diff --git a/include/common/tmsg.h b/include/common/tmsg.h
index ae21986c56fb30f07438d33dd93dfecc0d88503e..72ec01798037eb85e06c9cb48180f2990f403ed2 100644
--- a/include/common/tmsg.h
+++ b/include/common/tmsg.h
@@ -2574,6 +2574,14 @@ static FORCE_INLINE void tDeleteSMqAskEpRsp(SMqAskEpRsp* pRsp) {
   taosArrayDestroyEx(pRsp->topics, (void (*)(void*))tDeleteSMqSubTopicEp);
 }
 
+typedef struct {
+  void* data;
+} SStreamDispatchReq;
+
+typedef struct {
+  int8_t status;
+} SStreamDispatchRsp;
+
 #define TD_AUTO_CREATE_TABLE 0x1
 typedef struct {
   int64_t        suid;
diff --git a/include/libs/stream/tstream.h b/include/libs/stream/tstream.h
index 56e6a39ce8e45af9894e47144afd327cbae28885..796fee4f89c231b11ab3c8fa20bcd55908c950e1 100644
--- a/include/libs/stream/tstream.h
+++ b/include/libs/stream/tstream.h
@@ -13,6 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "os.h"
 #include "tdatablock.h"
 #include "tmsg.h"
 #include "tmsgcb.h"
@@ -29,8 +30,22 @@ extern "C" {
 typedef struct SStreamTask SStreamTask;
 
 enum {
-  STREAM_TASK_STATUS__RUNNING = 1,
-  STREAM_TASK_STATUS__STOP,
+  TASK_STATUS__IDLE = 1,
+  TASK_STATUS__EXECUTING,
+  TASK_STATUS__CLOSING,
+};
+
+enum {
+  TASK_INPUT_STATUS__NORMAL = 1,
+  TASK_INPUT_STATUS__BLOCKED,
+  TASK_INPUT_STATUS__RECOVER,
+  TASK_INPUT_STATUS__STOP,
+};
+
+enum {
+  TASK_OUTPUT_STATUS__NORMAL = 1,
+  TASK_OUTPUT_STATUS__WAIT,
+  TASK_OUTPUT_STATUS__BLOCKED,
 };
 
 enum {
@@ -38,10 +53,64 @@ enum {
   STREAM_CREATED_BY__SMA,
 };
 
+enum {
+  STREAM_INPUT__DATA_SUBMIT = 1,
+  STREAM_INPUT__DATA_BLOCK,
+  STREAM_INPUT__CHECKPOINT,
+};
+
 typedef struct {
-  int32_t nodeId;  // 0 for snode
-  SEpSet  epSet;
-} SStreamTaskEp;
+  int8_t type;
+
+  int32_t sourceVg;
+  int64_t sourceVer;
+
+  int32_t*    dataRef;
+  SSubmitReq* data;
+} SStreamDataSubmit;
+
+typedef struct {
+  int8_t type;
+
+  int32_t sourceVg;
+  int64_t sourceVer;
+
+  SArray* blocks;  // SArray<SSDataBlock*>
+} SStreamDataBlock;
+
+typedef struct {
+  int8_t type;
+} SStreamCheckpoint;
+
+static FORCE_INLINE SStreamDataSubmit* streamDataSubmitNew(SSubmitReq* pReq) {
+  SStreamDataSubmit* pDataSubmit = (SStreamDataSubmit*)taosMemoryCalloc(1, sizeof(SStreamDataSubmit));
+  if (pDataSubmit == NULL) return NULL;
+  pDataSubmit->data = pReq;
+  pDataSubmit->dataRef = (int32_t*)taosMemoryMalloc(sizeof(int32_t));
+  if (pDataSubmit->data == NULL) goto FAIL;
+  *pDataSubmit->dataRef = 1;
+  return pDataSubmit;
+FAIL:
+  taosMemoryFree(pDataSubmit);
+  return NULL;
+}
+
+static FORCE_INLINE void streamDataSubmitRefInc(SStreamDataSubmit* pDataSubmit) {
+  //
+  atomic_add_fetch_32(pDataSubmit->dataRef, 1);
+}
+
+static FORCE_INLINE void streamDataSubmitRefDec(SStreamDataSubmit* pDataSubmit) {
+  int32_t ref = atomic_sub_fetch_32(pDataSubmit->dataRef, 1);
+  ASSERT(ref >= 0);
+  if (ref == 0) {
+    taosMemoryFree(pDataSubmit->data);
+    taosMemoryFree(pDataSubmit->dataRef);
+  }
+}
+
+int32_t streamDataBlockEncode(void** buf, const SStreamDataBlock* pOutput);
+void*   streamDataBlockDecode(const void* buf, SStreamDataBlock* pInput);
 
 typedef struct {
   void* inputHandle;
@@ -122,9 +191,15 @@ enum {
   TASK_SINK__FETCH,
 };
 
+enum {
+  TASK_INPUT_TYPE__SUMBIT_BLOCK = 1,
+  TASK_INPUT_TYPE__DATA_BLOCK,
+};
+
 struct SStreamTask {
   int64_t streamId;
   int32_t taskId;
+  int8_t  inputType;
   int8_t  status;
 
   int8_t  sourceType;
@@ -155,9 +230,11 @@ struct SStreamTask {
     STaskDispatcherShuffle shuffleDispatcher;
   };
 
-  // msg buffer
-  int32_t     memUsed;
+  int8_t inputStatus;
+  int8_t outputStatus;
+
   STaosQueue* inputQ;
+  STaosQueue* outputQ;
 
   // application storage
   void* ahandle;
@@ -199,10 +276,16 @@ typedef struct {
   SArray* res;  // SArray<SSDataBlock>
 } SStreamSinkReq;
 
-int32_t streamEnqueueData(SStreamTask* pTask, const void* input, int32_t inputType);
+int32_t streamEnqueueDataSubmit(SStreamTask* pTask, SStreamDataSubmit* input);
+int32_t streamEnqueueDataBlk(SStreamTask* pTask, SStreamDataBlock* input);
+int32_t streamDequeueOutput(SStreamTask* pTask, void** output);
 
 int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, int32_t inputType, int32_t workId);
 
