diff --git a/include/common/ttypes.h b/include/common/ttypes.h
index 5aa22bdcad..a936ea3b54 100644
--- a/include/common/ttypes.h
+++ b/include/common/ttypes.h
@@ -27,7 +27,7 @@ extern "C" {
 typedef int32_t  VarDataOffsetT;
 typedef uint32_t TDRowLenT;
 typedef uint8_t  TDRowValT;
-typedef uint16_t col_id_t;
+typedef int16_t  col_id_t;
 typedef int8_t   col_type_t;
 
 #pragma pack(push, 1)
diff --git a/include/libs/nodes/plannodes.h b/include/libs/nodes/plannodes.h
index 39ecd89619..18417cb608 100644
--- a/include/libs/nodes/plannodes.h
+++ b/include/libs/nodes/plannodes.h
@@ -166,6 +166,7 @@ typedef struct SScanPhysiNode {
 
 typedef SScanPhysiNode SSystemTableScanPhysiNode;
 typedef SScanPhysiNode STagScanPhysiNode;
+typedef SScanPhysiNode SStreamScanPhysiNode;
 
 typedef struct STableScanPhysiNode {
   SScanPhysiNode scan;
diff --git a/include/libs/nodes/querynodes.h b/include/libs/nodes/querynodes.h
index fe44d8666b..a55a0e218d 100644
--- a/include/libs/nodes/querynodes.h
+++ b/include/libs/nodes/querynodes.h
@@ -23,6 +23,9 @@ extern "C" {
 #include "nodes.h"
 #include "tmsg.h"
 
+#define TABLE_META_SIZE(pMeta) (NULL == (pMeta) ? 0 : (sizeof(STableMeta) + ((pMeta)->tableInfo.numOfColumns + (pMeta)->tableInfo.numOfTags) * sizeof(SSchema)))
+#define VGROUPS_INFO_SIZE(pInfo) (NULL == (pInfo) ? 0 : (sizeof(SVgroupsInfo) + (pInfo)->numOfVgroups * sizeof(SVgroupInfo)))
+
 typedef struct SRawExprNode {
   ENodeType nodeType;
   char* p;
diff --git a/include/libs/parser/parser.h b/include/libs/parser/parser.h
index 77838c705f..23bcdabb1b 100644
--- a/include/libs/parser/parser.h
+++ b/include/libs/parser/parser.h
@@ -26,6 +26,7 @@ typedef struct SParseContext {
   uint64_t         requestId;
   int32_t          acctId;
   const char      *db;
+  bool             streamQuery;
   void            *pTransporter;
   SEpSet           mgmtEpSet;
   const char      *pSql;           // sql string
diff --git a/include/util/tjson.h b/include/util/tjson.h
index 1218caae35..b27f3b93ac 100644
--- a/include/util/tjson.h
+++ b/include/util/tjson.h
@@ -44,6 +44,7 @@ int32_t tjsonGetIntValue(const SJson* pJson, const char* pName, int32_t* pVal);
 int32_t tjsonGetSmallIntValue(const SJson* pJson, const char* pName, int16_t* pVal);
 int32_t tjsonGetTinyIntValue(const SJson* pJson, const char* pName, int8_t* pVal);
 int32_t tjsonGetUBigIntValue(const SJson* pJson, const char* pName, uint64_t* pVal);
+int32_t tjsonGetUIntValue(const SJson* pJson, const char* pName, uint32_t* pVal);
 int32_t tjsonGetUTinyIntValue(const SJson* pJson, const char* pName, uint8_t* pVal);
 int32_t tjsonGetBoolValue(const SJson* pJson, const char* pName, bool* pVal);
 int32_t tjsonGetDoubleValue(const SJson* pJson, const char* pName, double* pVal);
@@ -60,6 +61,7 @@ int32_t tjsonAddArray(SJson* pJson, const char* pName, FToJson func, const void*
 typedef int32_t (*FToObject)(const SJson* pJson, void* pObj);
 
 int32_t tjsonToObject(const SJson* pJson, const char* pName, FToObject func, void* pObj);
+int32_t tjsonMakeObject(const SJson* pJson, const char* pName, FToObject func, void** pObj, int32_t objSize);
 int32_t tjsonToArray(const SJson* pJson, const char* pName, FToObject func, void* pArray, int32_t itemSize);
 
 char* tjsonToString(const SJson* pJson);
diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index b672c9bb47..e341729a8f 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -179,6 +179,7 @@ typedef struct SRequestObj {
   uint64_t             requestId;
   int32_t              type;  // request type
   STscObj*             pTscObj;
+  char*                pDb;
   char*                sqlstr;  // sql string
   int32_t              sqlLen;
   int64_t              self;
@@ -229,7 +230,7 @@ void setResultDataPtr(SReqResultInfo* pResultInfo, TAOS_FIELD* pFields, int32_t
 
 int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj** pRequest);
 
