diff --git a/example/src/tmq.c b/example/src/tmq.c
index ca80c8fe5a..85dea5b382 100644
--- a/example/src/tmq.c
+++ b/example/src/tmq.c
@@ -19,8 +19,8 @@
 #include <time.h>
 #include "taos.h"
 
-static int  running = 1;
-static void msg_process(tmq_message_t* message) { tmqShowMsg(message); }
+static int running = 1;
+/*static void msg_process(tmq_message_t* message) { tmqShowMsg(message); }*/
 
 int32_t init_env() {
   TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
@@ -166,11 +166,11 @@ void basic_consume_loop(tmq_t* tmq, tmq_list_t* topics) {
   int32_t cnt = 0;
   /*clock_t startTime = clock();*/
   while (running) {
-    tmq_message_t* tmqmessage = tmq_consumer_poll(tmq, 500);
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 500);
     if (tmqmessage) {
       cnt++;
-      printf("get data\n");
-      msg_process(tmqmessage);
+      /*printf("get data\n");*/
+      /*msg_process(tmqmessage);*/
       tmq_message_destroy(tmqmessage);
       /*} else {*/
       /*break;*/
@@ -198,9 +198,9 @@ void sync_consume_loop(tmq_t* tmq, tmq_list_t* topics) {
   }
 
   while (running) {
-    tmq_message_t* tmqmessage = tmq_consumer_poll(tmq, 1000);
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 1000);
     if (tmqmessage) {
-      msg_process(tmqmessage);
+      /*msg_process(tmqmessage);*/
       tmq_message_destroy(tmqmessage);
 
       if ((++msg_count % MIN_COMMIT_COUNT) == 0) tmq_commit(tmq, NULL, 0);
@@ -226,10 +226,10 @@ void perf_loop(tmq_t* tmq, tmq_list_t* topics) {
   int32_t skipLogNum = 0;
   clock_t startTime = clock();
   while (running) {
-    tmq_message_t* tmqmessage = tmq_consumer_poll(tmq, 500);
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 500);
     if (tmqmessage) {
       batchCnt++;
-      skipLogNum += tmqGetSkipLogNum(tmqmessage);
+      /*skipLogNum += tmqGetSkipLogNum(tmqmessage);*/
       /*msg_process(tmqmessage);*/
       tmq_message_destroy(tmqmessage);
     } else {
diff --git a/include/client/taos.h b/include/client/taos.h
index d3856d432e..87948e7824 100644
--- a/include/client/taos.h
+++ b/include/client/taos.h
@@ -30,7 +30,7 @@ typedef void **TAOS_ROW;
 #if 0
 typedef void   TAOS_STREAM;
 #endif
-typedef void   TAOS_SUB;
+typedef void TAOS_SUB;
 
 // Data type definition
 #define TSDB_DATA_TYPE_NULL       0   // 1 bytes
@@ -138,13 +138,13 @@ typedef enum {
 #define RET_MSG_LENGTH 1024
 typedef struct setConfRet {
   SET_CONF_RET_CODE retCode;
-  char   retMsg[RET_MSG_LENGTH];
+  char              retMsg[RET_MSG_LENGTH];
 } setConfRet;
 
-DLL_EXPORT void  taos_cleanup(void);
-DLL_EXPORT int   taos_options(TSDB_OPTION option, const void *arg, ...);
-DLL_EXPORT setConfRet   taos_set_config(const char *config);
-DLL_EXPORT TAOS *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port);
+DLL_EXPORT void       taos_cleanup(void);
+DLL_EXPORT int        taos_options(TSDB_OPTION option, const void *arg, ...);
+DLL_EXPORT setConfRet taos_set_config(const char *config);
+DLL_EXPORT TAOS      *taos_connect(const char *ip, const char *user, const char *pass, const char *db, uint16_t port);
 DLL_EXPORT TAOS *taos_connect_l(const char *ip, int ipLen, const char *user, int userLen, const char *pass, int passLen,
                                 const char *db, int dbLen, uint16_t port);
 DLL_EXPORT TAOS *taos_connect_auth(const char *ip, const char *user, const char *auth, const char *db, uint16_t port);
@@ -152,34 +152,34 @@ DLL_EXPORT void  taos_close(TAOS *taos);
 
 const char *taos_data_type(int type);
 
-DLL_EXPORT TAOS_STMT  *taos_stmt_init(TAOS *taos);
-DLL_EXPORT int         taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length);
-DLL_EXPORT int         taos_stmt_set_tbname_tags(TAOS_STMT *stmt, const char *name, TAOS_BIND *tags);
-DLL_EXPORT int         taos_stmt_set_tbname(TAOS_STMT *stmt, const char *name);
-DLL_EXPORT int         taos_stmt_set_sub_tbname(TAOS_STMT *stmt, const char *name);
+DLL_EXPORT TAOS_STMT *taos_stmt_init(TAOS *taos);
+DLL_EXPORT int        taos_stmt_prepare(TAOS_STMT *stmt, const char *sql, unsigned long length);
+DLL_EXPORT int        taos_stmt_set_tbname_tags(TAOS_STMT *stmt, const char *name, TAOS_BIND *tags);
+DLL_EXPORT int        taos_stmt_set_tbname(TAOS_STMT *stmt, const char *name);
+DLL_EXPORT int        taos_stmt_set_sub_tbname(TAOS_STMT *stmt, const char *name);
 
-DLL_EXPORT int         taos_stmt_is_insert(TAOS_STMT *stmt, int *insert);
-DLL_EXPORT int         taos_stmt_num_params(TAOS_STMT *stmt, int *nums);
-DLL_EXPORT int         taos_stmt_get_param(TAOS_STMT *stmt, int idx, int *type, int *bytes);
-DLL_EXPORT int         taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_BIND *bind);
-DLL_EXPORT int         taos_stmt_bind_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind);
-DLL_EXPORT int         taos_stmt_bind_single_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind, int colIdx);
-DLL_EXPORT int         taos_stmt_add_batch(TAOS_STMT *stmt);
-DLL_EXPORT int         taos_stmt_execute(TAOS_STMT *stmt);
-DLL_EXPORT TAOS_RES   *taos_stmt_use_result(TAOS_STMT *stmt);
-DLL_EXPORT int         taos_stmt_close(TAOS_STMT *stmt);
-DLL_EXPORT char       *taos_stmt_errstr(TAOS_STMT *stmt);
-DLL_EXPORT int         taos_stmt_affected_rows(TAOS_STMT *stmt);
+DLL_EXPORT int       taos_stmt_is_insert(TAOS_STMT *stmt, int *insert);
+DLL_EXPORT int       taos_stmt_num_params(TAOS_STMT *stmt, int *nums);
+DLL_EXPORT int       taos_stmt_get_param(TAOS_STMT *stmt, int idx, int *type, int *bytes);
+DLL_EXPORT int       taos_stmt_bind_param(TAOS_STMT *stmt, TAOS_BIND *bind);
+DLL_EXPORT int       taos_stmt_bind_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind);
+DLL_EXPORT int       taos_stmt_bind_single_param_batch(TAOS_STMT *stmt, TAOS_MULTI_BIND *bind, int colIdx);
+DLL_EXPORT int       taos_stmt_add_batch(TAOS_STMT *stmt);
+DLL_EXPORT int       taos_stmt_execute(TAOS_STMT *stmt);
+DLL_EXPORT TAOS_RES *taos_stmt_use_result(TAOS_STMT *stmt);
+DLL_EXPORT int       taos_stmt_close(TAOS_STMT *stmt);
+DLL_EXPORT char     *taos_stmt_errstr(TAOS_STMT *stmt);
+DLL_EXPORT int       taos_stmt_affected_rows(TAOS_STMT *stmt);
 
-DLL_EXPORT TAOS_RES   *taos_query(TAOS *taos, const char *sql);
-DLL_EXPORT TAOS_RES   *taos_query_l(TAOS *taos, const char *sql, int sqlLen);
+DLL_EXPORT TAOS_RES *taos_query(TAOS *taos, const char *sql);
+DLL_EXPORT TAOS_RES *taos_query_l(TAOS *taos, const char *sql, int sqlLen);
 