+int32_t streamTaskExecNew(SStreamTask* pTask);
+
+int32_t streamTaskHandleInput(SStreamTask* pTask, void* data);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/include/os/osAtomic.h b/include/os/osAtomic.h
index e2a122a0fe4f220f00576941906e74b1e8036339..8600992d68050d3ba80767cf687c6b21b4a23c77 100644
--- a/include/os/osAtomic.h
+++ b/include/os/osAtomic.h
@@ -23,92 +23,92 @@ extern "C" {
 // If the error is in a third-party library, place this header file under the third-party library header file.
 // When you want to use this feature, you should find or add the same function in the following section.
 #ifndef ALLOW_FORBID_FUNC
-  #define __atomic_load_n __ATOMIC_LOAD_N_FUNC_TAOS_FORBID
-  #define __atomic_store_n __ATOMIC_STORE_N_FUNC_TAOS_FORBID
-  #define __atomic_exchange_n __ATOMIC_EXCHANGE_N_FUNC_TAOS_FORBID
-  #define __sync_val_compare_and_swap __SYNC_VAL_COMPARE_AND_SWAP_FUNC_TAOS_FORBID
-  #define __atomic_add_fetch __ATOMIC_ADD_FETCH_FUNC_TAOS_FORBID
-  #define __atomic_fetch_add __ATOMIC_FETCH_ADD_FUNC_TAOS_FORBID
-  #define __atomic_sub_fetch __ATOMIC_SUB_FETCH_FUNC_TAOS_FORBID
-  #define __atomic_fetch_sub __ATOMIC_FETCH_SUB_FUNC_TAOS_FORBID
-  #define __atomic_and_fetch __ATOMIC_AND_FETCH_FUNC_TAOS_FORBID
-  #define __atomic_fetch_and __ATOMIC_FETCH_AND_FUNC_TAOS_FORBID
-  #define __atomic_or_fetch __ATOMIC_OR_FETCH_FUNC_TAOS_FORBID
-  #define __atomic_fetch_or __ATOMIC_FETCH_OR_FUNC_TAOS_FORBID
-  #define __atomic_xor_fetch __ATOMIC_XOR_FETCH_FUNC_TAOS_FORBID
-  #define __atomic_fetch_xor __ATOMIC_FETCH_XOR_FUNC_TAOS_FORBID
+#define __atomic_load_n             __ATOMIC_LOAD_N_FUNC_TAOS_FORBID
+#define __atomic_store_n            __ATOMIC_STORE_N_FUNC_TAOS_FORBID
+#define __atomic_exchange_n         __ATOMIC_EXCHANGE_N_FUNC_TAOS_FORBID
+#define __sync_val_compare_and_swap __SYNC_VAL_COMPARE_AND_SWAP_FUNC_TAOS_FORBID
+#define __atomic_add_fetch          __ATOMIC_ADD_FETCH_FUNC_TAOS_FORBID
+#define __atomic_fetch_add          __ATOMIC_FETCH_ADD_FUNC_TAOS_FORBID
+#define __atomic_sub_fetch          __ATOMIC_SUB_FETCH_FUNC_TAOS_FORBID
+#define __atomic_fetch_sub          __ATOMIC_FETCH_SUB_FUNC_TAOS_FORBID
+#define __atomic_and_fetch          __ATOMIC_AND_FETCH_FUNC_TAOS_FORBID
+#define __atomic_fetch_and          __ATOMIC_FETCH_AND_FUNC_TAOS_FORBID
+#define __atomic_or_fetch           __ATOMIC_OR_FETCH_FUNC_TAOS_FORBID
+#define __atomic_fetch_or           __ATOMIC_FETCH_OR_FUNC_TAOS_FORBID
+#define __atomic_xor_fetch          __ATOMIC_XOR_FETCH_FUNC_TAOS_FORBID
+#define __atomic_fetch_xor          __ATOMIC_FETCH_XOR_FUNC_TAOS_FORBID
 #endif
 
