diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index 3e78da63de2f3a9726aad07ef7c7cc615ebda56e..5e6c5233f7a9d5d373fd9d8222df102499c4cb48 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -280,13 +280,22 @@ typedef struct SVgDataBlocks {
   char       *pData;        // SMsgDesc + SSubmitReq + SSubmitBlk + ...
 } SVgDataBlocks;
 
+typedef struct SStmtDataCtx {
+  uint64_t  tbUid;
+  SHashObj* pVgroupsHashObj;    // global
+  SHashObj* pTableBlockHashObj; // global
+  SHashObj* pSubTableHashObj;   // global
+  SArray* pTableDataBlocks;     // global
+} SStmtDataCtx;
+
 typedef struct SVnodeModifOpStmt {
-  ENodeType   nodeType;
-  ENodeType   sqlNodeType;
-  SArray*     pDataBlocks;         // data block for each vgroup, SArray<SVgDataBlocks*>.
-  uint8_t     payloadType;         // EPayloadType. 0: K-V payload for non-prepare insert, 1: rawPayload for prepare insert
-  uint32_t    insertType;          // insert data from [file|sql statement| bound statement]
-  const char* sql;                 // current sql statement position
+  ENodeType    nodeType;
+  ENodeType    sqlNodeType;
+  SArray*      pDataBlocks;         // data block for each vgroup, SArray<SVgDataBlocks*>.
+  uint8_t      payloadType;         // EPayloadType. 0: K-V payload for non-prepare insert, 1: rawPayload for prepare insert
+  uint32_t     insertType;          // insert data from [file|sql statement| bound statement]
+  const char*  sql;                 // current sql statement position
+  SStmtDataCtx stmtCtx;
 } SVnodeModifOpStmt;
 
 typedef struct SExplainOptions {
diff --git a/include/libs/parser/parser.h b/include/libs/parser/parser.h
index fef624288a7eff2ce9ca83447d20076e15b76149..eea9da4e520978ea1265a5a50ecd20b56d5788c8 100644
--- a/include/libs/parser/parser.h
+++ b/include/libs/parser/parser.h
@@ -22,6 +22,11 @@ extern "C" {
 
 #include "querynodes.h"
 
+typedef struct SStmtCallback {
+  TAOS_STMT* pStmt;
+  int32_t (*getTbNameFn)(TAOS_STMT*, char**);      
+} SStmtCallback;
+
 typedef struct SParseContext {
   uint64_t         requestId;
   int32_t          acctId;
@@ -34,6 +39,7 @@ typedef struct SParseContext {
   char            *pMsg;           // extended error message if exists to help identifying the problem in sql statement.
   int32_t          msgLen;         // max length of the msg
   struct SCatalog *pCatalog;
+  SStmtCallback   *pStmtCb;
 } SParseContext;
 
 typedef struct SCmdMsgInfo {
diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 60535e2f493a3bcb1769f067fb7e13a6fb715452..428dca96f8738f47b8711d033f2e94e09c6b2acf 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -132,6 +132,8 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_TSC_INVALID_JSON_TYPE         TAOS_DEF_ERROR_CODE(0, 0x0222)
 #define TSDB_CODE_TSC_VALUE_OUT_OF_RANGE        TAOS_DEF_ERROR_CODE(0, 0x0223)
 #define TSDB_CODE_TSC_INVALID_INPUT             TAOS_DEF_ERROR_CODE(0, 0X0224)
+#define TSDB_CODE_TSC_STMT_STATUS_ERROR         TAOS_DEF_ERROR_CODE(0, 0X0225)
+#define TSDB_CODE_TSC_STMT_TBNAME_ERROR         TAOS_DEF_ERROR_CODE(0, 0X0226)
 
 // mnode-common
 #define TSDB_CODE_MND_APP_ERROR                 TAOS_DEF_ERROR_CODE(0, 0x0300)
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 4e3299fd1ba9cb51628ce970380a1fe512cdf546..b352b65bea180cd4fb88f3ae8a3b7d903cb74f51 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -213,6 +213,7 @@ typedef struct SRequestObj {
   int32_t              sqlLen;
   int64_t              self;
   char*                msgBuf;
+  int32_t              msgBufLen;
   void*                pInfo;  // sql parse info, generated by parser module
   int32_t              code;
   SArray*              dbList;
diff --git a/source/client/inc/clientStmt.h b/source/client/inc/clientStmt.h
index c29361758dda67b079ca613651550c8d3ccb5ca8..3ff7c0006b3f69f8fe9e41ecbb9441bdc52425b3 100644
--- a/source/client/inc/clientStmt.h
+++ b/source/client/inc/clientStmt.h
@@ -26,21 +26,51 @@ typedef enum {
   STMT_TYPE_QUERY,
 } STMT_TYPE;
 