-int32_t parseSql(SRequestObj* pRequest, SQuery** pQuery);
+int32_t parseSql(SRequestObj* pRequest, bool streamQuery, SQuery** pQuery);
 int32_t getPlan(SRequestObj* pRequest, SQuery* pQuery, SQueryPlan** pPlan, SArray* pNodeList);
 
 // --- heartbeat
diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 525c5f9fb8..2233742625 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -150,6 +150,7 @@ void *createRequest(STscObj *pObj, __taos_async_fn_t fp, void *param, int32_t ty
     return NULL;
   }
 
+  pRequest->pDb = getDbOfConnection(pObj);
   pRequest->requestId = generateRequestId();
   pRequest->metric.start = taosGetTimestampMs();
 
@@ -180,6 +181,7 @@ static void doDestroyRequest(void *p) {
   tfree(pRequest->msgBuf);
   tfree(pRequest->sqlstr);
   tfree(pRequest->pInfo);
+  tfree(pRequest->pDb);
 
   doFreeReqResultInfo(&pRequest->body.resInfo);
   qDestroyQueryPlan(pRequest->body.pDag);
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index fc97f4113c..aa94ed42fd 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -137,13 +137,14 @@ int32_t buildRequest(STscObj* pTscObj, const char* sql, int sqlLen, SRequestObj*
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t parseSql(SRequestObj* pRequest, SQuery** pQuery) {
+int32_t parseSql(SRequestObj* pRequest, bool streamQuery, SQuery** pQuery) {
   STscObj* pTscObj = pRequest->pTscObj;
 
   SParseContext cxt = {
       .requestId = pRequest->requestId,
       .acctId = pTscObj->acctId,
-      .db = getDbOfConnection(pTscObj),
+      .db = pRequest->pDb,
+      .streamQuery = streamQuery,
       .pSql = pRequest->sqlstr,
       .sqlLen = pRequest->sqlLen,
       .pMsg = pRequest->msgBuf,
@@ -154,7 +155,6 @@ int32_t parseSql(SRequestObj* pRequest, SQuery** pQuery) {
   cxt.mgmtEpSet = getEpSet_s(&pTscObj->pAppInfo->mgmtEp);
   int32_t code = catalogGetHandle(pTscObj->pAppInfo->clusterId, &cxt.pCatalog);
   if (code != TSDB_CODE_SUCCESS) {
-    tfree(cxt.db);
     return code;
   }
 
@@ -163,7 +163,6 @@ int32_t parseSql(SRequestObj* pRequest, SQuery** pQuery) {
     setResSchemaInfo(&pRequest->body.resInfo, (*pQuery)->pResSchema, (*pQuery)->numOfResCols);
   }
 
-  tfree(cxt.db);
   return code;
 }
 
@@ -249,7 +248,7 @@ TAOS_RES* taos_query_l(TAOS* taos, const char* sql, int sqlLen) {
 
   terrno = TSDB_CODE_SUCCESS;
   CHECK_CODE_GOTO(buildRequest(pTscObj, sql, sqlLen, &pRequest), _return);
-  CHECK_CODE_GOTO(parseSql(pRequest, &pQuery), _return);
+  CHECK_CODE_GOTO(parseSql(pRequest, false, &pQuery), _return);
 
   if (pQuery->directRpc) {
     CHECK_CODE_GOTO(execDdlQuery(pRequest, pQuery), _return);
diff --git a/source/client/src/tmq.c b/source/client/src/tmq.c
index ee13527b96..2aebd67c56 100644
--- a/source/client/src/tmq.c
+++ b/source/client/src/tmq.c
@@ -482,38 +482,24 @@ TAOS_RES* tmq_create_topic(TAOS* taos, const char* topicName, const char* sql, i
   }
 
   tscDebug("start to create topic, %s", topicName);
-#if 0
-  CHECK_CODE_GOTO(buildRequest(pTscObj, sql, sqlLen, &pRequest), _return);
-  CHECK_CODE_GOTO(parseSql(pRequest, &pQueryNode), _return);
 