-DLL_EXPORT TAOS_ROW    taos_fetch_row(TAOS_RES *res);
-DLL_EXPORT int         taos_result_precision(TAOS_RES *res);  // get the time precision of result
-DLL_EXPORT void        taos_free_result(TAOS_RES *res);
-DLL_EXPORT int         taos_field_count(TAOS_RES *res);
-DLL_EXPORT int         taos_num_fields(TAOS_RES *res);
-DLL_EXPORT int         taos_affected_rows(TAOS_RES *res);
+DLL_EXPORT TAOS_ROW taos_fetch_row(TAOS_RES *res);
+DLL_EXPORT int      taos_result_precision(TAOS_RES *res);  // get the time precision of result
+DLL_EXPORT void     taos_free_result(TAOS_RES *res);
+DLL_EXPORT int      taos_field_count(TAOS_RES *res);
+DLL_EXPORT int      taos_num_fields(TAOS_RES *res);
+DLL_EXPORT int      taos_affected_rows(TAOS_RES *res);
 
 DLL_EXPORT TAOS_FIELD *taos_fetch_fields(TAOS_RES *res);
 DLL_EXPORT int         taos_select_db(TAOS *taos, const char *db);
@@ -188,14 +188,14 @@ DLL_EXPORT void        taos_stop_query(TAOS_RES *res);
 DLL_EXPORT bool        taos_is_null(TAOS_RES *res, int32_t row, int32_t col);
 DLL_EXPORT bool        taos_is_update_query(TAOS_RES *res);
 DLL_EXPORT int         taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows);
-DLL_EXPORT int         taos_fetch_block_s(TAOS_RES *res, int* numOfRows, TAOS_ROW *rows);
-DLL_EXPORT int         taos_fetch_raw_block(TAOS_RES *res, int* numOfRows, void** pData);
+DLL_EXPORT int         taos_fetch_block_s(TAOS_RES *res, int *numOfRows, TAOS_ROW *rows);
+DLL_EXPORT int         taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData);
 DLL_EXPORT int        *taos_get_column_data_offset(TAOS_RES *res, int columnIndex);
 DLL_EXPORT int         taos_validate_sql(TAOS *taos, const char *sql);
 DLL_EXPORT void        taos_reset_current_db(TAOS *taos);
 
-DLL_EXPORT int        *taos_fetch_lengths(TAOS_RES *res);
-DLL_EXPORT TAOS_ROW   *taos_result_block(TAOS_RES *res);
+DLL_EXPORT int      *taos_fetch_lengths(TAOS_RES *res);
+DLL_EXPORT TAOS_ROW *taos_result_block(TAOS_RES *res);
 
 DLL_EXPORT const char *taos_get_server_info(TAOS *taos);
 DLL_EXPORT const char *taos_get_client_info();
@@ -237,9 +237,9 @@ typedef struct tmq_t                   tmq_t;
 typedef struct tmq_topic_vgroup_t      tmq_topic_vgroup_t;
 typedef struct tmq_topic_vgroup_list_t tmq_topic_vgroup_list_t;
 
-typedef struct tmq_conf_t    tmq_conf_t;
-typedef struct tmq_list_t    tmq_list_t;
-typedef struct tmq_message_t tmq_message_t;
+typedef struct tmq_conf_t tmq_conf_t;
+typedef struct tmq_list_t tmq_list_t;
+// typedef struct tmq_message_t tmq_message_t;
 
 typedef void(tmq_commit_cb(tmq_t *, tmq_resp_err_t, tmq_topic_vgroup_list_t *, void *param));
 
@@ -259,7 +259,7 @@ DLL_EXPORT const char *tmq_err2str(tmq_resp_err_t);
 DLL_EXPORT tmq_resp_err_t tmq_subscribe(tmq_t *tmq, tmq_list_t *topic_list);
 DLL_EXPORT tmq_resp_err_t tmq_unsubscribe(tmq_t *tmq);
 DLL_EXPORT tmq_resp_err_t tmq_subscription(tmq_t *tmq, tmq_list_t **topics);
-DLL_EXPORT tmq_message_t *tmq_consumer_poll(tmq_t *tmq, int64_t blocking_time);
+DLL_EXPORT TAOS_RES      *tmq_consumer_poll(tmq_t *tmq, int64_t blocking_time);
 DLL_EXPORT tmq_resp_err_t tmq_consumer_close(tmq_t *tmq);
 #if 0
 DLL_EXPORT tmq_resp_err_t tmq_assign(tmq_t* tmq, const tmq_topic_vgroup_list_t* vgroups);
@@ -268,8 +268,8 @@ DLL_EXPORT tmq_resp_err_t tmq_assignment(tmq_t* tmq, tmq_topic_vgroup_list_t** v
 DLL_EXPORT tmq_resp_err_t tmq_commit(tmq_t *tmq, const tmq_topic_vgroup_list_t *offsets, int32_t async);
 #if 0
 DLL_EXPORT tmq_resp_err_t tmq_commit_message(tmq_t* tmq, const tmq_message_t* tmqmessage, int32_t async);
-#endif
 DLL_EXPORT tmq_resp_err_t tmq_seek(tmq_t *tmq, const tmq_topic_vgroup_t *offset);
+#endif
 /* ----------------------TMQ CONFIGURATION INTERFACE---------------------- */
 
 enum tmq_conf_res_t {
@@ -285,21 +285,24 @@ DLL_EXPORT tmq_conf_res_t tmq_conf_set(tmq_conf_t *conf, const char *key, const
 DLL_EXPORT void           tmq_conf_destroy(tmq_conf_t *conf);
 DLL_EXPORT void           tmq_conf_set_offset_commit_cb(tmq_conf_t *conf, tmq_commit_cb *cb);
 
+#if 0
 // temporary used function for demo only
 void    tmqShowMsg(tmq_message_t *tmq_message);
 int32_t tmqGetSkipLogNum(tmq_message_t *tmq_message);
+#endif
 
 /* -------------------------TMQ MSG HANDLE INTERFACE---------------------- */
 
+DLL_EXPORT char   *tmq_get_topic_name(TAOS_RES *res);
+DLL_EXPORT int32_t tmq_get_vgroup_id(TAOS_RES *res);
+#if 0
 DLL_EXPORT TAOS_ROW    tmq_get_row(tmq_message_t *message);
-DLL_EXPORT char       *tmq_get_topic_name(tmq_message_t *message);
-DLL_EXPORT int32_t     tmq_get_vgroup_id(tmq_message_t *message);
 DLL_EXPORT int64_t     tmq_get_request_offset(tmq_message_t *message);
 DLL_EXPORT int64_t     tmq_get_response_offset(tmq_message_t *message);
 DLL_EXPORT TAOS_FIELD *tmq_get_fields(tmq_t *tmq, const char *topic);
 DLL_EXPORT int32_t     tmq_field_count(tmq_t *tmq, const char *topic);
-DLL_EXPORT void        tmq_message_destroy(tmq_message_t *tmq_message);
-
+#endif
+DLL_EXPORT void tmq_message_destroy(TAOS_RES *res);
 /* --------------------TMPORARY INTERFACE FOR TESTING--------------------- */
 #if 0
 DLL_EXPORT TAOS_RES *tmq_create_topic(TAOS *taos, const char *name, const char *sql, int sqlLen);
@@ -308,7 +311,7 @@ DLL_EXPORT TAOS_RES *tmq_create_topic(TAOS *taos, const char *name, const char *
 DLL_EXPORT TAOS_RES *tmq_create_stream(TAOS *taos, const char *streamName, const char *tbName, const char *sql);
 
 /* ------------------------------ TMQ END -------------------------------- */
-#if 1 // Shuduo: temporary enable for app build
+#if 1  // Shuduo: temporary enable for app build
 typedef void (*TAOS_SUBSCRIBE_CALLBACK)(TAOS_SUB *tsub, TAOS_RES *res, void *param, int code);
 #endif
 
diff --git a/include/common/tdatablock.h b/include/common/tdatablock.h
index 5e5a8826e5..6f933c663e 100644
--- a/include/common/tdatablock.h
+++ b/include/common/tdatablock.h
@@ -199,11 +199,11 @@ int32_t blockDataSort_rv(SSDataBlock* pDataBlock, SArray* pOrderInfo, bool nullF
 int32_t colInfoDataEnsureCapacity(SColumnInfoData* pColumn, uint32_t numOfRows);
 int32_t blockDataEnsureCapacity(SSDataBlock* pDataBlock, uint32_t numOfRows);
 