+typedef enum {
+  STMT_INIT = 1,
+  STMT_PREPARE,
+  STMT_SETTBNAME,
+  STMT_BIND,
+  STMT_BIND_COL,
+  STMT_ADD_BATCH,
+  STMT_EXECUTE
+} STMT_STATUS;
+
 typedef struct STscStmt {
-  STMT_TYPE type;
-  //int16_t  last;
-  //STscObj* taos;
-  //SSqlObj* pSql;
+  STMT_TYPE    type;
+  STMT_STATUS  status;
+  STscObj*     taos;
+  SRequestObj* pRequest;
+  SQuery*      pQuery;
+  char*        sql;
+  int32_t      sqlLen;
+  char*        tbName;
+  TAOS_BIND*   bindTags;
   //SMultiTbStmt mtb;
   //SNormalStmt normal;
 
   //int numOfRows;
 } STscStmt;
 
+
 #define STMT_ERR_RET(c) do { int32_t _code = c; if (_code != TSDB_CODE_SUCCESS) { terrno = _code; return _code; } } while (0)
 #define STMT_RET(c) do { int32_t _code = c; if (_code != TSDB_CODE_SUCCESS) { terrno = _code; } return _code; } while (0)
 #define STMT_ERR_JRET(c) do { code = c; if (code != TSDB_CODE_SUCCESS) { terrno = code; goto _return; } } while (0)
 
+#define STMT_CHK_STATUS(_stmt, _status, _v) do {
+  switch (_status) {
+    case STMT_INIT:
+      if ((_stmt)->status != 0) return (_v);
+      break;
+    case STMT_PREPARE:
+      if ((_stmt)->status != STMT_INIT) STMT_ERR_RET(_v);
+      break;
+    case STMT_SETTBNAME:
+      break;
+  }
+} while (0)
+
+
 TAOS_STMT *stmtInit(TAOS *taos);
 int stmtClose(TAOS_STMT *stmt);
 int stmtExec(TAOS_STMT *stmt);
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 7f413bdabcf9dc926f56f9de1c3fc9978d77d4ee..e0e2e9d2c8826a25f80c831e6cb939eb4f77aa3a 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -186,6 +186,7 @@ void *createRequest(STscObj *pObj, __taos_async_fn_t fp, void *param, int32_t ty
   pRequest->pTscObj = pObj;
   pRequest->body.fp = fp;  // not used it yet
   pRequest->msgBuf = taosMemoryCalloc(1, ERROR_MSG_BUF_DEFAULT_SIZE);
+  pRequest->msgBufLen = ERROR_MSG_BUF_DEFAULT_SIZE;
   tsem_init(&pRequest->body.rspSem, 0, 0);
 
   registerRequest(pRequest);
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 0252dfe6347fdd4244a561fec90da03b510b57cc..37597ba8e98efa07c68809b23c850f78eb0fcf8d 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -143,7 +143,7 @@ int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj*
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery) {
+int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery, SStmtCallback* pStmtCb) {
   STscObj* pTscObj = pRequest->pTscObj;
 
   SParseContext cxt = {
@@ -156,6 +156,7 @@ int32_t parseSql(SRequestObj* pRequest, bool topicQuery, SQuery** pQuery) {
       .pMsg = pRequest->msgBuf,
       .msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
       .pTransporter = pTscObj->pAppInfo->pTransporter,
+      .pStmtCb = pStmtCb,
   };
 
   cxt.mgmtEpSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
@@ -289,7 +290,7 @@ SRequestObj* execQueryImpl(STscObj* pTscObj, const char* sql, int sqlLen) {
 
   int32_t code = buildRequest(pTscObj, sql, sqlLen, &pRequest);
   if (TSDB_CODE_SUCCESS == code) {
-    code = parseSql(pRequest, false, &pQuery);
+    code = parseSql(pRequest, false, &pQuery, NULL);
   }
 
   if (TSDB_CODE_SUCCESS == code) {
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 84f9c7ac30042788a2d08b9321769638395db97a..56132c304109acc1a397b42ab9954aec8d126446 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -569,84 +569,80 @@ TAOS_STMT *taos_stmt_init(TAOS *taos) {
   return stmtInit(taos);
 }
 
-int taos_stmt_close(TAOS_STMT *stmt) {
-  if (stmt == NULL) {
+int taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length) {
+  if (stmt == NULL || sql == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtClose(stmt);
+  return stmtPrepare(stmt, sql, length);
 }
 