-int8_t atomic_load_8(int8_t volatile *ptr);
+int8_t  atomic_load_8(int8_t volatile *ptr);
 int16_t atomic_load_16(int16_t volatile *ptr);
 int32_t atomic_load_32(int32_t volatile *ptr);
 int64_t atomic_load_64(int64_t volatile *ptr);
-void* atomic_load_ptr(void *ptr);
-void atomic_store_8(int8_t volatile *ptr, int8_t val);
-void atomic_store_16(int16_t volatile *ptr, int16_t val);
-void atomic_store_32(int32_t volatile *ptr, int32_t val);
-void atomic_store_64(int64_t volatile *ptr, int64_t val);
-void atomic_store_ptr(void *ptr, void *val);
-int8_t atomic_exchange_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_load_ptr(void *ptr);
+void    atomic_store_8(int8_t volatile *ptr, int8_t val);
+void    atomic_store_16(int16_t volatile *ptr, int16_t val);
+void    atomic_store_32(int32_t volatile *ptr, int32_t val);
+void    atomic_store_64(int64_t volatile *ptr, int64_t val);
+void    atomic_store_ptr(void *ptr, void *val);
+int8_t  atomic_exchange_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_exchange_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_exchange_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_exchange_64(int64_t volatile *ptr, int64_t val);
-void* atomic_exchange_ptr(void *ptr, void *val);
-int8_t atomic_val_compare_exchange_8(int8_t volatile *ptr, int8_t oldval, int8_t newval);
+void   *atomic_exchange_ptr(void *ptr, void *val);
+int8_t  atomic_val_compare_exchange_8(int8_t volatile *ptr, int8_t oldval, int8_t newval);
 int16_t atomic_val_compare_exchange_16(int16_t volatile *ptr, int16_t oldval, int16_t newval);
 int32_t atomic_val_compare_exchange_32(int32_t volatile *ptr, int32_t oldval, int32_t newval);
 int64_t atomic_val_compare_exchange_64(int64_t volatile *ptr, int64_t oldval, int64_t newval);
-void* atomic_val_compare_exchange_ptr(void *ptr, void *oldval, void *newval);
-int8_t atomic_add_fetch_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_val_compare_exchange_ptr(void *ptr, void *oldval, void *newval);
+int8_t  atomic_add_fetch_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_add_fetch_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_add_fetch_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_add_fetch_64(int64_t volatile *ptr, int64_t val);
-void* atomic_add_fetch_ptr(void *ptr, void *val);
-int8_t atomic_fetch_add_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_add_fetch_ptr(void *ptr, void *val);
+int8_t  atomic_fetch_add_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_fetch_add_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_fetch_add_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_fetch_add_64(int64_t volatile *ptr, int64_t val);
-void* atomic_fetch_add_ptr(void *ptr, void *val);
-int8_t atomic_sub_fetch_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_fetch_add_ptr(void *ptr, void *val);
+int8_t  atomic_sub_fetch_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_sub_fetch_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_sub_fetch_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_sub_fetch_64(int64_t volatile *ptr, int64_t val);
-void* atomic_sub_fetch_ptr(void *ptr, void *val);
-int8_t atomic_fetch_sub_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_sub_fetch_ptr(void *ptr, void *val);
+int8_t  atomic_fetch_sub_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_fetch_sub_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_fetch_sub_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_fetch_sub_64(int64_t volatile *ptr, int64_t val);
-void* atomic_fetch_sub_ptr(void *ptr, void *val);
-int8_t atomic_and_fetch_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_fetch_sub_ptr(void *ptr, void *val);
+int8_t  atomic_and_fetch_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_and_fetch_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_and_fetch_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_and_fetch_64(int64_t volatile *ptr, int64_t val);
-void* atomic_and_fetch_ptr(void *ptr, void *val);
-int8_t atomic_fetch_and_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_and_fetch_ptr(void *ptr, void *val);
+int8_t  atomic_fetch_and_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_fetch_and_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_fetch_and_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_fetch_and_64(int64_t volatile *ptr, int64_t val);
-void* atomic_fetch_and_ptr(void *ptr, void *val);
-int8_t atomic_or_fetch_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_fetch_and_ptr(void *ptr, void *val);
+int8_t  atomic_or_fetch_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_or_fetch_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_or_fetch_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_or_fetch_64(int64_t volatile *ptr, int64_t val);
-void* atomic_or_fetch_ptr(void *ptr, void *val);
-int8_t atomic_fetch_or_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_or_fetch_ptr(void *ptr, void *val);
+int8_t  atomic_fetch_or_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_fetch_or_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_fetch_or_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_fetch_or_64(int64_t volatile *ptr, int64_t val);
-void* atomic_fetch_or_ptr(void *ptr, void *val);
-int8_t atomic_xor_fetch_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_fetch_or_ptr(void *ptr, void *val);
+int8_t  atomic_xor_fetch_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_xor_fetch_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_xor_fetch_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_xor_fetch_64(int64_t volatile *ptr, int64_t val);
-void* atomic_xor_fetch_ptr(void *ptr, void *val);
-int8_t atomic_fetch_xor_8(int8_t volatile *ptr, int8_t val);
+void   *atomic_xor_fetch_ptr(void *ptr, void *val);
+int8_t  atomic_fetch_xor_8(int8_t volatile *ptr, int8_t val);
 int16_t atomic_fetch_xor_16(int16_t volatile *ptr, int16_t val);
 int32_t atomic_fetch_xor_32(int32_t volatile *ptr, int32_t val);
 int64_t atomic_fetch_xor_64(int64_t volatile *ptr, int64_t val);
-void* atomic_fetch_xor_ptr(void *ptr, void *val);
+void   *atomic_fetch_xor_ptr(void *ptr, void *val);
 
 #ifdef __cplusplus
 }
diff --git a/source/dnode/mnode/impl/src/mndDef.c b/source/dnode/mnode/impl/src/mndDef.c
index 8225eca6596918c784d4d98ea49eca291b0c538d..35ba25acd54abf39351e51cfea42152f41b57b9e 100644
--- a/source/dnode/mnode/impl/src/mndDef.c
+++ b/source/dnode/mnode/impl/src/mndDef.c
@@ -17,6 +17,147 @@
 #include "mndDef.h"
 #include "mndConsumer.h"
 