-void    colInfoDataCleanup(SColumnInfoData* pColumn, uint32_t numOfRows);
-void    blockDataCleanup(SSDataBlock* pDataBlock);
+void colInfoDataCleanup(SColumnInfoData* pColumn, uint32_t numOfRows);
+void blockDataCleanup(SSDataBlock* pDataBlock);
 
-size_t  blockDataGetCapacityInRow(const SSDataBlock* pBlock, size_t pageSize);
-void*   blockDataDestroy(SSDataBlock* pBlock);
+size_t blockDataGetCapacityInRow(const SSDataBlock* pBlock, size_t pageSize);
+void*  blockDataDestroy(SSDataBlock* pBlock);
 
 int32_t blockDataTrimFirstNRows(SSDataBlock* pBlock, size_t n);
 
@@ -211,8 +211,8 @@ SSDataBlock* createOneDataBlock(const SSDataBlock* pDataBlock);
 
 void blockDebugShowData(const SArray* dataBlocks);
 
-static FORCE_INLINE int32_t blockEstimateEncodeSize(const SSDataBlock* pBlock) {
-  return blockDataGetSerialMetaSize(pBlock) + (int32_t)ceil(blockDataGetSerialRowSize(pBlock) * pBlock->info.rows);
+static FORCE_INLINE int32_t blockGetEncodeSize(const SSDataBlock* pBlock) {
+  return blockDataGetSerialMetaSize(pBlock) + blockDataGetSize(pBlock);
 }
 
 static FORCE_INLINE int32_t blockCompressColData(SColumnInfoData* pColRes, int32_t numOfRows, char* data,
diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index bd4485dc94..5d5889e308 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -485,7 +485,7 @@ typedef struct {
   char    intervalUnit;
   char    slidingUnit;
   char
-          offsetUnit;  // TODO Remove it, the offset is the number of precision tickle, and it must be a immutable duration.
+      offsetUnit;  // TODO Remove it, the offset is the number of precision tickle, and it must be a immutable duration.
   int8_t  precision;
   int64_t interval;
   int64_t sliding;
@@ -2384,6 +2384,53 @@ typedef struct {
   SArray*         pBlockData;  // SArray<SSDataBlock>
 } SMqPollRsp;
 
+typedef struct {
+  SMqRspHead head;
+  int64_t    reqOffset;
+  int64_t    rspOffset;
+  int32_t    skipLogNum;
+  int32_t    dataLen;
+  SArray*    blockPos;   // beginning pos for each SRetrieveTableRsp
+  void*      blockData;  // serialized batched SRetrieveTableRsp
+} SMqPollRspV2;
+
+static FORCE_INLINE int32_t tEncodeSMqPollRspV2(void** buf, const SMqPollRspV2* pRsp) {
+  int32_t tlen = 0;
+  tlen += taosEncodeFixedI64(buf, pRsp->reqOffset);
+  tlen += taosEncodeFixedI64(buf, pRsp->rspOffset);
+  tlen += taosEncodeFixedI32(buf, pRsp->skipLogNum);
+  tlen += taosEncodeFixedI32(buf, pRsp->dataLen);
+  if (pRsp->dataLen != 0) {
+    int32_t sz = taosArrayGetSize(pRsp->blockPos);
+    tlen += taosEncodeFixedI32(buf, sz);
+    for (int32_t i = 0; i < sz; i++) {
+      int32_t blockPos = *(int32_t*)taosArrayGet(pRsp->blockPos, i);
+      tlen += taosEncodeFixedI32(buf, blockPos);
+    }
+    tlen += taosEncodeBinary(buf, pRsp->blockData, pRsp->dataLen);
+  }
+  return tlen;
+}
+
+static FORCE_INLINE void* tDecodeSMqPollRspV2(const void* buf, SMqPollRspV2* pRsp) {
+  buf = taosDecodeFixedI64(buf, &pRsp->reqOffset);
+  buf = taosDecodeFixedI64(buf, &pRsp->rspOffset);
+  buf = taosDecodeFixedI32(buf, &pRsp->skipLogNum);
+  buf = taosDecodeFixedI32(buf, &pRsp->dataLen);
+  if (pRsp->dataLen != 0) {
+    int32_t sz;
+    buf = taosDecodeFixedI32(buf, &sz);
+    pRsp->blockPos = taosArrayInit(sz, sizeof(int32_t));
+    for (int32_t i = 0; i < sz; i++) {
+      int32_t blockPos;
+      buf = taosDecodeFixedI32(buf, &blockPos);
+      taosArrayPush(pRsp->blockPos, &blockPos);
+    }
+    buf = taosDecodeBinary(buf, &pRsp->blockData, pRsp->dataLen);
+  }
+  return (void*)buf;
+}
+
 typedef struct {
   SMqRspHead head;
   char       cgroup[TSDB_CGROUP_LEN];
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index 185b5824d9..b7d88c277b 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -194,12 +194,12 @@ enum {
 #define TD_RES_QUERY(res) (*(int8_t*)res == RES_TYPE__QUERY)
 #define TD_RES_TMQ(res)   (*(int8_t*)res == RES_TYPE__TMQ)
 
-typedef struct SMqRspObj {
+typedef struct {
   int8_t  resType;
   char*   topic;
-  void*   vg;
   SArray* res;  // SArray<SReqResultInfo>
   int32_t resIter;
+  int32_t vgId;
 } SMqRspObj;
 
 typedef struct SRequestObj {
diff --git a/source/client/src/clientMain.c b/source/client/src/clientMain.c
index 040ddde630..c93260be37 100644
--- a/source/client/src/clientMain.c
+++ b/source/client/src/clientMain.c
@@ -465,7 +465,7 @@ int taos_fetch_raw_block(TAOS_RES *res, int *numOfRows, void **pData) {
       return 0;
     }
 
-    doFetchRow(pRequest, false, false);
+    doFetchRow(pRequest, false, true);
 
     SReqResultInfo *pResultInfo = &pRequest->body.resInfo;
 
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index dbe78782f5..ea31170b1f 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -27,11 +27,22 @@
 struct tmq_message_t {
   SMqPollRsp msg;
   char*      topic;
-  void*      vg;
   SArray*    res;  // SArray<SReqResultInfo>
+  int32_t    vgId;
   int32_t    resIter;
 };
 
+typedef struct {
+  int8_t  tmqRspType;
+  int32_t epoch;
+} SMqRspWrapper;
+
+typedef struct {
+  int8_t           tmqRspType;
+  int32_t          epoch;
+  SMqCMGetSubEpRsp msg;
+} SMqAskEpRspWrapper;
+
 struct tmq_list_t {
   SArray container;
 };
@@ -118,6 +129,14 @@ typedef struct {
   TAOS_FIELD* fields;
 } SMqClientTopic;
 
+typedef struct {
+  int8_t          tmqRspType;
+  int32_t         epoch;
+  SMqClientVg*    vgHandle;
+  SMqClientTopic* topicHandle;
+  SMqPollRspV2    msg;
+} SMqPollRspWrapper;
+
 typedef struct {
   tmq_t*         tmq;
   tsem_t         rspSem;
@@ -133,10 +152,10 @@ typedef struct {
 typedef struct {
   tmq_t*          tmq;
   SMqClientVg*    pVg;
+  SMqClientTopic* pTopic;
   int32_t         epoch;
   int32_t         vgId;
   tsem_t          rspSem;
-  tmq_message_t** msg;
   int32_t         sync;
 } SMqPollCbParam;
 
@@ -244,7 +263,7 @@ static int32_t tmqMakeTopicVgKey(char* dst, const char* topicName, int32_t vg) {
 }
 
 void tmqClearUnhandleMsg(tmq_t* tmq) {
-  tmq_message_t* msg = NULL;
+  SMqRspWrapper* msg = NULL;
   while (1) {
     taosGetQitem(tmq->qall, (void**)&msg);
     if (msg)
@@ -777,7 +796,7 @@ static char* formatTimestamp(char* buf, int64_t val, int precision) {
 
   return buf;
 }
-
+#if 0
 int32_t tmqGetSkipLogNum(tmq_message_t* tmq_message) {
   if (tmq_message == NULL) return 0;
   SMqPollRsp* pRsp = &tmq_message->msg;
@@ -827,11 +846,13 @@ void tmqShowMsg(tmq_message_t* tmq_message) {
     }
   }
 }
+#endif
 
 int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
   /*printf("recv poll\n");*/
   SMqPollCbParam* pParam = (SMqPollCbParam*)param;
   SMqClientVg*    pVg = pParam->pVg;
+  SMqClientTopic* pTopic = pParam->pTopic;
   tmq_t*          tmq = pParam->tmq;
   if (code != 0) {
     tscWarn("msg discard from vg %d, epoch %d, code:%x", pParam->vgId, pParam->epoch, code);
@@ -874,18 +895,22 @@ int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
 #endif
 