-int taos_stmt_execute(TAOS_STMT *stmt) {
-  if (stmt == NULL) {
+int taos_stmt_set_tbname_tags(TAOS_STMT *stmt, const char *name, TAOS_BIND *tags) {
+  if (stmt == NULL || name == NULL || tags == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtExec(stmt);
+  return stmtSetTbNameTags(stmt, name, tags);
 }
 
-char *taos_stmt_errstr(TAOS_STMT *stmt) {
-  if (stmt == NULL) {
+int taos_stmt_set_tbname(TAOS_STMT *stmt, const char *name) {
+  if (stmt == NULL || name == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
-    return NULL;
+    return terrno;
   }
 
-  return stmtErrstr(stmt);
+  return stmtSetTbNameTags(stmt, name, NULL);
 }
 
-int taos_stmt_affected_rows(TAOS_STMT *stmt) {
-  if (stmt == NULL) {
+int taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_BIND *bind) {
+  if (stmt == NULL || bind == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
-    return 0;
+    return terrno;
   }
 
-  return stmtAffectedRows(stmt);
+  return stmtBind(stmt, bind);
 }
 
-int taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_BIND *bind) {
+int taos_stmt_bind_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
   if (stmt == NULL || bind == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtBind(stmt, bind);
-}
-
-int taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length) {
-  if (stmt == NULL || sql == NULL) {
-    tscError("NULL parameter for %s", __FUNCTION__);
+  if (bind->num <= 0 || bind->num > INT16_MAX) {
+    tscError("invalid bind num %d", bind->num);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtPrepare(stmt, sql, length);
+  return stmtBindBatch(stmt, bind);
 }
 
-int taos_stmt_set_tbname_tags(TAOS_STMT *stmt, const char *name, TAOS_BIND *tags) {
-  if (stmt == NULL || name == NULL || tags == NULL) {
+int taos_stmt_add_batch(TAOS_STMT *stmt) {
+  if (stmt == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtSetTbNameTags(stmt, name, tags);
+  return stmtAddBatch(stmt);
 }
 
-int taos_stmt_set_tbname(TAOS_STMT *stmt, const char *name) {
-  if (stmt == NULL || name == NULL) {
+int taos_stmt_execute(TAOS_STMT *stmt) {
+  if (stmt == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtSetTbNameTags(stmt, name, NULL);
+  return stmtExec(stmt);
 }
 
 int taos_stmt_is_insert(TAOS_STMT *stmt, int *insert) {
@@ -669,34 +665,47 @@ int taos_stmt_num_params(TAOS_STMT *stmt, int *nums) {
   return stmtGetParamNum(stmt, nums);
 }
 
-int taos_stmt_add_batch(TAOS_STMT *stmt) {
+TAOS_RES *taos_stmt_use_result(TAOS_STMT *stmt) {
   if (stmt == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
-    return terrno;
+    return NULL;
   }
 
-  return stmtAddBatch(stmt);
+  return stmtUseResult(stmt);
 }
 
-TAOS_RES *taos_stmt_use_result(TAOS_STMT *stmt) {
+char *taos_stmt_errstr(TAOS_STMT *stmt) {
   if (stmt == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return NULL;
   }
 
-  return stmtUseResult(stmt);
+  return stmtErrstr(stmt);
 }
 
-int taos_stmt_bind_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
-  if (stmt == NULL || bind == NULL) {
+int taos_stmt_affected_rows(TAOS_STMT *stmt) {
+  if (stmt == NULL) {
+    tscError("NULL parameter for %s", __FUNCTION__);
+    terrno = TSDB_CODE_INVALID_PARA;
+    return 0;
+  }
+
+  return stmtAffectedRows(stmt);
+}
+
+
+
+
+int taos_stmt_close(TAOS_STMT *stmt) {
+  if (stmt == NULL) {
     tscError("NULL parameter for %s", __FUNCTION__);
     terrno = TSDB_CODE_INVALID_PARA;
     return terrno;
   }
 
-  return stmtBindBatch(stmt, bind);
+  return stmtClose(stmt);
 }
 
 
diff --git a/source/client/src/clientStmt.c b/source/client/src/clientStmt.c
index 8c4cff92514cc8c850c9a25458865c1741cf2045..a43ffdf31e7e7a8e5e332c8223c7afb9e26a76bb 100644
--- a/source/client/src/clientStmt.c
+++ b/source/client/src/clientStmt.c
@@ -4,11 +4,23 @@
 #include "clientStmt.h"
 #include "tdef.h"
 