+int32_t tEncodeSStreamObj(SEncoder *pEncoder, const SStreamObj *pObj) {
+  int32_t sz = 0;
+  /*int32_t outputNameSz = 0;*/
+  if (tEncodeCStr(pEncoder, pObj->name) < 0) return -1;
+  if (tEncodeCStr(pEncoder, pObj->sourceDb) < 0) return -1;
+  if (tEncodeCStr(pEncoder, pObj->targetDb) < 0) return -1;
+  if (tEncodeCStr(pEncoder, pObj->targetSTbName) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->targetStbUid) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->createTime) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->updateTime) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->uid) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->dbUid) < 0) return -1;
+  if (tEncodeI32(pEncoder, pObj->version) < 0) return -1;
+  if (tEncodeI8(pEncoder, pObj->status) < 0) return -1;
+  if (tEncodeI8(pEncoder, pObj->createdBy) < 0) return -1;
+  if (tEncodeI8(pEncoder, pObj->trigger) < 0) return -1;
+  if (tEncodeI32(pEncoder, pObj->triggerParam) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->waterMark) < 0) return -1;
+  if (tEncodeI32(pEncoder, pObj->fixedSinkVgId) < 0) return -1;
+  if (tEncodeI64(pEncoder, pObj->smaId) < 0) return -1;
+  if (tEncodeCStr(pEncoder, pObj->sql) < 0) return -1;
+  /*if (tEncodeCStr(pEncoder, pObj->logicalPlan) < 0) return -1;*/
+  if (tEncodeCStr(pEncoder, pObj->physicalPlan) < 0) return -1;
+  // TODO encode tasks
+  if (pObj->tasks) {
+    sz = taosArrayGetSize(pObj->tasks);
+  }
+  if (tEncodeI32(pEncoder, sz) < 0) return -1;
+
+  for (int32_t i = 0; i < sz; i++) {
+    SArray *pArray = taosArrayGetP(pObj->tasks, i);
+    int32_t innerSz = taosArrayGetSize(pArray);
+    if (tEncodeI32(pEncoder, innerSz) < 0) return -1;
+    for (int32_t j = 0; j < innerSz; j++) {
+      SStreamTask *pTask = taosArrayGetP(pArray, j);
+      if (tEncodeSStreamTask(pEncoder, pTask) < 0) return -1;
+    }
+  }
+
+  if (tEncodeSSchemaWrapper(pEncoder, &pObj->outputSchema) < 0) return -1;
+
+#if 0
+  if (pObj->ColAlias != NULL) {
+    outputNameSz = taosArrayGetSize(pObj->ColAlias);
+  }
+  if (tEncodeI32(pEncoder, outputNameSz) < 0) return -1;
+  for (int32_t i = 0; i < outputNameSz; i++) {
+    char *name = taosArrayGetP(pObj->ColAlias, i);
+    if (tEncodeCStr(pEncoder, name) < 0) return -1;
+  }
+#endif
+  return pEncoder->pos;
+}
+
+int32_t tDecodeSStreamObj(SDecoder *pDecoder, SStreamObj *pObj) {
+  if (tDecodeCStrTo(pDecoder, pObj->name) < 0) return -1;
+  if (tDecodeCStrTo(pDecoder, pObj->sourceDb) < 0) return -1;
+  if (tDecodeCStrTo(pDecoder, pObj->targetDb) < 0) return -1;
+  if (tDecodeCStrTo(pDecoder, pObj->targetSTbName) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->targetStbUid) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->createTime) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->updateTime) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->uid) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->dbUid) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pObj->version) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pObj->status) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pObj->createdBy) < 0) return -1;
+  if (tDecodeI8(pDecoder, &pObj->trigger) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pObj->triggerParam) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->waterMark) < 0) return -1;
+  if (tDecodeI32(pDecoder, &pObj->fixedSinkVgId) < 0) return -1;
+  if (tDecodeI64(pDecoder, &pObj->smaId) < 0) return -1;
+  if (tDecodeCStrAlloc(pDecoder, &pObj->sql) < 0) return -1;
+  /*if (tDecodeCStrAlloc(pDecoder, &pObj->logicalPlan) < 0) return -1;*/
+  if (tDecodeCStrAlloc(pDecoder, &pObj->physicalPlan) < 0) return -1;
+  pObj->tasks = NULL;
+  int32_t sz;
+  if (tDecodeI32(pDecoder, &sz) < 0) return -1;
+  if (sz != 0) {
+    pObj->tasks = taosArrayInit(sz, sizeof(void *));
+    for (int32_t i = 0; i < sz; i++) {
+      int32_t innerSz;
+      if (tDecodeI32(pDecoder, &innerSz) < 0) return -1;
+      SArray *pArray = taosArrayInit(innerSz, sizeof(void *));
+      for (int32_t j = 0; j < innerSz; j++) {
+        SStreamTask *pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
+        if (pTask == NULL) return -1;
+        if (tDecodeSStreamTask(pDecoder, pTask) < 0) return -1;
+        taosArrayPush(pArray, &pTask);
+      }
+      taosArrayPush(pObj->tasks, &pArray);
+    }
+  }
+
+  if (tDecodeSSchemaWrapper(pDecoder, &pObj->outputSchema) < 0) return -1;
+#if 0
+  int32_t outputNameSz;
+  if (tDecodeI32(pDecoder, &outputNameSz) < 0) return -1;
+  if (outputNameSz != 0) {
+    pObj->ColAlias = taosArrayInit(outputNameSz, sizeof(void *));
+    if (pObj->ColAlias == NULL) {
+      return -1;
+    }
+  }
+  for (int32_t i = 0; i < outputNameSz; i++) {
+    char *name;
+    if (tDecodeCStrAlloc(pDecoder, &name) < 0) return -1;
+    taosArrayPush(pObj->ColAlias, &name);
+  }
+#endif
+  return 0;
+}
+
+SMqVgEp *tCloneSMqVgEp(const SMqVgEp *pVgEp) {
+  SMqVgEp *pVgEpNew = taosMemoryMalloc(sizeof(SMqVgEp));
+  if (pVgEpNew == NULL) return NULL;
+  pVgEpNew->vgId = pVgEp->vgId;
+  pVgEpNew->qmsg = strdup(pVgEp->qmsg);
+  pVgEpNew->epSet = pVgEp->epSet;
+  return pVgEpNew;
+}
+
+void tDeleteSMqVgEp(SMqVgEp *pVgEp) {
+  if (pVgEp->qmsg) taosMemoryFree(pVgEp->qmsg);
+}
+
+int32_t tEncodeSMqVgEp(void **buf, const SMqVgEp *pVgEp) {
+  int32_t tlen = 0;
+  tlen += taosEncodeFixedI32(buf, pVgEp->vgId);
+  tlen += taosEncodeString(buf, pVgEp->qmsg);
+  tlen += taosEncodeSEpSet(buf, &pVgEp->epSet);
+  return tlen;
+}
+
+void *tDecodeSMqVgEp(const void *buf, SMqVgEp *pVgEp) {
+  buf = taosDecodeFixedI32(buf, &pVgEp->vgId);
+  buf = taosDecodeString(buf, &pVgEp->qmsg);
+  buf = taosDecodeSEpSet(buf, &pVgEp->epSet);
+  return (void *)buf;
+}
+
 SMqConsumerObj *tNewSMqConsumerObj(int64_t consumerId, char cgroup[TSDB_CGROUP_LEN]) {
   SMqConsumerObj *pConsumer = taosMemoryCalloc(1, sizeof(SMqConsumerObj));
   if (pConsumer == NULL) {
@@ -187,34 +328,6 @@ void *tDecodeSMqConsumerObj(const void *buf, SMqConsumerObj *pConsumer) {
   return (void *)buf;
 }
 