   /*SMqConsumeRsp* pRsp = taosMemoryCalloc(1, sizeof(SMqConsumeRsp));*/
-  tmq_message_t* pRsp = taosAllocateQitem(sizeof(tmq_message_t));
-  if (pRsp == NULL) {
+  /*tmq_message_t* pRsp = taosAllocateQitem(sizeof(tmq_message_t));*/
+  SMqPollRspWrapper* pRspWrapper = taosAllocateQitem(sizeof(SMqPollRspWrapper));
+  if (pRspWrapper == NULL) {
     tscWarn("msg discard from vg %d, epoch %d since out of memory", pParam->vgId, pParam->epoch);
     goto CREATE_MSG_FAIL;
   }
-  memcpy(pRsp, pMsg->pData, sizeof(SMqRspHead));
-  tDecodeSMqPollRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pRsp->msg);
-  /*pRsp->iter.curBlock = 0;*/
-  /*pRsp->iter.curRow = 0;*/
+  pRspWrapper->tmqRspType = TMQ_MSG_TYPE__POLL_RSP;
+  pRspWrapper->vgHandle = pVg;
+  pRspWrapper->topicHandle = pTopic;
+  /*memcpy(pRsp, pMsg->pData, sizeof(SMqRspHead));*/
+  memcpy(&pRspWrapper->msg, pMsg->pData, sizeof(SMqRspHead));
+  tDecodeSMqPollRspV2(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pRspWrapper->msg);
   // TODO: alloc mem
   /*pRsp->*/
   /*printf("rsp commit off:%ld rsp off:%ld has data:%d\n", pRsp->committedOffset, pRsp->rspOffset, pRsp->numOfTopics);*/
+
 #if 0
   if (pRsp->msg.numOfTopics == 0) {
     /*printf("no data\n");*/
@@ -894,11 +919,10 @@ int32_t tmqPollCb(void* param, const SDataBuf* pMsg, int32_t code) {
   }
 #endif
 
-  tscDebug("consumer %ld recv poll: vg %d, req offset %ld, rsp offset %ld", tmq->consumerId, pParam->pVg->vgId,
-           pRsp->msg.reqOffset, pRsp->msg.rspOffset);
+  tscDebug("consumer %ld recv poll: vg %d, req offset %ld, rsp offset %ld", tmq->consumerId, pVg->vgId,
+           pRspWrapper->msg.reqOffset, pRspWrapper->msg.rspOffset);
 
-  pRsp->vg = pParam->pVg;
-  taosWriteQitem(tmq->mqueue, pRsp);
+  taosWriteQitem(tmq->mqueue, pRspWrapper);
   atomic_add_fetch_32(&tmq->readyRequest, 1);
   /*tsem_post(&tmq->rspSem);*/
   return 0;
@@ -1015,16 +1039,19 @@ int32_t tmqAskEpCb(void* param, const SDataBuf* pMsg, int32_t code) {
     }
     tDeleteSMqCMGetSubEpRsp(&rsp);
   } else {
-    SMqCMGetSubEpRsp* pRsp = taosAllocateQitem(sizeof(SMqCMGetSubEpRsp));
-    if (pRsp == NULL) {
+    /*SMqCMGetSubEpRsp* pRsp = taosAllocateQitem(sizeof(SMqCMGetSubEpRsp));*/
+    SMqAskEpRspWrapper* pWrapper = taosAllocateQitem(sizeof(SMqAskEpRspWrapper));
+    if (pWrapper == NULL) {
       terrno = TSDB_CODE_OUT_OF_MEMORY;
       code = -1;
       goto END;
     }
-    memcpy(pRsp, pMsg->pData, sizeof(SMqRspHead));
-    tDecodeSMqCMGetSubEpRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), pRsp);
+    pWrapper->tmqRspType = TMQ_MSG_TYPE__EP_RSP;
+    pWrapper->epoch = head->epoch;
+    memcpy(&pWrapper->msg, pMsg->pData, sizeof(SMqRspHead));
+    tDecodeSMqCMGetSubEpRsp(POINTER_SHIFT(pMsg->pData, sizeof(SMqRspHead)), &pWrapper->msg);
 
-    taosWriteQitem(tmq->mqueue, pRsp);
+    taosWriteQitem(tmq->mqueue, pWrapper);
     /*tsem_post(&tmq->rspSem);*/
   }
 
@@ -1152,6 +1179,25 @@ SMqPollReq* tmqBuildConsumeReqImpl(tmq_t* tmq, int64_t blockingTime, SMqClientTo
   return pReq;
 }
 
+SMqRspObj* tmqBuildRspFromWrapper(SMqPollRspWrapper* pWrapper) {
+  SMqRspObj* pRspObj = taosMemoryCalloc(1, sizeof(SMqRspObj));
+  pRspObj->resType = RES_TYPE__TMQ;
+  pRspObj->topic = strdup(pWrapper->topicHandle->topicName);
+  pRspObj->resIter = -1;
+  pRspObj->vgId = pWrapper->vgHandle->vgId;
+  SMqPollRspV2* pRsp = &pWrapper->msg;
+  int32_t       blockNum = taosArrayGetSize(pRsp->blockPos);
+  pRspObj->res = taosArrayInit(blockNum, sizeof(SReqResultInfo));
+  for (int32_t i = 0; i < blockNum; i++) {
+    int32_t            pos = *(int32_t*)taosArrayGet(pRsp->blockPos, i);
+    SRetrieveTableRsp* pRetrieve = POINTER_SHIFT(pRsp->blockData, pos);
+    SReqResultInfo     resInfo;
+    setQueryResultFromRsp(&resInfo, pRetrieve, true);
+    taosArrayPush(pRspObj->res, &resInfo);
+  }
+  return pRspObj;
+}
+
 #if 0
 tmq_message_t* tmqSyncPollImpl(tmq_t* tmq, int64_t blockingTime) {
   tmq_message_t* msg = NULL;
@@ -1258,6 +1304,7 @@ int32_t tmqPollImpl(tmq_t* tmq, int64_t blockingTime) {
       }
       pParam->tmq = tmq;
       pParam->pVg = pVg;
+      pParam->pTopic = pTopic;
       pParam->vgId = pVg->vgId;
       pParam->epoch = tmq->epoch;
       pParam->sync = 0;
@@ -1296,13 +1343,13 @@ int32_t tmqPollImpl(tmq_t* tmq, int64_t blockingTime) {
   return 0;
 }
 
-// return
-int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspHead* rspHead, bool* pReset) {
-  if (rspHead->mqMsgType == TMQ_MSG_TYPE__EP_RSP) {
+int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspWrapper* rspWrapper, bool* pReset) {
+  if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__EP_RSP) {
     /*printf("ep %d %d\n", rspMsg->head.epoch, tmq->epoch);*/
-    if (rspHead->epoch > atomic_load_32(&tmq->epoch)) {
-      SMqCMGetSubEpRsp* rspMsg = (SMqCMGetSubEpRsp*)rspHead;
-      tmqUpdateEp(tmq, rspHead->epoch, rspMsg);
+    if (rspWrapper->epoch > atomic_load_32(&tmq->epoch)) {
+      SMqAskEpRspWrapper* pEpRspWrapper = (SMqAskEpRspWrapper*)rspWrapper;
+      SMqCMGetSubEpRsp*   rspMsg = &pEpRspWrapper->msg;
+      tmqUpdateEp(tmq, rspWrapper->epoch, rspMsg);
       /*tmqClearUnhandleMsg(tmq);*/
       *pReset = true;
     } else {
@@ -1314,41 +1361,43 @@ int32_t tmqHandleNoPollRsp(tmq_t* tmq, SMqRspHead* rspHead, bool* pReset) {
   return 0;
 }
 