+int32_t stmtGetTbName(TAOS_STMT *stmt, char **tbName) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+
+  if (NULL == pStmt->tbName) {
+    tscError("no table name set");
+    STMT_ERR_RET(TSDB_CODE_TSC_STMT_TBNAME_ERROR);
+  }
+
+  *tbName = pStmt->tbName;
+
+  return TSDB_CODE_SUCCESS;
+}
+
 TAOS_STMT *stmtInit(TAOS *taos) {
   STscObj* pObj = (STscObj*)taos;
   STscStmt* pStmt = NULL;
 
-#if 0
   pStmt = taosMemoryCalloc(1, sizeof(STscStmt));
   if (pStmt == NULL) {
     terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
@@ -16,38 +28,64 @@ TAOS_STMT *stmtInit(TAOS *taos) {
     return NULL;
   }
   pStmt->taos = pObj;
+  pStmt->status = STMT_INIT;
 
-  SSqlObj* pSql = calloc(1, sizeof(SSqlObj));
+  return pStmt;
+}
 
-  if (pSql == NULL) {
-    free(pStmt);
-    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
-    tscError("failed to allocate memory for statement");
-    return NULL;
+int stmtPrepare(TAOS_STMT *stmt, const char *sql, unsigned long length) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+
+  STMT_CHK_STATUS(stmt, STMT_PREPARE, TSDB_CODE_TSC_STMT_STATUS_ERROR);
+  
+  pStmt->sql = strndup(sql, length);
+  pStmt->sqlLen = length;
+
+  return TSDB_CODE_SUCCESS;
+}
+
+
+int stmtSetTbNameTags(TAOS_STMT *stmt, const char *tbName, TAOS_BIND *tags) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+
+  STMT_CHK_STATUS(stmt, STMT_SETTBNAME, TSDB_CODE_TSC_STMT_STATUS_ERROR);
+
+  if (tbName) {
+    pStmt->tbName = strdup(tbName);
   }
 
-  if (TSDB_CODE_SUCCESS != tscAllocPayload(&pSql->cmd, TSDB_DEFAULT_PAYLOAD_SIZE)) {
-    free(pSql);
-    free(pStmt);
-    terrno = TSDB_CODE_TSC_OUT_OF_MEMORY;
-    tscError("failed to malloc payload buffer");
-    return NULL;
+  if (tags) {
+    pStmt->bindTags = tags;
   }
 
-  tsem_init(&pSql->rspSem, 0, 0);
-  pSql->signature   = pSql;
-  pSql->pTscObj     = pObj;
-  pSql->maxRetry    = TSDB_MAX_REPLICA;
-  pStmt->pSql       = pSql;
-  pStmt->last       = STMT_INIT;
-  pStmt->numOfRows  = 0;
-  registerSqlObj(pSql);
-#endif
+  return TSDB_CODE_SUCCESS;
+}
 
-  return pStmt;
+int stmtBindBatch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+
+  STMT_CHK_STATUS(stmt, STMT_BIND, TSDB_CODE_TSC_STMT_STATUS_ERROR);
+
+  if (NULL == pStmt->pRequest) {
+    SStmtCallback stmtCb = {.pStmt = stmt, .getTbNameFn = stmtGetTbName};
+
+    STMT_ERR_RET(buildRequest(pStmt->taos, pStmt->sql, pStmt->sqlLen, &pStmt->pRequest));
+    STMT_ERR_RET(parseSql(pStmt->pRequest, false, &pStmt->pQuery, &stmtCb));
+  }
+
+  qBindStmtData(pStmt->pQuery, bind, pStmt->pRequest->msgBuf, pStmt->pRequest->msgBufLen);
+  
+  return TSDB_CODE_SUCCESS;
 }
 
-int stmtClose(TAOS_STMT *stmt) {
+
+int stmtAddBatch(TAOS_STMT *stmt) {
+  STscStmt* pStmt = (STscStmt*)stmt;
+
+  STMT_CHK_STATUS(stmt, STMT_BIND, TSDB_CODE_TSC_STMT_STATUS_ERROR);
+
+  qBuildStmtOutput(pStmt->pQuery);
+  
   return TSDB_CODE_SUCCESS;
 }
 
@@ -55,23 +93,22 @@ int stmtExec(TAOS_STMT *stmt) {
   return TSDB_CODE_SUCCESS;
 }
 
-char *stmtErrstr(TAOS_STMT *stmt) {
-  return NULL;
-}
 
-int stmtAffectedRows(TAOS_STMT *stmt) {
+int stmtClose(TAOS_STMT *stmt) {
   return TSDB_CODE_SUCCESS;
 }
 
-int stmtBind(TAOS_STMT *stmt, TAOS_BIND *bind) {
-  return TSDB_CODE_SUCCESS;
-}
+char *stmtErrstr(TAOS_STMT *stmt) {
+  STscStmt* pStmt = (STscStmt*)stmt;
 