-SMqVgEp *tCloneSMqVgEp(const SMqVgEp *pVgEp) {
-  SMqVgEp *pVgEpNew = taosMemoryMalloc(sizeof(SMqVgEp));
-  if (pVgEpNew == NULL) return NULL;
-  pVgEpNew->vgId = pVgEp->vgId;
-  pVgEpNew->qmsg = strdup(pVgEp->qmsg);
-  pVgEpNew->epSet = pVgEp->epSet;
-  return pVgEpNew;
-}
-
-void tDeleteSMqVgEp(SMqVgEp *pVgEp) {
-  if (pVgEp->qmsg) taosMemoryFree(pVgEp->qmsg);
-}
-
-int32_t tEncodeSMqVgEp(void **buf, const SMqVgEp *pVgEp) {
-  int32_t tlen = 0;
-  tlen += taosEncodeFixedI32(buf, pVgEp->vgId);
-  tlen += taosEncodeString(buf, pVgEp->qmsg);
-  tlen += taosEncodeSEpSet(buf, &pVgEp->epSet);
-  return tlen;
-}
-
-void *tDecodeSMqVgEp(const void *buf, SMqVgEp *pVgEp) {
-  buf = taosDecodeFixedI32(buf, &pVgEp->vgId);
-  buf = taosDecodeString(buf, &pVgEp->qmsg);
-  buf = taosDecodeSEpSet(buf, &pVgEp->epSet);
-  return (void *)buf;
-}
-
 SMqConsumerEp *tCloneSMqConsumerEp(const SMqConsumerEp *pConsumerEpOld) {
   SMqConsumerEp *pConsumerEpNew = taosMemoryMalloc(sizeof(SMqConsumerEp));
   if (pConsumerEpNew == NULL) return NULL;
@@ -413,119 +526,6 @@ void *tDecodeSMqSubActionLogObj(const void *buf, SMqSubActionLogObj *pLog) {
   return (void *)buf;
 }
 
-int32_t tEncodeSStreamObj(SEncoder *pEncoder, const SStreamObj *pObj) {
-  int32_t sz = 0;
-  /*int32_t outputNameSz = 0;*/
-  if (tEncodeCStr(pEncoder, pObj->name) < 0) return -1;
-  if (tEncodeCStr(pEncoder, pObj->sourceDb) < 0) return -1;
-  if (tEncodeCStr(pEncoder, pObj->targetDb) < 0) return -1;
-  if (tEncodeCStr(pEncoder, pObj->targetSTbName) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->targetStbUid) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->createTime) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->updateTime) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->uid) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->dbUid) < 0) return -1;
-  if (tEncodeI32(pEncoder, pObj->version) < 0) return -1;
-  if (tEncodeI8(pEncoder, pObj->status) < 0) return -1;
-  if (tEncodeI8(pEncoder, pObj->createdBy) < 0) return -1;
-  if (tEncodeI8(pEncoder, pObj->trigger) < 0) return -1;
-  if (tEncodeI32(pEncoder, pObj->triggerParam) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->waterMark) < 0) return -1;
-  if (tEncodeI32(pEncoder, pObj->fixedSinkVgId) < 0) return -1;
-  if (tEncodeI64(pEncoder, pObj->smaId) < 0) return -1;
-  if (tEncodeCStr(pEncoder, pObj->sql) < 0) return -1;
-  /*if (tEncodeCStr(pEncoder, pObj->logicalPlan) < 0) return -1;*/
-  if (tEncodeCStr(pEncoder, pObj->physicalPlan) < 0) return -1;
-  // TODO encode tasks
-  if (pObj->tasks) {
-    sz = taosArrayGetSize(pObj->tasks);
-  }
-  if (tEncodeI32(pEncoder, sz) < 0) return -1;
-
-  for (int32_t i = 0; i < sz; i++) {
-    SArray *pArray = taosArrayGetP(pObj->tasks, i);
-    int32_t innerSz = taosArrayGetSize(pArray);
-    if (tEncodeI32(pEncoder, innerSz) < 0) return -1;
-    for (int32_t j = 0; j < innerSz; j++) {
-      SStreamTask *pTask = taosArrayGetP(pArray, j);
-      if (tEncodeSStreamTask(pEncoder, pTask) < 0) return -1;
-    }
-  }
-
-  if (tEncodeSSchemaWrapper(pEncoder, &pObj->outputSchema) < 0) return -1;
-
-#if 0
-  if (pObj->ColAlias != NULL) {
-    outputNameSz = taosArrayGetSize(pObj->ColAlias);
-  }
-  if (tEncodeI32(pEncoder, outputNameSz) < 0) return -1;
-  for (int32_t i = 0; i < outputNameSz; i++) {
-    char *name = taosArrayGetP(pObj->ColAlias, i);
-    if (tEncodeCStr(pEncoder, name) < 0) return -1;
-  }
-#endif
-  return pEncoder->pos;
-}
-
-int32_t tDecodeSStreamObj(SDecoder *pDecoder, SStreamObj *pObj) {
-  if (tDecodeCStrTo(pDecoder, pObj->name) < 0) return -1;
-  if (tDecodeCStrTo(pDecoder, pObj->sourceDb) < 0) return -1;
-  if (tDecodeCStrTo(pDecoder, pObj->targetDb) < 0) return -1;
-  if (tDecodeCStrTo(pDecoder, pObj->targetSTbName) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->targetStbUid) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->createTime) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->updateTime) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->uid) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->dbUid) < 0) return -1;
-  if (tDecodeI32(pDecoder, &pObj->version) < 0) return -1;
-  if (tDecodeI8(pDecoder, &pObj->status) < 0) return -1;
-  if (tDecodeI8(pDecoder, &pObj->createdBy) < 0) return -1;
-  if (tDecodeI8(pDecoder, &pObj->trigger) < 0) return -1;
-  if (tDecodeI32(pDecoder, &pObj->triggerParam) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->waterMark) < 0) return -1;
-  if (tDecodeI32(pDecoder, &pObj->fixedSinkVgId) < 0) return -1;
-  if (tDecodeI64(pDecoder, &pObj->smaId) < 0) return -1;
-  if (tDecodeCStrAlloc(pDecoder, &pObj->sql) < 0) return -1;
-  /*if (tDecodeCStrAlloc(pDecoder, &pObj->logicalPlan) < 0) return -1;*/
-  if (tDecodeCStrAlloc(pDecoder, &pObj->physicalPlan) < 0) return -1;
-  pObj->tasks = NULL;
-  int32_t sz;
-  if (tDecodeI32(pDecoder, &sz) < 0) return -1;
-  if (sz != 0) {
-    pObj->tasks = taosArrayInit(sz, sizeof(void *));
-    for (int32_t i = 0; i < sz; i++) {
-      int32_t innerSz;
-      if (tDecodeI32(pDecoder, &innerSz) < 0) return -1;
-      SArray *pArray = taosArrayInit(innerSz, sizeof(void *));
-      for (int32_t j = 0; j < innerSz; j++) {
-        SStreamTask *pTask = taosMemoryCalloc(1, sizeof(SStreamTask));
-        if (pTask == NULL) return -1;
-        if (tDecodeSStreamTask(pDecoder, pTask) < 0) return -1;
-        taosArrayPush(pArray, &pTask);
-      }
-      taosArrayPush(pObj->tasks, &pArray);
-    }
-  }
-
-  if (tDecodeSSchemaWrapper(pDecoder, &pObj->outputSchema) < 0) return -1;
-#if 0
-  int32_t outputNameSz;
-  if (tDecodeI32(pDecoder, &outputNameSz) < 0) return -1;
-  if (outputNameSz != 0) {
-    pObj->ColAlias = taosArrayInit(outputNameSz, sizeof(void *));
-    if (pObj->ColAlias == NULL) {
-      return -1;
-    }
-  }
-  for (int32_t i = 0; i < outputNameSz; i++) {
-    char *name;
-    if (tDecodeCStrAlloc(pDecoder, &name) < 0) return -1;
-    taosArrayPush(pObj->ColAlias, &name);
-  }
-#endif
-  return 0;
-}
-
 int32_t tEncodeSMqOffsetObj(void **buf, const SMqOffsetObj *pOffset) {
   int32_t tlen = 0;
   tlen += taosEncodeString(buf, pOffset->key);
diff --git a/source/dnode/mnode/impl/test/trans/trans2.cpp b/source/dnode/mnode/impl/test/trans/trans2.cpp
index 974c86b4231b03b53821bd1aece9a40c18200eec..061ede345d15db174e44000458648b7a62ef1d31 100644
--- a/source/dnode/mnode/impl/test/trans/trans2.cpp
+++ b/source/dnode/mnode/impl/test/trans/trans2.cpp
@@ -510,4 +510,4 @@ TEST_F(MndTestTrans2, 04_Conflict) {
     ASSERT_EQ(pUser, nullptr);
     mndReleaseUser(pMnode, pUser);
   }
-}
\ No newline at end of file
+}
diff --git a/source/dnode/vnode/src/tq/tq.c b/source/dnode/vnode/src/tq/tq.c
index 952645190760826528e4e31d96c88cd8638eb7cf..ac8a271a4f3faa8a6e467e5f0c837fe7619db844 100644
--- a/source/dnode/vnode/src/tq/tq.c
+++ b/source/dnode/vnode/src/tq/tq.c
@@ -1031,3 +1031,37 @@ int32_t tqProcessTaskExec(STQ* pTq, char* msg, int32_t msgLen, int32_t workerId)
   }
   return 0;
 }
+
+int32_t tqProcessTaskExec2(STQ* pTq, char* msg, int32_t msgLen) {
+  SStreamTaskExecReq req = {0};
+  tDecodeSStreamTaskExecReq(msg, &req);
+  int32_t taskId = req.taskId;
+
+  SStreamTask* pTask = taosHashGet(pTq->pStreamTasks, &taskId, sizeof(int32_t));
+  ASSERT(pTask);
+  ASSERT(pTask->inputType == TASK_INPUT_TYPE__DATA_BLOCK);
+
+  // enqueue
+  int32_t inputStatus = streamEnqueueDataBlk(pTask, (SStreamDataBlock*)req.data);
+  if (inputStatus == TASK_INPUT_STATUS__BLOCKED) {
+    // TODO rsp blocked
+    return 0;
+  }
+
+  // try exec
+  int8_t execStatus = atomic_val_compare_exchange_8(&pTask->status, TASK_STATUS__IDLE, TASK_STATUS__EXECUTING);
+  if (execStatus == TASK_STATUS__IDLE) {
+    if (streamTaskExecNew(pTask) < 0) {
+      atomic_store_8(&pTask->status, TASK_STATUS__CLOSING);
+
+      goto FAIL;
+    }
+  } else if (execStatus == TASK_STATUS__EXECUTING) {
+    return 0;
+  }
+
+  // TODO rsp success
+  return 0;
+FAIL:
+  return -1;
+}
diff --git a/source/libs/stream/src/tstream.c b/source/libs/stream/src/tstream.c
index 08093c8b184a47fa5e65d77ce4f5a56fe5d86ff6..33147a0c0aeb2eb65c00b72955e61f4d4c06a6fb 100644
--- a/source/libs/stream/src/tstream.c
+++ b/source/libs/stream/src/tstream.c
@@ -16,6 +16,25 @@
 #include "tstream.h"
 #include "executor.h"
 