-tmq_message_t* tmqHandleAllRsp(tmq_t* tmq, int64_t blockingTime, bool pollIfReset) {
+SMqRspObj* tmqHandleAllRsp(tmq_t* tmq, int64_t blockingTime, bool pollIfReset) {
   while (1) {
-    SMqRspHead* rspHead = NULL;
-    taosGetQitem(tmq->qall, (void**)&rspHead);
-    if (rspHead == NULL) {
+    SMqRspWrapper* rspWrapper = NULL;
+    taosGetQitem(tmq->qall, (void**)&rspWrapper);
+    if (rspWrapper == NULL) {
       taosReadAllQitems(tmq->mqueue, tmq->qall);
-      taosGetQitem(tmq->qall, (void**)&rspHead);
-      if (rspHead == NULL) return NULL;
+      taosGetQitem(tmq->qall, (void**)&rspWrapper);
+      if (rspWrapper == NULL) return NULL;
     }
 
-    if (rspHead->mqMsgType == TMQ_MSG_TYPE__POLL_RSP) {
-      tmq_message_t* rspMsg = (tmq_message_t*)rspHead;
+    if (rspWrapper->tmqRspType == TMQ_MSG_TYPE__POLL_RSP) {
+      SMqPollRspWrapper* pollRspWrapper = (SMqPollRspWrapper*)rspWrapper;
       atomic_sub_fetch_32(&tmq->readyRequest, 1);
       /*printf("handle poll rsp %d\n", rspMsg->head.mqMsgType);*/
-      if (rspMsg->msg.head.epoch == atomic_load_32(&tmq->epoch)) {
+      if (pollRspWrapper->msg.head.epoch == atomic_load_32(&tmq->epoch)) {
         /*printf("epoch match\n");*/
-        SMqClientVg* pVg = rspMsg->vg;
+        SMqClientVg* pVg = pollRspWrapper->vgHandle;
         /*printf("vg %d offset %ld up to %ld\n", pVg->vgId, pVg->currentOffset, rspMsg->msg.rspOffset);*/
-        pVg->currentOffset = rspMsg->msg.rspOffset;
+        pVg->currentOffset = pollRspWrapper->msg.rspOffset;
         atomic_store_32(&pVg->vgStatus, TMQ_VG_STATUS__IDLE);
-        if (rspMsg->msg.numOfTopics == 0) {
-          taosFreeQitem(rspMsg);
-          rspHead = NULL;
+        if (pollRspWrapper->msg.dataLen == 0) {
+          taosFreeQitem(pollRspWrapper);
+          rspWrapper = NULL;
           continue;
         }
-        return rspMsg;
+        // build msg
+        SMqRspObj* pRsp = tmqBuildRspFromWrapper(pollRspWrapper);
+        return pRsp;
       } else {
         /*printf("epoch mismatch\n");*/
-        taosFreeQitem(rspMsg);
+        taosFreeQitem(pollRspWrapper);
       }
     } else {
       /*printf("handle ep rsp %d\n", rspMsg->head.mqMsgType);*/
       bool reset = false;
-      tmqHandleNoPollRsp(tmq, rspHead, &reset);
-      taosFreeQitem(rspHead);
+      tmqHandleNoPollRsp(tmq, rspWrapper, &reset);
+      taosFreeQitem(rspWrapper);
       if (pollIfReset && reset) {
         tscDebug("consumer %ld reset and repoll", tmq->consumerId);
         tmqPollImpl(tmq, blockingTime);
@@ -1382,17 +1431,17 @@ tmq_message_t* tmq_consumer_poll_v1(tmq_t* tmq, int64_t blocking_time) {
 }
 #endif
 
-tmq_message_t* tmq_consumer_poll(tmq_t* tmq, int64_t blocking_time) {
-  tmq_message_t* rspMsg;
-  int64_t        startTime = taosGetTimestampMs();
+TAOS_RES* tmq_consumer_poll(tmq_t* tmq, int64_t blocking_time) {
+  SMqRspObj* rspObj;
+  int64_t    startTime = taosGetTimestampMs();
 
   // TODO: put into another thread or delayed queue
   int64_t status = atomic_load_64(&tmq->status);
   tmqAskEp(tmq, status == TMQ_CONSUMER_STATUS__INIT);
 
-  rspMsg = tmqHandleAllRsp(tmq, blocking_time, false);
-  if (rspMsg) {
-    return rspMsg;
+  rspObj = tmqHandleAllRsp(tmq, blocking_time, false);
+  if (rspObj) {
+    return (TAOS_RES*)rspObj;
   }
 
   while (1) {
@@ -1402,9 +1451,9 @@ tmq_message_t* tmq_consumer_poll(tmq_t* tmq, int64_t blocking_time) {
 
     /*tsem_wait(&tmq->rspSem);*/
 
-    rspMsg = tmqHandleAllRsp(tmq, blocking_time, false);
-    if (rspMsg) {
-      return rspMsg;
+    rspObj = tmqHandleAllRsp(tmq, blocking_time, false);
+    if (rspObj) {
+      return (TAOS_RES*)rspObj;
     }
     if (blocking_time != 0) {
       int64_t endTime = taosGetTimestampMs();
@@ -1546,6 +1595,7 @@ tmq_resp_err_t tmq_commit(tmq_t* tmq, const tmq_topic_vgroup_list_t* tmq_topic_v
 }
 #endif
 
+#if 0
 void tmq_message_destroy(tmq_message_t* tmq_message) {
   if (tmq_message == NULL) return;
   SMqPollRsp* pRsp = &tmq_message->msg;
@@ -1553,6 +1603,7 @@ void tmq_message_destroy(tmq_message_t* tmq_message) {
   /*taosMemoryFree(tmq_message);*/
   taosFreeQitem(tmq_message);
 }
+#endif
 
 tmq_resp_err_t tmq_consumer_close(tmq_t* tmq) { return TMQ_RESP_ERR__SUCCESS; }
 
@@ -1563,4 +1614,27 @@ const char* tmq_err2str(tmq_resp_err_t err) {
   return "fail";
 }
 
-char* tmq_get_topic_name(tmq_message_t* message) { return "not implemented yet"; }
+char* tmq_get_topic_name(TAOS_RES* res) {
+  if (TD_RES_TMQ(res)) {
+    SMqRspObj* pRspObj = (SMqRspObj*)res;
+    return pRspObj->topic;
+  } else {
+    return NULL;
+  }
+}
+
+int32_t tmq_get_vgroup_id(TAOS_RES* res) {
+  if (TD_RES_TMQ(res)) {
+    SMqRspObj* pRspObj = (SMqRspObj*)res;
+    return pRspObj->vgId;
+  } else {
+    return -1;
+  }
+}
+
+void tmq_message_destroy(TAOS_RES* res) {
+  if (res == NULL) return;
+  if (TD_RES_TMQ(res)) {
+    SMqRspObj* pRspObj = (SMqRspObj*)res;
+  }
+}
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 794427475e..bee61f4d40 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -255,7 +255,7 @@ int32_t tqDeserializeConsumer(STQ* pTq, const STqSerializedHead* pHead, STqConsu
 
   return 0;
 }
-
+#if 0
 int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
   SMqPollReq* pReq = pMsg->pCont;
   int64_t     consumerId = pReq->consumerId;
@@ -433,6 +433,205 @@ int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
 
