param;
+  pMsgBody->msgInfo     = pRequest->body.requestMsg;
 
   switch(pRequest->type) {
     case TSDB_SQL_CREATE_USER:
@@ -2886,7 +2883,7 @@ int32_t doBuildMsgSupp(SRequestObj *pRequest, SRequestMsgBody* pMsgBody) {
     case TSDB_SQL_CREATE_DB: {
       pMsgBody->msgType = TSDB_MSG_TYPE_CREATE_DB;
 
-      SCreateDbMsg* pCreateMsg = pRequest->body.param;
+      SCreateDbMsg* pCreateMsg = pRequest->body.requestMsg.pMsg;
       SName name = {0};
       int32_t ret = tNameSetDbName(&name, pRequest->pTscObj->acctId, pCreateMsg->db, strnlen(pCreateMsg->db, tListLen(pCreateMsg->db)));
       if (ret != TSDB_CODE_SUCCESS) {
@@ -2925,12 +2922,8 @@ int32_t processShowRsp(SRequestObj *pRequest, const char* pMsg, int32_t msgLen)
     pFields[i].bytes = pSchema[i].bytes;
   }
 
-  if (pRequest->body.pResInfo == NULL) {
-    pRequest->body.pResInfo = calloc(1, sizeof(SClientResultInfo));
-  }
-
-  pRequest->body.pResInfo->pMsg = pMsg;
-  SClientResultInfo* pResInfo = pRequest->body.pResInfo;
+  pRequest->body.resInfo.pRspMsg = pMsg;
+  SReqResultInfo* pResInfo = &pRequest->body.resInfo;
 
   pResInfo->fields    = pFields;
   pResInfo->numOfCols = pMetaMsg->numOfColumns;
@@ -2944,27 +2937,27 @@ int32_t processShowRsp(SRequestObj *pRequest, const char* pMsg, int32_t msgLen)
 
 int buildRetrieveMnodeMsg(SRequestObj *pRequest, SRequestMsgBody* pMsgBody) {
   pMsgBody->msgType = TSDB_MSG_TYPE_SHOW_RETRIEVE;
-  pMsgBody->msgLen = sizeof(SRetrieveTableMsg);
+  pMsgBody->msgInfo.len = sizeof(SRetrieveTableMsg);
   pMsgBody->requestObjRefId = pRequest->self;
 
   SRetrieveTableMsg *pRetrieveMsg = calloc(1, sizeof(SRetrieveTableMsg));
   pRetrieveMsg->showId  = htonl(pRequest->body.execId);
 
-  pMsgBody->pData = pRetrieveMsg;
+  pMsgBody->msgInfo.pMsg = pRetrieveMsg;
   return TSDB_CODE_SUCCESS;
 }
 
 int32_t processRetrieveMnodeRsp(SRequestObj *pRequest, const char* pMsg, int32_t msgLen) {
   assert(msgLen >= sizeof(SRetrieveTableRsp));
 
-  tfree(pRequest->body.pResInfo->pMsg);
-  pRequest->body.pResInfo->pMsg = pMsg;
+  tfree(pRequest->body.resInfo.pRspMsg);
+  pRequest->body.resInfo.pRspMsg = pMsg;
 
   SRetrieveTableRsp *pRetrieve = (SRetrieveTableRsp *) pMsg;
   pRetrieve->numOfRows  = htonl(pRetrieve->numOfRows);
   pRetrieve->precision  = htons(pRetrieve->precision);
 
-  SClientResultInfo* pResInfo = pRequest->body.pResInfo;
+  SReqResultInfo* pResInfo = &pRequest->body.resInfo;
   pResInfo->numOfRows = pRetrieve->numOfRows;
   pResInfo->pData = pRetrieve->data;              // todo fix this in async model
 
diff --git a/source/client/src/tscEnv.c b/source/client/src/tscEnv.c
index 76c37ca2f1734e0e79dc025f9678df48c8fb8e24..182e330df7f9419c09ec1f9643e77df830a9a786 100644
--- a/source/client/src/tscEnv.c
+++ b/source/client/src/tscEnv.c
@@ -170,7 +170,7 @@ void* createRequest(STscObj* pObj, __taos_async_fn_t fp, void* param, int32_t ty
   pRequest->type       = type;
   pRequest->pTscObj    = pObj;
   pRequest->body.fp    = fp;
-  pRequest->body.param = param;
+//  pRequest->body.requestMsg. = param;
   pRequest->msgBuf     = calloc(1, ERROR_MSG_BUF_DEFAULT_SIZE);
   tsem_init(&pRequest->body.rspSem, 0, 0);
 