+int32_t streamDataBlockEncode(void** buf, const SStreamDataBlock* pOutput) {
+  int32_t tlen = 0;
+  tlen += taosEncodeFixedI8(buf, pOutput->type);
+  tlen += taosEncodeFixedI32(buf, pOutput->sourceVg);
+  tlen += taosEncodeFixedI64(buf, pOutput->sourceVer);
+  ASSERT(pOutput->type == STREAM_INPUT__DATA_BLOCK);
+  tlen += tEncodeDataBlocks(buf, pOutput->blocks);
+  return tlen;
+}
+
+void* streamDataBlockDecode(const void* buf, SStreamDataBlock* pInput) {
+  buf = taosDecodeFixedI8(buf, &pInput->type);
+  buf = taosDecodeFixedI32(buf, &pInput->sourceVg);
+  buf = taosDecodeFixedI64(buf, &pInput->sourceVer);
+  ASSERT(pInput->type == STREAM_INPUT__DATA_BLOCK);
+  buf = tDecodeDataBlocks(buf, &pInput->blocks);
+  return (void*)buf;
+}
+
 static int32_t streamBuildDispatchMsg(SStreamTask* pTask, SArray* data, SRpcMsg* pMsg, SEpSet** ppEpSet) {
   SStreamTaskExecReq req = {
       .streamId = pTask->streamId,
@@ -97,6 +116,226 @@ static int32_t streamShuffleDispatch(SStreamTask* pTask, SMsgCb* pMsgCb, SHashOb
   return 0;
 }
 