   return 0;
 }
+#endif
+
+int32_t tqProcessPollReq(STQ* pTq, SRpcMsg* pMsg, int32_t workerId) {
+  SMqPollReq* pReq = pMsg->pCont;
+  int64_t     consumerId = pReq->consumerId;
+  int64_t     fetchOffset;
+  int64_t     blockingTime = pReq->blockingTime;
+  int32_t     reqEpoch = pReq->epoch;
+
+  if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__EARLIEAST) {
+    fetchOffset = 0;
+  } else if (pReq->currentOffset == TMQ_CONF__RESET_OFFSET__LATEST) {
+    fetchOffset = walGetLastVer(pTq->pWal);
+  } else {
+    fetchOffset = pReq->currentOffset + 1;
+  }
+
+  vDebug("tmq poll: consumer %ld (epoch %d) recv poll req in vg %d, req %ld %ld", consumerId, pReq->epoch,
+         pTq->pVnode->vgId, pReq->currentOffset, fetchOffset);
+
+  SMqPollRspV2 rspV2 = {0};
+  rspV2.dataLen = 0;
+
+  STqConsumer* pConsumer = tqHandleGet(pTq->tqMeta, consumerId);
+  if (pConsumer == NULL) {
+    vWarn("tmq poll: consumer %ld (epoch %d) not found in vg %d", consumerId, pReq->epoch, pTq->pVnode->vgId);
+    pMsg->pCont = NULL;
+    pMsg->contLen = 0;
+    pMsg->code = -1;
+    tmsgSendRsp(pMsg);
+    return 0;
+  }
+
+  int32_t consumerEpoch = atomic_load_32(&pConsumer->epoch);
+  while (consumerEpoch < reqEpoch) {
+    consumerEpoch = atomic_val_compare_exchange_32(&pConsumer->epoch, consumerEpoch, reqEpoch);
+  }
+
+  STqTopic* pTopic = NULL;
+  int32_t   topicSz = taosArrayGetSize(pConsumer->topics);
+  for (int32_t i = 0; i < topicSz; i++) {
+    STqTopic* topic = taosArrayGet(pConsumer->topics, i);
+    // TODO race condition
+    ASSERT(pConsumer->consumerId == consumerId);
+    if (strcmp(topic->topicName, pReq->topic) == 0) {
+      pTopic = topic;
+      break;
+    }
+  }
+  if (pTopic == NULL) {
+    vWarn("tmq poll: consumer %ld (epoch %d) topic %s not found in vg %d", consumerId, pReq->epoch, pReq->topic,
+          pTq->pVnode->vgId);
+    pMsg->pCont = NULL;
+    pMsg->contLen = 0;
+    pMsg->code = -1;
+    tmsgSendRsp(pMsg);
+    return 0;
+  }
+
+  vDebug("poll topic %s from consumer %ld (epoch %d) vg %d", pTopic->topicName, consumerId, pReq->epoch,
+         pTq->pVnode->vgId);
+
+  rspV2.reqOffset = pReq->currentOffset;
+  rspV2.skipLogNum = 0;
+
+  while (1) {
+    /*if (fetchOffset > walGetLastVer(pTq->pWal) || walReadWithHandle(pTopic->pReadhandle, fetchOffset) < 0) {*/
+    // TODO
+    consumerEpoch = atomic_load_32(&pConsumer->epoch);
+    if (consumerEpoch > reqEpoch) {
+      vDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, found new consumer epoch %d discard req epoch %d",
+             consumerId, pReq->epoch, pTq->pVnode->vgId, fetchOffset, consumerEpoch, reqEpoch);
+      break;
+    }
+    SWalReadHead* pHead;
+    if (walReadWithHandle_s(pTopic->pReadhandle, fetchOffset, &pHead) < 0) {
+      // TODO: no more log, set timer to wait blocking time
+      // if data inserted during waiting, launch query and
+      // response to user
+      vDebug("tmq poll: consumer %ld (epoch %d) vg %d offset %ld, no more log to return", consumerId, pReq->epoch,
+             pTq->pVnode->vgId, fetchOffset);
+      break;
+    }
+    vDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d offset %ld msgType %d", consumerId, pReq->epoch,
+           pTq->pVnode->vgId, fetchOffset, pHead->msgType);
+    /*int8_t pos = fetchOffset % TQ_BUFFER_SIZE;*/
+    /*pHead = pTopic->pReadhandle->pHead;*/
+    if (pHead->msgType == TDMT_VND_SUBMIT) {
+      SSubmitReq* pCont = (SSubmitReq*)&pHead->body;
+      qTaskInfo_t task = pTopic->buffer.output[workerId].task;
+      ASSERT(task);
+      qSetStreamInput(task, pCont, STREAM_DATA_TYPE_SUBMIT_BLOCK);
+      SArray* pRes = taosArrayInit(0, sizeof(SSDataBlock));
+      while (1) {
+        SSDataBlock* pDataBlock = NULL;
+        uint64_t     ts;
+        if (qExecTask(task, &pDataBlock, &ts) < 0) {
+          ASSERT(false);
+        }
+        if (pDataBlock == NULL) {
+          /*pos = fetchOffset % TQ_BUFFER_SIZE;*/
+          break;
+        }
+
+        taosArrayPush(pRes, pDataBlock);
+      }
+
+      if (taosArrayGetSize(pRes) == 0) {
+        vDebug("tmq poll: consumer %ld (epoch %d) iter log, vg %d skip log %ld since not wanted", consumerId,
+               pReq->epoch, pTq->pVnode->vgId, fetchOffset);
+        fetchOffset++;
+        rspV2.skipLogNum++;
+        taosArrayDestroy(pRes);
+        continue;
+      }
+      rspV2.rspOffset = fetchOffset;
+
+      int32_t blockSz = taosArrayGetSize(pRes);
+      int32_t tlen = 0;
+      for (int32_t i = 0; i < blockSz; i++) {
+        SSDataBlock* pBlock = taosArrayGet(pRes, i);
+        tlen += sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pBlock);
+      }
+
+      void* data = taosMemoryMalloc(tlen);
+      if (data == NULL) {
+        pMsg->code = -1;
+        taosMemoryFree(pHead);
+      }
+
+      rspV2.blockData = data;
+
+      void*   dataBlockBuf = data;
+      int32_t pos;
+      for (int32_t i = 0; i < blockSz; i++) {
+        pos = 0;
+        SSDataBlock* pBlock = taosArrayGet(pRes, i);
+        blockCompressEncode(pBlock, dataBlockBuf, &pos, pBlock->info.numOfCols, false);
+        taosArrayPush(rspV2.blockPos, &rspV2.dataLen);
+        rspV2.dataLen += pos;
+        dataBlockBuf = POINTER_SHIFT(dataBlockBuf, pos);
+      }
+
+      int32_t msgLen = sizeof(SMqRspHead) + tEncodeSMqPollRspV2(NULL, &rspV2);
+      void*   buf = rpcMallocCont(msgLen);
+
+      ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
+      ((SMqRspHead*)buf)->epoch = pReq->epoch;
+      ((SMqRspHead*)buf)->consumerId = consumerId;
+
+      void* msgBodyBuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
+      tEncodeSMqPollRspV2(&msgBodyBuf, &rspV2);
+
+      /*rsp.pBlockData = pRes;*/
+
+      /*taosArrayDestroyEx(rsp.pBlockData, (void (*)(void*))tDeleteSSDataBlock);*/
+      pMsg->pCont = buf;
+      pMsg->contLen = tlen;
+      pMsg->code = 0;
+      vDebug("vg %d offset %ld msgType %d from consumer %ld (epoch %d) actual rsp", pTq->pVnode->vgId, fetchOffset,
+             pHead->msgType, consumerId, pReq->epoch);
+      tmsgSendRsp(pMsg);
+      taosMemoryFree(pHead);
+      return 0;
+    } else {
+      taosMemoryFree(pHead);
+      fetchOffset++;
+      rspV2.skipLogNum++;
+    }
+  }
+
+  /*if (blockingTime != 0) {*/
+  /*tqAddClientPusher(pTq->tqPushMgr, pMsg, consumerId, blockingTime);*/
+  /*} else {*/
+
+  rspV2.rspOffset = fetchOffset - 1;
+
+  int32_t tlen = sizeof(SMqRspHead) + tEncodeSMqPollRspV2(NULL, &rspV2);
+  void*   buf = rpcMallocCont(tlen);
+  if (buf == NULL) {
+    pMsg->code = -1;
+    return -1;
+  }
+  ((SMqRspHead*)buf)->mqMsgType = TMQ_MSG_TYPE__POLL_RSP;
+  ((SMqRspHead*)buf)->epoch = pReq->epoch;
+  ((SMqRspHead*)buf)->consumerId = consumerId;
+
+  void* abuf = POINTER_SHIFT(buf, sizeof(SMqRspHead));
+  tEncodeSMqPollRspV2(&abuf, &rspV2);
+  pMsg->pCont = buf;
+  pMsg->contLen = tlen;
+  pMsg->code = 0;
+  tmsgSendRsp(pMsg);
+  vDebug("vg %d offset %ld from consumer %ld (epoch %d) not rsp", pTq->pVnode->vgId, fetchOffset, consumerId,
+         pReq->epoch);
+  /*}*/
+
+  return 0;
+}
 
 int32_t tqProcessRebReq(STQ* pTq, char* msg) {
   SMqMVRebReq req = {0};
diff --git a/source/libs/executor/src/dataDispatcher.c b/source/libs/executor/src/dataDispatcher.c
index 626cb1b5f0..e897bc8892 100644
--- a/source/libs/executor/src/dataDispatcher.c
+++ b/source/libs/executor/src/dataDispatcher.c
@@ -92,7 +92,7 @@ static bool allocBuf(SDataDispatchHandle* pDispatcher, const SInputData* pInput,
     return false;
   }
 