@@ -188,10 +188,7 @@ static void doDestroyRequest(void* p) {
   tfree(pRequest->sqlstr);
   tfree(pRequest->pInfo);
 
-  if (pRequest->body.pResInfo != NULL) {
-    tfree(pRequest->body.pResInfo->pMsg);
-    tfree(pRequest->body.pResInfo);
-  }
+  tfree(pRequest->body.resInfo.pRspMsg);
 
   deregisterRequest(pRequest);
   tfree(pRequest);
diff --git a/source/libs/parser/inc/astToMsg.h b/source/libs/parser/inc/astToMsg.h
index 32906f7800de1e724bc2ee1e43511f051ab93eeb..1771bdc0edbeeb649f2c02e583e6d525df20a894 100644
--- a/source/libs/parser/inc/astToMsg.h
+++ b/source/libs/parser/inc/astToMsg.h
@@ -5,6 +5,7 @@
 #include "taosmsg.h"
 
 SCreateUserMsg* buildUserManipulationMsg(SSqlInfo* pInfo, int32_t* outputLen, int64_t id, char* msgBuf, int32_t msgLen);
+SCreateAcctMsg* buildAcctManipulationMsg(SSqlInfo* pInfo, int32_t* outputLen, int64_t id, char* msgBuf, int32_t msgLen);
 SDropUserMsg* buildDropUserMsg(SSqlInfo* pInfo, int32_t* outputLen, int64_t id, char* msgBuf, int32_t msgLen);
 SShowMsg* buildShowMsg(SShowInfo* pShowInfo, int64_t id, char* msgBuf, int32_t msgLen);
 SCreateDbMsg* buildCreateDbMsg(SCreateDbInfo* pCreateDbInfo, char* msgBuf, int32_t msgLen);
diff --git a/source/libs/parser/src/astToMsg.c b/source/libs/parser/src/astToMsg.c
index 3f9d86737fb1fb76e2b2869bcb4cb9cf521e5c96..42ffbf3c064e60faf148022d2396b06507e4d055 100644
--- a/source/libs/parser/src/astToMsg.c
+++ b/source/libs/parser/src/astToMsg.c
@@ -24,6 +24,50 @@ SCreateUserMsg* buildUserManipulationMsg(SSqlInfo* pInfo, int32_t* outputLen, in
   return pMsg;
 }
 