-  pQueryNode->streamQuery = true;
+  CHECK_CODE_GOTO(buildRequest(pTscObj, sql, sqlLen, &pRequest), _return);
+  CHECK_CODE_GOTO(parseSql(pRequest, true, &pQueryNode), _return);
 
   // todo check for invalid sql statement and return with error code
 
-  SSchema* schema = NULL;
-  int32_t  numOfCols = 0;
-  CHECK_CODE_GOTO(getPlan(pRequest, pQueryNode, &pRequest->body.pDag, NULL), _return);
-
-  pStr = qQueryPlanToString(pRequest->body.pDag);
-  if (pStr == NULL) {
-    goto _return;
-  }
+  CHECK_CODE_GOTO(nodesNodeToString(pQueryNode->pRoot, false, &pStr, NULL), _return);
 
   /*printf("%s\n", pStr);*/
 
-  // The topic should be related to a database that the queried table is belonged to.
-  SName name = {0};
-  char  dbName[TSDB_DB_FNAME_LEN] = {0};
-  // tNameGetFullDbName(&((SQueryStmtInfo*)pQueryNode)->pTableMetaInfo[0]->name, dbName);
-
-  tNameFromString(&name, dbName, T_NAME_ACCT | T_NAME_DB);
-  tNameFromString(&name, topicName, T_NAME_TABLE);
+  SName name = { .acctId = pTscObj->acctId, .type = TSDB_TABLE_NAME_T };
+  strcpy(name.dbname, pRequest->pDb);
+  strcpy(name.tname, topicName);
 
   SCMCreateTopicReq req = {
       .igExists = 1,
-      .physicalPlan = (char*)pStr,
+      .ast = (char*)pStr,
       .sql = (char*)sql,
-      .logicalPlan = (char*)"no logic plan",
   };
   tNameExtractFullName(&name, req.name);
 
@@ -536,7 +522,7 @@ TAOS_RES* tmq_create_topic(TAOS* taos, const char* topicName, const char* sql, i
   asyncSendMsgToServer(pTscObj->pAppInfo->pTransporter, &epSet, &transporterId, sendInfo);
 
   tsem_wait(&pRequest->body.rspSem);
-#endif
+
 _return:
   qDestroyQuery(pQueryNode);
   /*if (sendInfo != NULL) {*/
diff --git a/source/common/src/tdatablock.c b/source/common/src/tdatablock.c
index 4b649d5f62..31328cc4b2 100644
--- a/source/common/src/tdatablock.c
+++ b/source/common/src/tdatablock.c
@@ -1072,6 +1072,10 @@ void blockDataClearup(SSDataBlock* pDataBlock) {
 }
 
 int32_t blockDataEnsureColumnCapacity(SColumnInfoData* pColumn, uint32_t numOfRows) {
+  if (0 == numOfRows) {
+    return TSDB_CODE_SUCCESS;
+  }
+
   if (IS_VAR_DATA_TYPE(pColumn->info.type)) {
     char* tmp = realloc(pColumn->varmeta.offset, sizeof(int32_t) * numOfRows);
     if (tmp == NULL) {
@@ -1092,7 +1096,7 @@ int32_t blockDataEnsureColumnCapacity(SColumnInfoData* pColumn, uint32_t numOfRo
 
     pColumn->nullbitmap = tmp;
     memset(pColumn->nullbitmap, 0, BitmapLen(numOfRows));
-
+    assert(pColumn->info.bytes);
     tmp = realloc(pColumn->pData, numOfRows * pColumn->info.bytes);
     if (tmp == NULL) {
       return TSDB_CODE_OUT_OF_MEMORY;
@@ -1137,7 +1141,7 @@ void* blockDataDestroy(SSDataBlock* pBlock) {
 
   taosArrayDestroy(pBlock->pDataBlock);
   tfree(pBlock->pBlockAgg);
-  tfree(pBlock);
+  // tfree(pBlock);
   return NULL;
 }
 