-  pBuf->allocSize = sizeof(SRetrieveTableRsp) + blockEstimateEncodeSize(pInput->pData);
+  pBuf->allocSize = sizeof(SRetrieveTableRsp) + blockGetEncodeSize(pInput->pData);
 
   pBuf->pData = taosMemoryMalloc(pBuf->allocSize);
   if (pBuf->pData == NULL) {
diff --git a/tests/test/c/tmqDemo.c b/tests/test/c/tmqDemo.c
index 45a9d31f4c..756893f217 100644
--- a/tests/test/c/tmqDemo.c
+++ b/tests/test/c/tmqDemo.c
@@ -195,7 +195,7 @@ void parseArgument(int32_t argc, char *argv[]) {
 }
 
 static int  running = 1;
-static void msg_process(tmq_message_t* message) { tmqShowMsg(message); }
+/*static void msg_process(tmq_message_t* message) { tmqShowMsg(message); }*/
 
 // calc dir size (not include itself 4096Byte)
 int64_t getDirectorySize(char *dir)
@@ -363,9 +363,9 @@ void sync_consume_loop(tmq_t* tmq, tmq_list_t* topics) {
   }
 
   while (running) {
-    tmq_message_t* tmqmessage = tmq_consumer_poll(tmq, 1);
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 1);
     if (tmqmessage) {
-      msg_process(tmqmessage);
+      /*msg_process(tmqmessage);*/
       tmq_message_destroy(tmqmessage);
 
       if ((++msg_count % MIN_COMMIT_COUNT) == 0) tmq_commit(tmq, NULL, 0);
@@ -392,12 +392,12 @@ void perf_loop(tmq_t* tmq, tmq_list_t* topics, int32_t totalMsgs, int64_t walLog
   int32_t skipLogNum = 0;
   int64_t startTime = taosGetTimestampUs();
   while (running) {
-    tmq_message_t* tmqmessage = tmq_consumer_poll(tmq, 3000);
+    TAOS_RES* tmqmessage = tmq_consumer_poll(tmq, 3000);
     if (tmqmessage) {
       batchCnt++;
-      skipLogNum += tmqGetSkipLogNum(tmqmessage);
+      /*skipLogNum += tmqGetSkipLogNum(tmqmessage);*/
 	  if (0 != g_stConfInfo.showMsgFlag) {
-        msg_process(tmqmessage);
+        /*msg_process(tmqmessage);*/
 	  }
       tmq_message_destroy(tmqmessage);
     } else {
diff --git a/tests/test/c/tmqSim.c b/tests/test/c/tmqSim.c
index dc375dd35a..702d88f258 100644
--- a/tests/test/c/tmqSim.c
+++ b/tests/test/c/tmqSim.c
@@ -13,51 +13,49 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-// clang-format off
-
 #include <assert.h>
+#include <dirent.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
-#include <time.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#include <time.h>
 #include <unistd.h>
-#include <stdlib.h>
-#include <dirent.h>
 
 #include "taos.h"
 #include "taoserror.h"
 #include "tlog.h"
 
-#define GREEN "\033[1;32m"
-#define NC "\033[0m"
+#define GREEN     "\033[1;32m"
+#define NC        "\033[0m"
 #define min(a, b) (((a) < (b)) ? (a) : (b))
 
-#define  MAX_SQL_STR_LEN    (1024 * 1024)
-#define  MAX_ROW_STR_LEN    (16 * 1024)
+#define MAX_SQL_STR_LEN (1024 * 1024)
+#define MAX_ROW_STR_LEN (16 * 1024)
 
 typedef struct {
-    // input from argvs
-	char	dbName[32];
-    char    topicString[256];
-	char    keyString[1024];
-	int32_t showMsgFlag;
-	int32_t consumeDelay;    // unit s
-	int32_t consumeMsgCnt;
+  // input from argvs
+  char    dbName[32];
+  char    topicString[256];
+  char    keyString[1024];
+  int32_t showMsgFlag;
+  int32_t consumeDelay;  // unit s
+  int32_t consumeMsgCnt;
 
-    // save result after parse agrvs	
-	int32_t numOfTopic;
-	char    topics[32][64];
-	
-	int32_t numOfKey;
-	char    key[32][64];
-	char    value[32][64];
+  // save result after parse agrvs
+  int32_t numOfTopic;
+  char    topics[32][64];
+
+  int32_t numOfKey;
+  char    key[32][64];
+  char    value[32][64];
 } SConfInfo;
 
 static SConfInfo g_stConfInfo;
 
-//char* g_pRowValue = NULL;
-//TdFilePtr g_fp = NULL;
+// char* g_pRowValue = NULL;
+// TdFilePtr g_fp = NULL;
 
 static void printHelp() {
   char indent[10] = "        ";
@@ -80,13 +78,12 @@ static void printHelp() {
   exit(EXIT_SUCCESS);
 }
 
-void parseArgument(int32_t argc, char *argv[]) {
-
+void parseArgument(int32_t argc, char* argv[]) {
   memset(&g_stConfInfo, 0, sizeof(SConfInfo));
-  g_stConfInfo.showMsgFlag   = 0;
-  g_stConfInfo.consumeDelay  = 8000;
+  g_stConfInfo.showMsgFlag = 0;
+  g_stConfInfo.consumeDelay = 8000;
   g_stConfInfo.consumeMsgCnt = 0;
-  
+
   for (int32_t i = 1; i < argc; i++) {
     if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0) {
       printHelp();
@@ -107,7 +104,7 @@ void parseArgument(int32_t argc, char *argv[]) {
       g_stConfInfo.consumeMsgCnt = atol(argv[++i]);
     } else {
       printf("%s unknow para: %s %s", GREEN, argv[++i], NC);
-	  exit(-1);
+      exit(-1);
     }
   }
 
@@ -117,91 +114,87 @@ void parseArgument(int32_t argc, char *argv[]) {
   pPrint("%s topicString:%s %s", GREEN, g_stConfInfo.topicString, NC);
   pPrint("%s keyString:%s %s", GREEN, g_stConfInfo.keyString, NC);  
   pPrint("%s showMsgFlag:%d %s", GREEN, g_stConfInfo.showMsgFlag, NC);
-#endif  
+#endif
 }
 
-void splitStr(char **arr, char *str, const char *del) {
-  char *s = strtok(str, del);
-  while(s != NULL) {
+void splitStr(char** arr, char* str, const char* del) {
+  char* s = strtok(str, del);
+  while (s != NULL) {
     *arr++ = s;
     s = strtok(NULL, del);
   }
 }
 
-void ltrim(char *str) 
-{ 
-    if (str == NULL || *str == '\0') 
-    { 
-        return; 
-    } 
-    int len = 0; 
-    char *p = str;
-    while (*p != '\0' && isspace(*p)) 
-    { 
-        ++p; ++len; 
-    } 
-    memmove(str, p, strlen(str) - len + 1); 
-    //return str; 
+void ltrim(char* str) {
+  if (str == NULL || *str == '\0') {
+    return;
+  }
+  int   len = 0;
+  char* p = str;
+  while (*p != '\0' && isspace(*p)) {
+    ++p;
+    ++len;
+  }
+  memmove(str, p, strlen(str) - len + 1);
+  // return str;
 }
 
-
 void parseInputString() {
-  //printf("topicString: %s\n", g_stConfInfo.topicString);
-  //printf("keyString: %s\n\n", g_stConfInfo.keyString);  
+  // printf("topicString: %s\n", g_stConfInfo.topicString);
+  // printf("keyString: %s\n\n", g_stConfInfo.keyString);
 