+int32_t streamEnqueueDataSubmit(SStreamTask* pTask, SStreamDataSubmit* input) {
+  ASSERT(pTask->inputType == TASK_INPUT_TYPE__SUMBIT_BLOCK);
+  int8_t inputStatus = atomic_load_8(&pTask->inputStatus);
+  if (inputStatus == TASK_INPUT_STATUS__NORMAL) {
+    streamDataSubmitRefInc(input);
+    taosWriteQitem(pTask->inputQ, input);
+  }
+  return inputStatus;
+}
+
+int32_t streamEnqueueDataBlk(SStreamTask* pTask, SStreamDataBlock* input) {
+  ASSERT(pTask->inputType == TASK_INPUT_TYPE__DATA_BLOCK);
+  taosWriteQitem(pTask->inputQ, input);
+  int8_t inputStatus = atomic_load_8(&pTask->inputStatus);
+  return inputStatus;
+}
+
+int32_t streamTaskProcessTriggerReq(SStreamTask* pTask, SMsgCb* pMsgCb, char* msg, int32_t msgLen) {
+  //
+  return 0;
+}
+
+int32_t streamTaskProcessInputReq(SStreamTask* pTask, SMsgCb* pMsgCb, SStreamDataBlock* pBlock, SRpcMsg* pRsp) {
+  // 1. handle input
+  // 1.1 enqueue
+  taosWriteQitem(pTask->inputQ, pBlock);
+  // 1.2 calc back pressure
+  // 1.3 rsp by input status
+  int8_t              inputStatus = atomic_load_8(&pTask->inputStatus);
+  SStreamDispatchRsp* pCont = rpcMallocCont(sizeof(SStreamDispatchRsp));
+  pCont->status = inputStatus;
+  pRsp->pCont = pCont;
+  pRsp->contLen = sizeof(SStreamDispatchRsp);
+  tmsgSendRsp(pRsp);
+  // 2. try exec
+  // 2.1. idle: exec
+  // 2.2. executing: return
+  // 2.3. closing: keep trying
+  while (1) {
+    int8_t execStatus = atomic_val_compare_exchange_8(&pTask->status, TASK_STATUS__IDLE, TASK_STATUS__EXECUTING);
+    void*  exec = pTask->exec.runners[0].executor;
+    if (execStatus == TASK_STATUS__IDLE) {
+      SArray*       pRes = taosArrayInit(0, sizeof(void*));
+      const SArray* blocks = pBlock->blocks;
+      qSetMultiStreamInput(exec, blocks->pData, blocks->size, STREAM_DATA_TYPE_SSDATA_BLOCK);
+      while (1) {
+        SSDataBlock* output;
+        uint64_t     ts = 0;
+        if (qExecTask(exec, &output, &ts) < 0) {
+          ASSERT(false);
+        }
+        if (output == NULL) break;
+        taosArrayPush(pRes, &output);
+      }
+      // TODO: wrap destroy block
+      taosArrayDestroyP(pBlock->blocks, (FDelete)blockDataDestroy);
+
+      if (taosArrayGetSize(pRes) != 0) {
+        SArray** resQ = taosAllocateQitem(sizeof(void**), DEF_QITEM);
+        *resQ = pRes;
+        taosWriteQitem(pTask->outputQ, resQ);
+      }
+
+    } else if (execStatus == TASK_STATUS__CLOSING) {
+      continue;
+    } else if (execStatus == TASK_STATUS__EXECUTING)
+      break;
+    else {
+      ASSERT(0);
+    }
+  }
+  // 3. handle output
+  // 3.1 check and set status
+  // 3.2 dispatch / sink
+  STaosQall* qall = taosAllocateQall();
+  taosReadAllQitems(pTask->outputQ, qall);
+  SArray** ppRes = NULL;
+  while (1) {
+    taosGetQitem(qall, (void**)&ppRes);
+    if (ppRes == NULL) break;
+
+    SArray* pRes = *ppRes;
+    if (pTask->sinkType == TASK_SINK__TABLE) {
+      pTask->tbSink.tbSinkFunc(pTask, pTask->tbSink.vnode, pBlock->sourceVer, pRes);
+    } else if (pTask->sinkType == TASK_SINK__SMA) {
+      pTask->smaSink.smaSink(pTask->ahandle, pTask->smaSink.smaId, pRes);
+    } else {
+    }
+
+    // dispatch
+    if (pTask->dispatchType == TASK_DISPATCH__INPLACE) {
+      SRpcMsg dispatchMsg = {0};
+      if (streamBuildDispatchMsg(pTask, pRes, &dispatchMsg, NULL) < 0) {
+        ASSERT(0);
+        return -1;
+      }
+
+      int32_t qType;
+      if (pTask->dispatchMsgType == TDMT_VND_TASK_PIPE_EXEC || pTask->dispatchMsgType == TDMT_SND_TASK_PIPE_EXEC) {
+        qType = FETCH_QUEUE;
+      } else if (pTask->dispatchMsgType == TDMT_VND_TASK_MERGE_EXEC ||
+                 pTask->dispatchMsgType == TDMT_SND_TASK_MERGE_EXEC) {
+        qType = MERGE_QUEUE;
+      } else if (pTask->dispatchMsgType == TDMT_VND_TASK_WRITE_EXEC) {
+        qType = WRITE_QUEUE;
+      } else {
+        ASSERT(0);
+      }
+      tmsgPutToQueue(pMsgCb, qType, &dispatchMsg);
+
+    } else if (pTask->dispatchType == TASK_DISPATCH__FIXED) {
+      SRpcMsg dispatchMsg = {0};
+      SEpSet* pEpSet = NULL;
+      if (streamBuildDispatchMsg(pTask, pRes, &dispatchMsg, &pEpSet) < 0) {
+        ASSERT(0);
+        return -1;
+      }
+
+      tmsgSendReq(pMsgCb, pEpSet, &dispatchMsg);
+
+    } else if (pTask->dispatchType == TASK_DISPATCH__SHUFFLE) {
+      SHashObj* pShuffleRes = taosHashInit(64, taosGetDefaultHashFunction(TSDB_DATA_TYPE_INT), false, HASH_NO_LOCK);
+      if (pShuffleRes == NULL) {
+        return -1;
+      }
+
+      int32_t sz = taosArrayGetSize(pRes);
+      for (int32_t i = 0; i < sz; i++) {
+        SSDataBlock* pDataBlock = taosArrayGet(pRes, i);
+        SArray*      pArray = taosHashGet(pShuffleRes, &pDataBlock->info.groupId, sizeof(int64_t));
+        if (pArray == NULL) {
+          pArray = taosArrayInit(0, sizeof(SSDataBlock));
+          if (pArray == NULL) {
+            return -1;
+          }
+          taosHashPut(pShuffleRes, &pDataBlock->info.groupId, sizeof(int64_t), &pArray, sizeof(void*));
+        }
+        taosArrayPush(pArray, pDataBlock);
+      }
+
+      if (streamShuffleDispatch(pTask, pMsgCb, pShuffleRes) < 0) {
+        return -1;
+      }
+
+    } else {
+      ASSERT(pTask->dispatchType == TASK_DISPATCH__NONE);
+    }
+  }
+  //
+  return 0;
+}
+
+int32_t streamTaskProcessDispatchRsp(SStreamTask* pTask, char* msg, int32_t msgLen) {
+  //
+  return 0;
+}
+
+int32_t streamTaskProcessRecoverReq(SStreamTask* pTask, char* msg) {
+  //
+  return 0;
+}
+
+int32_t streamTaskExecNew(SStreamTask* pTask) {
+  SArray* pRes = NULL;
+  if (pTask->execType == TASK_EXEC__PIPE || pTask->execType == TASK_EXEC__MERGE) {
+    // TODO remove multi runner
+    void* exec = pTask->exec.runners[0].executor;
+
+    int8_t status = atomic_val_compare_exchange_8(&pTask->status, TASK_STATUS__IDLE, TASK_STATUS__EXECUTING);
+    if (status == TASK_STATUS__IDLE) {
+      pRes = taosArrayInit(0, sizeof(void*));
+      if (pRes == NULL) {
+        return -1;
+      }
+
+      void* input = NULL;
+      taosWriteQitem(pTask->inputQ, &input);
+      if (input == NULL) return 0;
+
+      // TODO: fix type
+      if (pTask->sourceType == TASK_SOURCE__SCAN) {
+        SStreamDataSubmit* pSubmit = (SStreamDataSubmit*)input;
+        qSetStreamInput(exec, pSubmit->data, STREAM_DATA_TYPE_SUBMIT_BLOCK);
+        while (1) {
+          SSDataBlock* output;
+          uint64_t     ts = 0;
+          if (qExecTask(exec, &output, &ts) < 0) {
+            ASSERT(false);
+          }
+          if (output == NULL) break;
+          taosArrayPush(pRes, &output);
+        }
+        streamDataSubmitRefDec(pSubmit);
+      } else {
+        SStreamDataBlock* pStreamBlock = (SStreamDataBlock*)input;
+        const SArray*     blocks = pStreamBlock->blocks;
+        qSetMultiStreamInput(exec, blocks->pData, blocks->size, STREAM_DATA_TYPE_SSDATA_BLOCK);
+        while (1) {
+          SSDataBlock* output;
+          uint64_t     ts = 0;
+          if (qExecTask(exec, &output, &ts) < 0) {
+            ASSERT(false);
+          }
+          if (output == NULL) break;
+          taosArrayPush(pRes, &output);
+        }
+        // TODO: wrap destroy block
+        taosArrayDestroyP(pStreamBlock->blocks, (FDelete)blockDataDestroy);
+      }
+
+      if (taosArrayGetSize(pRes) != 0) {
+        SArray** resQ = taosAllocateQitem(sizeof(void**), DEF_QITEM);
+        *resQ = pRes;
+        taosWriteQitem(pTask->outputQ, resQ);
+      }
+    }
+  }
+  return 0;
+}
+
 int32_t streamExecTask(SStreamTask* pTask, SMsgCb* pMsgCb, const void* input, int32_t inputType, int32_t workId) {
   SArray* pRes = NULL;
   // source
@@ -251,9 +490,17 @@ SStreamTask* tNewSStreamTask(int64_t streamId) {
   }
   pTask->taskId = tGenIdPI32();
   pTask->streamId = streamId;
-  pTask->status = STREAM_TASK_STATUS__RUNNING;
-  /*pTask->qmsg = NULL;*/
+  pTask->status = TASK_STATUS__IDLE;
+
+  pTask->inputQ = taosOpenQueue();
+  pTask->outputQ = taosOpenQueue();
+  if (pTask->inputQ == NULL || pTask->outputQ == NULL) goto FAIL;
   return pTask;
+FAIL:
+  if (pTask->inputQ) taosCloseQueue(pTask->inputQ);
+  if (pTask->outputQ) taosCloseQueue(pTask->outputQ);
+  if (pTask) taosMemoryFree(pTask);
+  return NULL;
 }
 