-int stmtPrepare(TAOS_STMT *stmt, const char *sql, unsigned long length) {
-  return TSDB_CODE_SUCCESS;
+  if (stmt == NULL) {
+    return (char*) tstrerror(terrno);
+  }
+
+  return taos_errstr(pStmt->pRequest);
 }
 
-int stmtSetTbNameTags(TAOS_STMT *stmt, const char *name, TAOS_BIND *tags) {
+int stmtAffectedRows(TAOS_STMT *stmt) {
   return TSDB_CODE_SUCCESS;
 }
 
@@ -83,17 +120,9 @@ int stmtGetParamNum(TAOS_STMT *stmt, int *nums) {
   return TSDB_CODE_SUCCESS;
 }
 
-int stmtAddBatch(TAOS_STMT *stmt) {
-  return TSDB_CODE_SUCCESS;
-}
-
 TAOS_RES *stmtUseResult(TAOS_STMT *stmt) {
   return NULL;
 }
 
-int stmtBindBatch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind) {
-  return TSDB_CODE_SUCCESS;
-}
-
 
 
diff --git a/source/libs/parser/inc/parInsertData.h b/source/libs/parser/inc/parInsertData.h
index ee17de50e06ba54dafb731e389937ad3e96ecef9..b3440eff70a9577226ef8d5a9149aaa622809df8 100644
--- a/source/libs/parser/inc/parInsertData.h
+++ b/source/libs/parser/inc/parInsertData.h
@@ -89,7 +89,7 @@ static FORCE_INLINE int32_t getExtendedRowSize(STableDataBlocks *pBlock) {
          (int32_t)TD_BITMAP_BYTES(pTableInfo->numOfColumns - 1);
 }
 
-static FORCE_INLINE void getSTSRowAppendInfo(SSchema *pSchema, uint8_t rowType, SParsedDataColInfo *spd, col_id_t idx,
+static FORCE_INLINE void getSTSRowAppendInfo(uint8_t rowType, SParsedDataColInfo *spd, col_id_t idx,
                                              int32_t *toffset, col_id_t *colIdx) {
   col_id_t schemaIdx = 0;
   if (IS_DATA_COL_ORDERED(spd)) {
diff --git a/source/libs/parser/src/parInsert.c b/source/libs/parser/src/parInsert.c
index 9a0483cd3323411e3d4347ca771d4cf064b87be6..9be821d3210180fb2f033e9cd3c932e36a4eedb4 100644
--- a/source/libs/parser/src/parInsert.c
+++ b/source/libs/parser/src/parInsert.c
@@ -63,6 +63,7 @@ typedef struct SInsertParseContext {
   SArray* pVgDataBlocks;        // global
   int32_t totalNum;
   SVnodeModifOpStmt* pOutput;
+  SStmtCallback* pStmtCb;
 } SInsertParseContext;
 
 typedef int32_t (*_row_append_fn_t)(SMsgBuf* pMsgBuf, const void *value, int32_t len, void *param);
@@ -453,8 +454,7 @@ static int32_t parseValueToken(char** end, SToken* pToken, SSchema* pSchema, int
 
   if (isNullStr(pToken)) {
     if (TSDB_DATA_TYPE_TIMESTAMP == pSchema->type && PRIMARYKEY_TIMESTAMP_COL_ID == pSchema->colId) {
-      int64_t tmpVal = 0;
-      return func(pMsgBuf, &tmpVal, pSchema->bytes, param);
+      return buildSyntaxErrMsg(pMsgBuf, "primary timestamp should not be null", pToken->z);
     }
 
     return func(pMsgBuf, NULL, 0, param);
@@ -872,8 +872,22 @@ static int parseOneRow(SInsertParseContext* pCxt, STableDataBlocks* pDataBlocks,
   for (int i = 0; i < spd->numOfBound; ++i) {
     NEXT_TOKEN_WITH_PREV(pCxt->pSql, sToken);
     SSchema* pSchema = &schema[spd->boundColumns[i] - 1];
+
+    if (sToken.type == TK_NK_QUESTION) {
+      isParseBindParam = true;
+      if (NULL == pCxt->pStmtCb) {
+        return buildSyntaxErrMsg(&pCxt->msg, "? only used in stmt", sToken.z);
+      }
+
+      continue;
+    }
+
+    if (isParseBindParam) {
+      return buildInvalidOperationMsg(&pCxt->msg, "no mix usage for ? and values");
+    }
+    
     param.schema = pSchema;
-    getSTSRowAppendInfo(schema, pBuilder->rowType, spd, i, &param.toffset, &param.colIdx);
+    getSTSRowAppendInfo(pBuilder->rowType, spd, i, &param.toffset, &param.colIdx);
     CHECK_CODE(parseValueToken(&pCxt->pSql, &sToken, pSchema, timePrec, tmpTokenBuf, MemRowAppend, &param, &pCxt->msg));
 