-  char *token;
+  char*      token;
   const char delim[2] = ",";
   const char ch = ':';
 
   token = strtok(g_stConfInfo.topicString, delim);
-  while(token != NULL) {
-    //printf("%s\n", token );
-	strcpy(g_stConfInfo.topics[g_stConfInfo.numOfTopic], token);  
+  while (token != NULL) {
+    // printf("%s\n", token );
+    strcpy(g_stConfInfo.topics[g_stConfInfo.numOfTopic], token);
     ltrim(g_stConfInfo.topics[g_stConfInfo.numOfTopic]);
-	//printf("%s\n", g_stConfInfo.topics[g_stConfInfo.numOfTopic]);
-	g_stConfInfo.numOfTopic++;
-	
+    // printf("%s\n", g_stConfInfo.topics[g_stConfInfo.numOfTopic]);
+    g_stConfInfo.numOfTopic++;
+
     token = strtok(NULL, delim);
   }
 
   token = strtok(g_stConfInfo.keyString, delim);
-  while(token != NULL) {
-    //printf("%s\n", token );
-  	{
-	char* pstr = token;
-	ltrim(pstr);
-	char *ret = strchr(pstr, ch);
-	memcpy(g_stConfInfo.key[g_stConfInfo.numOfKey], pstr, ret-pstr);	
-	strcpy(g_stConfInfo.value[g_stConfInfo.numOfKey], ret+1);
-	//printf("key: %s, value: %s\n", g_stConfInfo.key[g_stConfInfo.numOfKey], g_stConfInfo.value[g_stConfInfo.numOfKey]);
-	g_stConfInfo.numOfKey++;
+  while (token != NULL) {
+    // printf("%s\n", token );
+    {
+      char* pstr = token;
+      ltrim(pstr);
+      char* ret = strchr(pstr, ch);
+      memcpy(g_stConfInfo.key[g_stConfInfo.numOfKey], pstr, ret - pstr);
+      strcpy(g_stConfInfo.value[g_stConfInfo.numOfKey], ret + 1);
+      // printf("key: %s, value: %s\n", g_stConfInfo.key[g_stConfInfo.numOfKey],
+      // g_stConfInfo.value[g_stConfInfo.numOfKey]);
+      g_stConfInfo.numOfKey++;
     }
-	
+
     token = strtok(NULL, delim);
   }
 }
 
+static int running = 1;
+/*static void msg_process(tmq_message_t* message) { tmqShowMsg(message); }*/
 
-static int  running = 1;
-static void msg_process(tmq_message_t* message) { tmqShowMsg(message); }
-
-
-int queryDB(TAOS *taos, char *command) {
-	TAOS_RES *pRes = taos_query(taos, command);
-	int code = taos_errno(pRes);
-	//if ((code != 0) && (code != TSDB_CODE_RPC_AUTH_REQUIRED)) {
-	if (code != 0) {
-	  pError("failed to reason:%s, sql: %s", tstrerror(code), command);
-	  taos_free_result(pRes);
-	  return -1;
-	}
-	taos_free_result(pRes);
-	return 0 ;
+int queryDB(TAOS* taos, char* command) {
+  TAOS_RES* pRes = taos_query(taos, command);
+  int       code = taos_errno(pRes);
+  // if ((code != 0) && (code != TSDB_CODE_RPC_AUTH_REQUIRED)) {
+  if (code != 0) {
+    pError("failed to reason:%s, sql: %s", tstrerror(code), command);
+    taos_free_result(pRes);
+    return -1;
+  }
+  taos_free_result(pRes);
+  return 0;
 }
 
 tmq_t* build_consumer() {
   char sqlStr[1024] = {0};
-  
+
   TAOS* pConn = taos_connect(NULL, "root", "taosdata", NULL, 0);
   assert(pConn != NULL);
 
@@ -209,13 +202,13 @@ tmq_t* build_consumer() {
   TAOS_RES* pRes = taos_query(pConn, sqlStr);
   if (taos_errno(pRes) != 0) {
     printf("error in use db, reason:%s\n", taos_errstr(pRes));
-	taos_free_result(pRes);
-	exit(-1);
+    taos_free_result(pRes);
+    exit(-1);
   }
   taos_free_result(pRes);
 
   tmq_conf_t* conf = tmq_conf_new();
-  //tmq_conf_set(conf, "group.id", "tg2");
+  // tmq_conf_set(conf, "group.id", "tg2");
   for (int32_t i = 0; i < g_stConfInfo.numOfKey; i++) {
     tmq_conf_set(conf, g_stConfInfo.key[i], g_stConfInfo.value[i]);
   }
@@ -225,7 +218,7 @@ tmq_t* build_consumer() {
 
 tmq_list_t* build_topic_list() {
   tmq_list_t* topic_list = tmq_list_new();
-  //tmq_list_append(topic_list, "test_stb_topic_1");
+  // tmq_list_append(topic_list, "test_stb_topic_1");
   for (int32_t i = 0; i < g_stConfInfo.numOfTopic; i++) {
     tmq_list_append(topic_list, g_stConfInfo.topics[i]);
   }
@@ -239,21 +232,21 @@ void loop_consume(tmq_t* tmq) {
   int32_t totalRows = 0;
   int32_t skipLogNum = 0;
   while (running) {
-    tmq_message_t* tmqMsg = tmq_consumer_poll(tmq, 8000);
+    TAOS_RES* tmqMsg = tmq_consumer_poll(tmq, 8000);
     if (tmqMsg) {
-	  totalMsgs++;
+      totalMsgs++;
 
-	  #if 0
+#if 0
 	  TAOS_ROW row;
 	  while (NULL != (row = tmq_get_row(tmqMsg))) {
         totalRows++;
 	  }
-	  #endif
-	  
-      skipLogNum += tmqGetSkipLogNum(tmqMsg);
-	  if (0 != g_stConfInfo.showMsgFlag) {
-        msg_process(tmqMsg);
-	  }
+#endif
+
+      /*skipLogNum += tmqGetSkipLogNum(tmqMsg);*/
+      if (0 != g_stConfInfo.showMsgFlag) {
+        /*msg_process(tmqMsg);*/
+      }
       tmq_message_destroy(tmqMsg);
     } else {
       break;
@@ -263,13 +256,12 @@ void loop_consume(tmq_t* tmq) {
   err = tmq_consumer_close(tmq);
   if (err) {
     printf("tmq_consumer_close() fail, reason: %s\n", tmq_err2str(err));
-	exit(-1);
+    exit(-1);
   }
-  
+
   printf("{consume success: %d, %d}", totalMsgs, totalRows);
 }
 
-
 void parallel_consume(tmq_t* tmq) {
   tmq_resp_err_t err;
 
@@ -277,26 +269,26 @@ void parallel_consume(tmq_t* tmq) {
   int32_t totalRows = 0;
   int32_t skipLogNum = 0;
   while (running) {
-    tmq_message_t* tmqMsg = tmq_consumer_poll(tmq, g_stConfInfo.consumeDelay * 1000);
+    TAOS_RES* tmqMsg = tmq_consumer_poll(tmq, g_stConfInfo.consumeDelay * 1000);
     if (tmqMsg) {
-	  totalMsgs++;
+      totalMsgs++;
 
-	  #if 0
+#if 0
 	  TAOS_ROW row;
 	  while (NULL != (row = tmq_get_row(tmqMsg))) {
         totalRows++;
 	  }
-	  #endif
-	  
-      skipLogNum += tmqGetSkipLogNum(tmqMsg);
-	  if (0 != g_stConfInfo.showMsgFlag) {
-        msg_process(tmqMsg);
-	  }
+#endif
+
+      /*skipLogNum += tmqGetSkipLogNum(tmqMsg);*/
+      if (0 != g_stConfInfo.showMsgFlag) {
+        /*msg_process(tmqMsg);*/
+      }
       tmq_message_destroy(tmqMsg);
 
-	  if (totalMsgs >= g_stConfInfo.consumeMsgCnt) {
+      if (totalMsgs >= g_stConfInfo.consumeMsgCnt) {
         break;
-	  }
+      }
     } else {
       break;
     }
@@ -305,22 +297,22 @@ void parallel_consume(tmq_t* tmq) {
   err = tmq_consumer_close(tmq);
   if (err) {
     printf("tmq_consumer_close() fail, reason: %s\n", tmq_err2str(err));
-	exit(-1);
+    exit(-1);
   }
-  
-  printf("%d", totalMsgs); // output to sim for check result
+
+  printf("%d", totalMsgs);  // output to sim for check result
 }
 
-int main(int32_t argc, char *argv[]) {
+int main(int32_t argc, char* argv[]) {
   parseArgument(argc, argv);
   parseInputString();
-    
-  tmq_t*      tmq        = build_consumer();
+
+  tmq_t*      tmq = build_consumer();
   tmq_list_t* topic_list = build_topic_list();
-  if ((NULL == tmq) || (NULL == topic_list)){
+  if ((NULL == tmq) || (NULL == topic_list)) {
     return -1;
   }
-  
+
   tmq_resp_err_t err = tmq_subscribe(tmq, topic_list);
   if (err) {
     printf("tmq_subscribe() fail, reason: %s\n", tmq_err2str(err));