 int32_t tEncodeSStreamTask(SEncoder* pEncoder, const SStreamTask* pTask) {
@@ -349,10 +596,16 @@ int32_t tDecodeSStreamTask(SDecoder* pDecoder, SStreamTask* pTask) {
 }
 
 void tFreeSStreamTask(SStreamTask* pTask) {
+  taosCloseQueue(pTask->inputQ);
+  taosCloseQueue(pTask->outputQ);
   // TODO
-  /*taosMemoryFree(pTask->qmsg);*/
+  if (pTask->exec.qmsg) taosMemoryFree(pTask->exec.qmsg);
+  for (int32_t i = 0; i < pTask->exec.numOfRunners; i++) {
+    qDestroyTask(pTask->exec.runners[i].executor);
+  }
+  taosMemoryFree(pTask->exec.runners);
   /*taosMemoryFree(pTask->executor);*/
-  /*taosMemoryFree(pTask);*/
+  taosMemoryFree(pTask);
 }
 
 #if 0
diff --git a/tests/script/tsim/tstream/basic1.sim b/tests/script/tsim/tstream/basic1.sim
index 3bb5943b3b48b23115b48bb96e1bf41c186836f3..37f9cb94c9753fbed5afebd3c66210ced04d21a8 100644
--- a/tests/script/tsim/tstream/basic1.sim
+++ b/tests/script/tsim/tstream/basic1.sim
@@ -136,7 +136,7 @@ if $data35 != 3 then
 endi
 
 sql insert into t1 values(1648791223001,12,14,13,11.1);
-sleep 100
+sleep 500
 sql select _wstartts, c1, c2 ,c3 ,c4, c5 from streamt;
 
 if $rows != 4 then