     if (PRIMARYKEY_TIMESTAMP_COL_ID == pSchema->colId) {
@@ -1005,11 +1019,15 @@ static void destroyInsertParseContext(SInsertParseContext* pCxt) {
 //       VALUES (field1_value, ...) [(field1_value2, ...) ...] | FILE csv_file_path
 //   [...];
 static int32_t parseInsertBody(SInsertParseContext* pCxt) {
+  int32_t tbNum = 0;
+  
   // for each table
   while (1) {
     destroyInsertParseContextForTable(pCxt);
 
     SToken sToken;
+    char *tbName = NULL;
+
     // pSql -> tb_name ...
     NEXT_TOKEN(pCxt->pSql, sToken);
 
@@ -1021,6 +1039,21 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
       break;
     }
 
+    if (TSDB_QUERY_HAS_TYPE(pCxt->pOutput->insertType, TSDB_QUERY_TYPE_STMT_INSERT) && tbNum > 0) {
+      return buildInvalidOperationMsg(&pCxt->msg, "single table allowed in one stmt");;
+    }
+
+    if (TK_NK_QUESTION == sToken.type) {
+      if (pCxt->pStmtCb) {
+        CHECK_CODE((*pCxt->pStmtCb->getTbNameFn)(pCxt->pStmtCb->pStmt, &tbName));
+        
+        sToken.z = tbName;
+        sToken.n = strlen(tbName);
+      } else {
+        return buildSyntaxErrMsg(&pCxt->msg, "? only used in stmt", sToken.z);
+      }
+    }
+    
     SToken tbnameToken = sToken;
     NEXT_TOKEN(pCxt->pSql, sToken);
 
@@ -1046,6 +1079,8 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
       // pSql -> (field1_value, ...) [(field1_value2, ...) ...]
       CHECK_CODE(parseValuesClause(pCxt, dataBuf));
       pCxt->pOutput->insertType = TSDB_QUERY_TYPE_INSERT;
+
+      tbNum++;
       continue;
     }
 
@@ -1058,13 +1093,31 @@ static int32_t parseInsertBody(SInsertParseContext* pCxt) {
       }
       // todo
       pCxt->pOutput->insertType = TSDB_QUERY_TYPE_FILE_INSERT;
+
+      tbNum++;
       continue;
     }
 
     return buildSyntaxErrMsg(&pCxt->msg, "keyword VALUES or FILE is expected", sToken.z);
   }
+  
+  if (TSDB_QUERY_HAS_TYPE(pCxt->pOutput->insertType, TSDB_QUERY_TYPE_STMT_INSERT)) {
+    pCxt->pOutput->stmtCtx.tbUid = pCxt->pTableMeta->uid;
+    pCxt->pOutput->stmtCtx.pVgroupsHashObj = pCxt->pVgroupsHashObj;
+    pCxt->pOutput->stmtCtx.pTableBlockHashObj = pCxt->pTableBlockHashObj;
+    pCxt->pOutput->stmtCtx.pSubTableHashObj = pCxt->pSubTableHashObj;
+    pCxt->pOutput->stmtCtx.pTableDataBlocks = pCxt->pTableDataBlocks;
+
+    pCxt->pVgroupsHashObj = NULL;
+    pCxt->pTableBlockHashObj = NULL;
+    pCxt->pSubTableHashObj = NULL;
+    pCxt->pTableDataBlocks = NULL;
+    
+    return TSDB_CODE_SUCCESS;
+  }
+  
   // merge according to vgId
-  if (!TSDB_QUERY_HAS_TYPE(pCxt->pOutput->insertType, TSDB_QUERY_TYPE_STMT_INSERT) && taosHashGetSize(pCxt->pTableBlockHashObj) > 0) {
+  if (taosHashGetSize(pCxt->pTableBlockHashObj) > 0) {
     CHECK_CODE(mergeTableDataBlocks(pCxt->pTableBlockHashObj, pCxt->pOutput->payloadType, &pCxt->pVgDataBlocks));
   }
   return buildOutput(pCxt);
@@ -1086,7 +1139,8 @@ int32_t parseInsertSql(SParseContext* pContext, SQuery** pQuery) {
     .pTableBlockHashObj = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), true, false),
     .pSubTableHashObj = taosHashInit(128, taosGetDefaultHashFunction(TSDB_DATA_TYPE_VARCHAR), true, false),
     .totalNum = 0,
-    .pOutput = (SVnodeModifOpStmt*)nodesMakeNode(QUERY_NODE_VNODE_MODIF_STMT)
+    .pOutput = (SVnodeModifOpStmt*)nodesMakeNode(QUERY_NODE_VNODE_MODIF_STMT),
+    .pStmtCb = pContext->pStmtCb
   };
 
   if (NULL == context.pVgroupsHashObj || NULL == context.pTableBlockHashObj ||
@@ -1094,6 +1148,10 @@ int32_t parseInsertSql(SParseContext* pContext, SQuery** pQuery) {
     return TSDB_CODE_TSC_OUT_OF_MEMORY;
   }
 