@@ -1190,7 +1194,7 @@ int32_t tEncodeDataBlock(void** buf, const SSDataBlock* pBlock) {
     }
 
     int32_t len = colDataGetLength(pColData, rows);
-    taosEncodeFixedI32(buf, len);
+    tlen += taosEncodeFixedI32(buf, len);
 
     tlen += taosEncodeBinary(buf, pColData->pData, len);
   }
diff --git a/source/dnode/vnode/src/tq/tqRead.c b/source/dnode/vnode/src/tq/tqRead.c
index a2342ec85a..0c4b933c19 100644
--- a/source/dnode/vnode/src/tq/tqRead.c
+++ b/source/dnode/vnode/src/tq/tqRead.c
@@ -13,6 +13,7 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include "tdatablock.h"
 #include "vnode.h"
 
 STqReadHandle* tqInitSubmitMsgScanner(SMeta* pMeta) {
@@ -128,10 +129,13 @@ SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
 
   int j = 0;
   for (int32_t i = 0; i < colNumNeed; i++) {
-    int32_t colId = *(int32_t*)taosArrayGet(pHandle->pColIdList, i);
+    int16_t colId = *(int16_t*)taosArrayGet(pHandle->pColIdList, i);
     while (j < pSchemaWrapper->nCols && pSchemaWrapper->pSchema[j].colId < colId) {
       j++;
     }
+    if (j >= pSchemaWrapper->nCols) {
+      continue;
+    }
     SSchema*        pColSchema = &pSchemaWrapper->pSchema[j];
     SColumnInfoData colInfo = {0};
     int             sz = numOfRows * pColSchema->bytes;
@@ -145,6 +149,8 @@ SArray* tqRetrieveDataBlock(STqReadHandle* pHandle) {
       taosArrayDestroy(pArray);
       return NULL;
     }
+
+    blockDataEnsureColumnCapacity(&colInfo, numOfRows);
     taosArrayPush(pArray, &colInfo);
   }
 
diff --git a/source/libs/nodes/src/nodesCloneFuncs.c b/source/libs/nodes/src/nodesCloneFuncs.c
index d1dc2dec58..d66203eb40 100644
--- a/source/libs/nodes/src/nodesCloneFuncs.c
+++ b/source/libs/nodes/src/nodesCloneFuncs.c
@@ -197,7 +197,7 @@ static SNode* logicNodeCopy(const SLogicNode* pSrc, SLogicNode* pDst) {
 }
 
 static STableMeta* tableMetaClone(const STableMeta* pSrc) {
-  int32_t len = sizeof(STableMeta) + (pSrc->tableInfo.numOfTags + pSrc->tableInfo.numOfColumns) * sizeof(SSchema);
+  int32_t len = TABLE_META_SIZE(pSrc);
   STableMeta* pDst = malloc(len);
   if (NULL == pDst) {
     return NULL;
@@ -207,7 +207,7 @@ static STableMeta* tableMetaClone(const STableMeta* pSrc) {
 }
 
 static SVgroupsInfo* vgroupsInfoClone(const SVgroupsInfo* pSrc) {
-  int32_t len = sizeof(SVgroupsInfo) + pSrc->numOfVgroups * sizeof(SVgroupInfo);
+  int32_t len = VGROUPS_INFO_SIZE(pSrc);
   SVgroupsInfo* pDst = malloc(len);
   if (NULL == pDst) {
     return NULL;
diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index 44f2318cc4..c61a2d71fb 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -193,6 +193,17 @@ static int32_t tableMetaToJson(const void* pObj, SJson* pJson) {
   return code;
 }
 
+static int32_t jsonToTableMeta(const SJson* pJson, void* pObj) {
+  STableMeta* pNode = (STableMeta*)pObj;
+
+  int32_t code = tjsonGetUBigIntValue(pJson, jkTableMetaUid, &pNode->uid);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetUBigIntValue(pJson, jkTableMetaSuid, &pNode->suid);
+  }
+
+  return code;
+}
+
 static const char* jkLogicPlanTargets = "Targets";
 static const char* jkLogicPlanConditions = "Conditions";
 static const char* jkLogicPlanChildren = "Children";
@@ -441,6 +452,14 @@ static int32_t jsonToPhysiTableScanNode(const SJson* pJson, void* pObj) {
   return code;
 }
 