+SCreateAcctMsg* buildAcctManipulationMsg(SSqlInfo* pInfo, int32_t* outputLen, int64_t id, char* msgBuf, int32_t msgLen) {
+  SCreateAcctMsg* pMsg = (SCreateAcctMsg*)calloc(1, sizeof(SCreateAcctMsg));
+  if (pMsg == NULL) {
+    //    tscError("0x%" PRIx64 " failed to malloc for query msg", id);
+    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
+    return NULL;
+  }
+
+  SCreateAcctMsg *pCreateMsg = (SCreateAcctMsg *) calloc(1, sizeof(SCreateAcctMsg));
+
+  SToken *pName = &pInfo->pMiscInfo->user.user;
+  SToken *pPwd = &pInfo->pMiscInfo->user.passwd;
+
+  strncpy(pCreateMsg->user, pName->z, pName->n);
+  strncpy(pCreateMsg->pass, pPwd->z, pPwd->n);
+
+  SCreateAcctInfo *pAcctOpt = &pInfo->pMiscInfo->acctOpt;
+
+  pCreateMsg->maxUsers = htonl(pAcctOpt->maxUsers);
+  pCreateMsg->maxDbs = htonl(pAcctOpt->maxDbs);
+  pCreateMsg->maxTimeSeries = htonl(pAcctOpt->maxTimeSeries);
+  pCreateMsg->maxStreams = htonl(pAcctOpt->maxStreams);
+//  pCreateMsg->maxPointsPerSecond = htonl(pAcctOpt->maxPointsPerSecond);
+  pCreateMsg->maxStorage = htobe64(pAcctOpt->maxStorage);
+//  pCreateMsg->maxQueryTime = htobe64(pAcctOpt->maxQueryTime);
+//  pCreateMsg->maxConnections = htonl(pAcctOpt->maxConnections);
+
+  if (pAcctOpt->stat.n == 0) {
+    pCreateMsg->accessState = -1;
+  } else {
+    if (pAcctOpt->stat.z[0] == 'r' && pAcctOpt->stat.n == 1) {
+      pCreateMsg->accessState = TSDB_VN_READ_ACCCESS;
+    } else if (pAcctOpt->stat.z[0] == 'w' && pAcctOpt->stat.n == 1) {
+      pCreateMsg->accessState = TSDB_VN_WRITE_ACCCESS;
+    } else if (strncmp(pAcctOpt->stat.z, "all", 3) == 0 && pAcctOpt->stat.n == 3) {
+      pCreateMsg->accessState = TSDB_VN_ALL_ACCCESS;
+    } else if (strncmp(pAcctOpt->stat.z, "no", 2) == 0 && pAcctOpt->stat.n == 2) {
+      pCreateMsg->accessState = 0;
+    }
+  }
+
+  *outputLen = sizeof(SCreateAcctMsg);
+  return pMsg;
+}
 SDropUserMsg* buildDropUserMsg(SSqlInfo* pInfo, int32_t *msgLen, int64_t id, char* msgBuf, int32_t msgBufLen) {
   SToken* pName = taosArrayGet(pInfo->pMiscInfo->a, 0);
   if (pName->n >= TSDB_USER_LEN) {
diff --git a/source/libs/parser/src/astValidate.c b/source/libs/parser/src/astValidate.c
index ba96c4a79638aaa5bdf26c68f46dc715daf181e3..accc786bf6787ba52b72721a5da143c4a3d46e86 100644
--- a/source/libs/parser/src/astValidate.c
+++ b/source/libs/parser/src/astValidate.c
@@ -4228,6 +4228,42 @@ int32_t qParserValidateDclSqlNode(SSqlInfo* pInfo, int64_t id, void** output, in
       break;
     }
 
+    case TSDB_SQL_CREATE_ACCT:
+    case TSDB_SQL_ALTER_ACCT: {
+      const char* msg1 = "invalid state option, available options[no, r, w, all]";
+      const char* msg2 = "invalid user/account name";
+      const char* msg3 = "name too long";
+
+      SToken* pName = &pInfo->pMiscInfo->user.user;
+      SToken* pPwd = &pInfo->pMiscInfo->user.passwd;
+
+      if (parserValidatePassword(pPwd, pMsgBuf) != TSDB_CODE_SUCCESS) {
+        return TSDB_CODE_TSC_INVALID_OPERATION;
+      }
+
+      if (pName->n >= TSDB_USER_LEN) {
+        return buildInvalidOperationMsg(pMsgBuf, msg3);
+      }
+
+      if (parserValidateNameToken(pName) != TSDB_CODE_SUCCESS) {
+        return buildInvalidOperationMsg(pMsgBuf, msg2);
+      }
+
+      SCreateAcctInfo* pAcctOpt = &pInfo->pMiscInfo->acctOpt;
+      if (pAcctOpt->stat.n > 0) {
+        if (pAcctOpt->stat.z[0] == 'r' && pAcctOpt->stat.n == 1) {
+        } else if (pAcctOpt->stat.z[0] == 'w' && pAcctOpt->stat.n == 1) {
+        } else if (strncmp(pAcctOpt->stat.z, "all", 3) == 0 && pAcctOpt->stat.n == 3) {
+        } else if (strncmp(pAcctOpt->stat.z, "no", 2) == 0 && pAcctOpt->stat.n == 2) {
+        } else {
+          return buildInvalidOperationMsg(pMsgBuf, msg1);
+        }
+      }
+
+      *output = buildAcctManipulationMsg(pInfo, outputLen, id, msgBuf, msgBufLen);
+      break;
+    }
+
     case TSDB_SQL_DROP_ACCT:
     case TSDB_SQL_DROP_USER: {
       *output = buildDropUserMsg(pInfo, outputLen, id, msgBuf, msgBufLen);