+  if (pContext->pStmtCb) {
+    TSDB_QUERY_SET_TYPE(context.pOutput->insertType, TSDB_QUERY_TYPE_STMT_INSERT);
+  }
+
   *pQuery = taosMemoryCalloc(1, sizeof(SQuery));
   if (NULL == *pQuery) {
     return TSDB_CODE_OUT_OF_MEMORY;
diff --git a/source/libs/parser/src/parInsertData.c b/source/libs/parser/src/parInsertData.c
index 088b25d5448665de9d84ae94c023ee8fef41e711..7d9adbd16ca680ee86c2c1054c80068a760bc877 100644
--- a/source/libs/parser/src/parInsertData.c
+++ b/source/libs/parser/src/parInsertData.c
@@ -506,6 +506,28 @@ int32_t mergeTableDataBlocks(SHashObj* pHashObj, uint8_t payloadType, SArray** p
   return TSDB_CODE_SUCCESS;
 }
 
+int32_t allocateMemForSize(STableDataBlocks *pDataBlock, int32_t allSize) {
+  size_t    remain = pDataBlock->nAllocSize - pDataBlock->size;
+  uint32_t nAllocSizeOld = pDataBlock->nAllocSize;
+  
+  // expand the allocated size
+  if (remain < allSize) {
+    pDataBlock->nAllocSize = (pDataBlock->size + allSize) * 1.5;
+
+    char *tmp = taosMemoryRealloc(pDataBlock->pData, (size_t)pDataBlock->nAllocSize);
+    if (tmp != NULL) {
+      pDataBlock->pData = tmp;
+      memset(pDataBlock->pData + pDataBlock->size, 0, pDataBlock->nAllocSize - pDataBlock->size);
+    } else {
+      // do nothing, if allocate more memory failed
+      pDataBlock->nAllocSize = nAllocSizeOld;
+      return TSDB_CODE_TSC_OUT_OF_MEMORY;
+    }
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
 int32_t allocateMemIfNeed(STableDataBlocks *pDataBlock, int32_t rowSize, int32_t * numOfRows) {
   size_t    remain = pDataBlock->nAllocSize - pDataBlock->size;
   const int factor = 5;
diff --git a/source/libs/parser/src/parser.c b/source/libs/parser/src/parser.c
index ebe76cc1293f16783517c51e3e2b509be4849ca8..57f2d3801cfff80d08ace0d3257d137c9e9e8330 100644
--- a/source/libs/parser/src/parser.c
+++ b/source/libs/parser/src/parser.c
@@ -51,6 +51,98 @@ int32_t qParseQuerySql(SParseContext* pCxt, SQuery** pQuery) {
   return code;
 }
 