+static int32_t physiStreamScanNodeToJson(const void* pObj, SJson* pJson) {
+  return physiScanNodeToJson(pObj, pJson);
+}
+
+static int32_t jsonToPhysiStreamScanNode(const SJson* pJson, void* pObj) {
+  return jsonToPhysiScanNode(pJson, pObj);
+}
+
 static const char* jkProjectPhysiPlanProjections = "Projections";
 
 static int32_t physiProjectNodeToJson(const void* pObj, SJson* pJson) {
@@ -1269,6 +1288,193 @@ static int32_t jsonToFunctionNode(const SJson* pJson, void* pObj) {
   return code;
 }
 
+static const char* jkTableDbName = "DbName";
+static const char* jkTableTableName = "tableName";
+static const char* jkTableTableAlias = "tableAlias";
+
+static int32_t tableNodeToJson(const void* pObj, SJson* pJson) {
+  const STableNode* pNode = (const STableNode*)pObj;
+
+  int32_t code = exprNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkTableDbName, pNode->dbName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkTableTableName, pNode->tableName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddStringToObject(pJson, jkTableTableAlias, pNode->tableAlias);
+  }
+
+  return code;
+}
+
+static int32_t jsonToTableNode(const SJson* pJson, void* pObj) {
+  STableNode* pNode = (STableNode*)pObj;
+
+  int32_t code = jsonToExprNode(pJson, pObj);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetStringValue(pJson, jkTableDbName, pNode->dbName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetStringValue(pJson, jkTableTableName, pNode->tableName);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetStringValue(pJson, jkTableTableAlias, pNode->tableAlias);
+  }
+
+  return code;
+}
+
+static const char* jkEpSetInUse = "InUse";
+static const char* jkEpSetNumOfEps = "NumOfEps";
+static const char* jkEpSetEps = "Eps";
+
+static int32_t epSetToJson(const void* pObj, SJson* pJson) {
+  const SEpSet* pNode = (const SEpSet*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkEpSetInUse, pNode->inUse);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkEpSetNumOfEps, pNode->numOfEps);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddArray(pJson, jkEpSetEps, epToJson, pNode->eps, sizeof(SEp), pNode->numOfEps);
+  }
+
+  return code;
+}
+
+static int32_t jsonToEpSet(const SJson* pJson, void* pObj) {
+  SEpSet* pNode = (SEpSet*)pObj;
+
+  int32_t code = tjsonGetTinyIntValue(pJson, jkEpSetInUse, &pNode->inUse);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetTinyIntValue(pJson, jkEpSetNumOfEps, &pNode->numOfEps);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonToArray(pJson, jkEpSetEps, jsonToEp, pNode->eps, sizeof(SEp));
+  }
+
+  return code;
+}
+
+static const char* jkVgroupInfoVgId = "VgId";
+static const char* jkVgroupInfoHashBegin = "HashBegin";
+static const char* jkVgroupInfoHashEnd = "HashEnd";
+static const char* jkVgroupInfoEpSet = "EpSet";
+static const char* jkVgroupInfoNumOfTable = "NumOfTable";
+
+static int32_t vgroupInfoToJson(const void* pObj, SJson* pJson) {
+  const SVgroupInfo* pNode = (const SVgroupInfo*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkVgroupInfoVgId, pNode->vgId);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkVgroupInfoHashBegin, pNode->hashBegin);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkVgroupInfoHashEnd, pNode->hashEnd);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkVgroupInfoEpSet, epSetToJson, &pNode->epSet);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkVgroupInfoNumOfTable, pNode->numOfTable);
+  }
+
+  return code;
+}
+
+static int32_t jsonToVgroupInfo(const SJson* pJson, void* pObj) {
+  SVgroupInfo* pNode = (SVgroupInfo*)pObj;
+
+  int32_t code = tjsonGetIntValue(pJson, jkVgroupInfoVgId, &pNode->vgId);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetUIntValue(pJson, jkVgroupInfoHashBegin, &pNode->hashBegin);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetUIntValue(pJson, jkVgroupInfoHashEnd, &pNode->hashEnd);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonToObject(pJson, jkVgroupInfoEpSet, jsonToEpSet, &pNode->epSet);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetIntValue(pJson, jkVgroupInfoNumOfTable, &pNode->numOfTable);
+  }
+
+  return code;
+}
+
+static const char* jkVgroupsInfoNum = "Num";
+static const char* jkVgroupsInfoVgroups = "Vgroups";
+
+static int32_t vgroupsInfoToJson(const void* pObj, SJson* pJson) {
+  const SVgroupsInfo* pNode = (const SVgroupsInfo*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkVgroupsInfoNum, pNode->numOfVgroups);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddArray(pJson, jkVgroupsInfoVgroups, vgroupInfoToJson, pNode->vgroups, sizeof(SVgroupInfo), pNode->numOfVgroups);
+  }
+
+  return code;
+}
+
+static int32_t jsonToVgroupsInfo(const SJson* pJson, void* pObj) {
+  SVgroupsInfo* pNode = (SVgroupsInfo*)pObj;
+
+  int32_t code = tjsonGetIntValue(pJson, jkVgroupsInfoNum, &pNode->numOfVgroups);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonToArray(pJson, jkVgroupsInfoVgroups, jsonToVgroupInfo, pNode->vgroups, sizeof(SVgroupInfo));
+  }
+
+  return code;
+}
+
+static const char* jkRealTableMetaSize = "MetaSize";
+static const char* jkRealTableMeta = "Meta";
+static const char* jkRealTableVgroupsInfoSize = "VgroupsInfoSize";
+static const char* jkRealTableVgroupsInfo = "VgroupsInfo";
+
+static int32_t realTableNodeToJson(const void* pObj, SJson* pJson) {
+  const SRealTableNode* pNode = (const SRealTableNode*)pObj;
+
+  int32_t code = tableNodeToJson(pObj, pJson);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkRealTableMetaSize, TABLE_META_SIZE(pNode->pMeta));
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkRealTableMeta, tableMetaToJson, pNode->pMeta);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkRealTableVgroupsInfoSize, VGROUPS_INFO_SIZE(pNode->pVgroupList));
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddObject(pJson, jkRealTableVgroupsInfo, vgroupsInfoToJson, pNode->pVgroupList);
+  }
+
+  return code;
+}
+
+static int32_t jsonToRealTableNode(const SJson* pJson, void* pObj) {
+  SRealTableNode* pNode = (SRealTableNode*)pObj;
+
+  int32_t objSize = 0;
+  int32_t code = jsonToTableNode(pJson, pObj);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetIntValue(pJson, jkRealTableMetaSize, &objSize);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonMakeObject(pJson, jkRealTableMeta, jsonToTableMeta, (void**)&pNode->pMeta, objSize);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetIntValue(pJson, jkRealTableVgroupsInfoSize, &objSize);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonMakeObject(pJson, jkRealTableVgroupsInfo, jsonToVgroupsInfo, (void**)&pNode->pVgroupList, objSize);
+  }
+
+  return code;
+}
+
 static const char* jkGroupingSetType = "GroupingSetType";
 static const char* jkGroupingSetParameter = "Parameters";
 