+int32_t qBindStmtData(SQuery* pQuery, TAOS_MULTI_BIND *bind, char *msgBuf, int32_t msgBufLen) {
+  SVnodeModifOpStmt *modifyNode = (SVnodeModifOpStmt *)pQuery->pRoot;
+  SStmtDataCtx *pCtx = &modifyNode->stmtCtx;
+  STableDataBlocks *pDataBlock = (STableDataBlocks**)taosHashGet(pCtx->pTableBlockHashObj, (const char*)&pCtx->tbUid, sizeof(pCtx->tbUid));
+  if (NULL == pDataBlock) {
+    return TSDB_CODE_QRY_APP_ERROR;
+  }
+  
+  SSchema* pSchema = getTableColumnSchema(pDataBlock->pTableMeta);
+  int32_t extendedRowSize = getExtendedRowSize(pDataBlock);
+  SParsedDataColInfo* spd = &pDataBlock->boundColumnInfo;
+  SRowBuilder*        pBuilder = &pDataBlock->rowBuilder;
+  SMemParam param = {.rb = pBuilder};
+  SMsgBuf pBuf = {.buf = msgBuf, .len = msgBufLen}; 
+
+  CHECK_CODE(allocateMemForSize(pDataBlock, extendedRowSize * bind->num);
+  
+  for (int32_t r = 0; r < bind->num; ++r) {
+    STSRow* row = (STSRow*)(pDataBlock->pData + pDataBlock->size);  // skip the SSubmitBlk header
+    tdSRowResetBuf(pBuilder, row);
+    
+    // 1. set the parsed value from sql string
+    for (int c = 0; c < spd->numOfBound; ++c) {
+      SSchema* pColSchema = &pSchema[spd->boundColumns[c] - 1];
+      
+      param.schema = pColSchema;
+      getSTSRowAppendInfo(pBuilder->rowType, spd, c, &param.toffset, &param.colIdx);
+
+      if (bind[c].is_null && bind[c].is_null[r]) {
+        CHECK_CODE(MemRowAppend(&pBuf, NULL, 0, &param));
+      } else {
+        int32_t colLen = pColSchema->bytes;
+        if (IS_VAR_DATA_TYPE(pColSchema->type)) {
+          colLen = bind[c].length[r];
+        }
+        
+        CHECK_CODE(MemRowAppend(&pBuf, (char *)bind[c].buffer + bind[c].buffer_length * r, colLen, &param));
+      }
+    
+      if (PRIMARYKEY_TIMESTAMP_COL_ID == pColSchema->colId) {
+        TSKEY tsKey = TD_ROW_KEY(row);
+        checkTimestamp(pDataBlock, (const char *)&tsKey);
+      }
+    }
+    
+    // set the null value for the columns that do not assign values
+    if ((spd->numOfBound < spd->numOfCols) && TD_IS_TP_ROW(row)) {
+      for (int32_t i = 0; i < spd->numOfCols; ++i) {
+        if (spd->cols[i].valStat == VAL_STAT_NONE) {  // the primary TS key is not VAL_STAT_NONE
+          tdAppendColValToTpRow(pBuilder, TD_VTYPE_NONE, getNullValue(pSchema[i].type), true, pSchema[i].type, i,
+                                spd->cols[i].toffset);
+        }
+      }
+    }
+    
+    pDataBlock->size += extendedRowSize;
+  }
+  
+  SSubmitBlk *pBlocks = (SSubmitBlk *)(pDataBlock->pData);
+  if (TSDB_CODE_SUCCESS != setBlockInfo(pBlocks, pDataBlock, bind->num)) {
+    return buildInvalidOperationMsg(&pBuf, "too many rows in sql, total number of rows should be less than 32767");
+  }
+
+  return TSDB_CODE_SUCCESS;
+}
+
+int32_t qBuildStmtOutput(SQuery* pQuery) {
+  SVnodeModifOpStmt *modifyNode = (SVnodeModifOpStmt *)pQuery->pRoot;
+  SStmtDataCtx *pCtx = &modifyNode->stmtCtx;
+  int32_t code = 0;
+  SInsertParseContext insertCtx = {
+    .pVgroupsHashObj = pCtx->pVgroupsHashObj;
+    .pTableBlockHashObj = pCtx->pTableBlockHashObj;
+    .pSubTableHashObj = pCtx->pSubTableHashObj;
+    .pTableDataBlocks = pCtx->pTableDataBlocks;
+  };
+  
+  // merge according to vgId
+  if (taosHashGetSize(pCtx->pTableBlockHashObj) > 0) {
+    CHECK_CODE_GOTO(mergeTableDataBlocks(pCtx->pTableBlockHashObj, modifyNode->payloadType, &insertCtx.pVgDataBlocks), _return);
+  }
+  
+  code = buildOutput(&insertCtx);
+
+_return:
+
+  destroyInsertParseContext(&insertCtx);
+
+  return code;
+}
+
+
 void qDestroyQuery(SQuery* pQueryNode) {
   if (NULL == pQueryNode) {
     return;
@@ -68,4 +160,4 @@ void qDestroyQuery(SQuery* pQueryNode) {
 
 int32_t qExtractResultSchema(const SNode* pRoot, int32_t* numOfCols, SSchema** pSchema) {
   return extractResultSchema(pRoot, numOfCols, pSchema);
-}
\ No newline at end of file
+}
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index ded42365b6e6d188b23cb13751ce3eca68798ccd..6fe272de8af35e787be3a6c519d1197e125ca69f 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -138,6 +138,8 @@ TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_JSON,             "Invalid JSON format")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_JSON_TYPE,        "Invalid JSON data type")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_VALUE_OUT_OF_RANGE,       "Value out of range")
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_INPUT,            "Invalid tsc input")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_STMT_STATUS_ERROR,        "Stmt API usage error")
+TAOS_DEFINE_ERROR(TSDB_CODE_TSC_STMT_TBNAME_ERROR,        "Stmt table name not set")
 
 // mnode-common
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_APP_ERROR,                "Mnode internal error")