@@ -1460,7 +1666,7 @@ static const char* jkSelectStmtSlimit = "Slimit";
 static int32_t selectStmtTojson(const void* pObj, SJson* pJson) {
   const SSelectStmt* pNode = (const SSelectStmt*)pObj;
 
-  int32_t code = tjsonAddIntegerToObject(pJson, jkSelectStmtDistinct, pNode->isDistinct);
+  int32_t code = tjsonAddBoolToObject(pJson, jkSelectStmtDistinct, pNode->isDistinct);
   if (TSDB_CODE_SUCCESS == code) {
     code = nodeListToJson(pJson, jkSelectStmtProjections, pNode->pProjectionList);
   }
@@ -1495,6 +1701,44 @@ static int32_t selectStmtTojson(const void* pObj, SJson* pJson) {
   return code;
 }
 
+static int32_t jsonToSelectStmt(const SJson* pJson, void* pObj) {
+  SSelectStmt* pNode = (SSelectStmt*)pObj;
+
+  int32_t code = tjsonGetBoolValue(pJson, jkSelectStmtDistinct, &pNode->isDistinct);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeList(pJson, jkSelectStmtProjections, &pNode->pProjectionList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkSelectStmtFrom, &pNode->pFromTable);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkSelectStmtWhere, &pNode->pWhere);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeList(pJson, jkSelectStmtPartitionBy, &pNode->pPartitionByList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkSelectStmtWindow, &pNode->pWindow);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeList(pJson, jkSelectStmtGroupBy, &pNode->pGroupByList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkSelectStmtHaving, &pNode->pHaving);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeList(pJson, jkSelectStmtOrderBy, &pNode->pOrderByList);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkSelectStmtLimit, &pNode->pLimit);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeObject(pJson, jkSelectStmtSlimit, &pNode->pSlimit);
+  }
+
+  return code;
+}
+
 static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
   switch (nodeType(pObj)) {
     case QUERY_NODE_COLUMN:
@@ -1508,6 +1752,7 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
     case QUERY_NODE_FUNCTION:
       return functionNodeToJson(pObj, pJson);
     case QUERY_NODE_REAL_TABLE:
+      return realTableNodeToJson(pObj, pJson);
     case QUERY_NODE_TEMP_TABLE:
     case QUERY_NODE_JOIN_TABLE:
       break;
@@ -1561,9 +1806,8 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
       return physiTagScanNodeToJson(pObj, pJson);
     case QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN:
       return physiTableScanNodeToJson(pObj, pJson);
-    case QUERY_NODE_PHYSICAL_PLAN_TABLE_SEQ_SCAN:
     case QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN:
-      break;
+      return physiStreamScanNodeToJson(pObj, pJson);
     case QUERY_NODE_PHYSICAL_PLAN_PROJECT:
       return physiProjectNodeToJson(pObj, pJson);
     case QUERY_NODE_PHYSICAL_PLAN_JOIN:
@@ -1585,6 +1829,7 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
     case QUERY_NODE_PHYSICAL_PLAN:
       return planToJson(pObj, pJson);
     default:
+      assert(0);
       break;
   }
   nodesWarn("specificNodeToJson unknown node = %s", nodesNodeName(nodeType(pObj)));
@@ -1603,7 +1848,8 @@ static int32_t jsonToSpecificNode(const SJson* pJson, void* pObj) {
       return jsonToLogicConditionNode(pJson, pObj);
     case QUERY_NODE_FUNCTION:
       return jsonToFunctionNode(pJson, pObj);
-    // case QUERY_NODE_REAL_TABLE:
+    case QUERY_NODE_REAL_TABLE:
+      return jsonToRealTableNode(pJson, pObj);
     // case QUERY_NODE_TEMP_TABLE:
     // case QUERY_NODE_JOIN_TABLE:
     //   break;
@@ -1629,8 +1875,8 @@ static int32_t jsonToSpecificNode(const SJson* pJson, void* pObj) {
       return jsonToDownstreamSourceNode(pJson, pObj);
     // case QUERY_NODE_SET_OPERATOR:
     //   break;
-    // case QUERY_NODE_SELECT_STMT:
-    //   return jsonToSelectStmt(pJson, pObj);
+    case QUERY_NODE_SELECT_STMT:
+      return jsonToSelectStmt(pJson, pObj);
     // case QUERY_NODE_LOGIC_PLAN_SCAN:
     //   return jsonToLogicScanNode(pJson, pObj);
     // case QUERY_NODE_LOGIC_PLAN_JOIN:
@@ -1643,6 +1889,8 @@ static int32_t jsonToSpecificNode(const SJson* pJson, void* pObj) {
       return jsonToPhysiTagScanNode(pJson, pObj);
     case QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN:
       return jsonToPhysiTableScanNode(pJson, pObj);
+    case QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN:
+      return jsonToPhysiStreamScanNode(pJson, pObj);
     case QUERY_NODE_PHYSICAL_PLAN_PROJECT:
       return jsonToPhysiProjectNode(pJson, pObj);
     case QUERY_NODE_PHYSICAL_PLAN_JOIN:
@@ -1764,6 +2012,7 @@ int32_t nodesStringToNode(const char* pStr, SNode** pNode) {
   int32_t code = makeNodeByJson(pJson, pNode);
   if (TSDB_CODE_SUCCESS != code) {
     nodesDestroyNode(*pNode);
+    *pNode = NULL;
     terrno = code;
     return code;
   }
diff --git a/source/libs/nodes/src/nodesUtilFuncs.c b/source/libs/nodes/src/nodesUtilFuncs.c
index 48b9c3e094..0d48202f73 100644
--- a/source/libs/nodes/src/nodesUtilFuncs.c
+++ b/source/libs/nodes/src/nodesUtilFuncs.c
@@ -170,7 +170,7 @@ SNodeptr nodesMakeNode(ENodeType type) {
     case QUERY_NODE_PHYSICAL_PLAN_TABLE_SEQ_SCAN:
       return makeNode(type, sizeof(STableSeqScanPhysiNode));
     case QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN:
-      return makeNode(type, sizeof(SNode));
+      return makeNode(type, sizeof(SStreamScanPhysiNode));
     case QUERY_NODE_PHYSICAL_PLAN_PROJECT:
       return makeNode(type, sizeof(SProjectPhysiNode));
     case QUERY_NODE_PHYSICAL_PLAN_JOIN:
diff --git a/source/libs/parser/src/parTranslater.c b/source/libs/parser/src/parTranslater.c
index 03206e89cb..171ec81ca2 100644
--- a/source/libs/parser/src/parTranslater.c
+++ b/source/libs/parser/src/parTranslater.c
@@ -126,7 +126,7 @@ static void setColumnInfoByExpr(const STableNode* pTable, SExprNode* pExpr, SCol
 static int32_t createColumnNodeByTable(STranslateContext* pCxt, const STableNode* pTable, SNodeList* pList) {
   if (QUERY_NODE_REAL_TABLE == nodeType(pTable)) {
     const STableMeta* pMeta = ((SRealTableNode*)pTable)->pMeta;
-    int32_t nums = pMeta->tableInfo.numOfColumns + ((TSDB_SUPER_TABLE == pMeta->tableType)? pMeta->tableInfo.numOfTags:0);
+    int32_t nums = pMeta->tableInfo.numOfColumns + ((TSDB_SUPER_TABLE == pMeta->tableType) ? pMeta->tableInfo.numOfTags : 0);
     for (int32_t i = 0; i < nums; ++i) {
       SColumnNode* pCol = (SColumnNode*)nodesMakeNode(QUERY_NODE_COLUMN);
       if (NULL == pCol) {
@@ -499,6 +499,10 @@ static int32_t checkAggColCoexist(STranslateContext* pCxt, SSelectStmt* pSelect)
 }
 
 static int32_t setTableVgroupList(SParseContext* pCxt, SName* name, SRealTableNode* pRealTable) {
+  if (pCxt->streamQuery) {
+    return TSDB_CODE_SUCCESS;
+  }
+
   if (TSDB_SUPER_TABLE == pRealTable->pMeta->tableType) {
     SArray* vgroupList = NULL;
     int32_t code = catalogGetTableDistVgInfo(pCxt->pCatalog, pCxt->pTransporter, &pCxt->mgmtEpSet, name, &vgroupList);
@@ -1389,6 +1393,7 @@ static int32_t translateCreateTopic(STranslateContext* pCxt, SCreateTopicStmt* p
   SCMCreateTopicReq createReq = {0};
 
   if (NULL != pStmt->pQuery) {
+    pCxt->pParseCxt->streamQuery = true;
     int32_t code = translateQuery(pCxt, pStmt->pQuery);
     if (TSDB_CODE_SUCCESS == code) {
       code = nodesNodeToString(pStmt->pQuery, false, &createReq.ast, NULL);
diff --git a/source/libs/planner/src/planLogicCreater.c b/source/libs/planner/src/planLogicCreater.c
index fd03eacf3f..93615b0565 100644
--- a/source/libs/planner/src/planLogicCreater.c
+++ b/source/libs/planner/src/planLogicCreater.c
@@ -131,7 +131,7 @@ static int32_t createScanLogicNode(SLogicPlanContext* pCxt, SSelectStmt* pSelect
 
   TSWAP(pScan->pMeta, pRealTable->pMeta, STableMeta*);
   TSWAP(pScan->pVgroupList, pRealTable->pVgroupList, SVgroupsInfo*);
-  pScan->scanType = SCAN_TYPE_TABLE;
+  pScan->scanType = pCxt->pPlanCxt->streamQuery ? SCAN_TYPE_STREAM : SCAN_TYPE_TABLE;
   pScan->scanFlag = MAIN_SCAN;
   pScan->scanRange = TSWINDOW_INITIALIZER;  
   pScan->tableName.type = TSDB_TABLE_NAME_T;
diff --git a/source/libs/planner/src/planPhysiCreater.c b/source/libs/planner/src/planPhysiCreater.c
index 0affd93f4d..9bd926b676 100644
--- a/source/libs/planner/src/planPhysiCreater.c
+++ b/source/libs/planner/src/planPhysiCreater.c
@@ -259,15 +259,21 @@ static SPhysiNode* createTableScanPhysiNode(SPhysiPlanContext* pCxt, SSubplan* p
   return (SPhysiNode*)pTableScan;
 }
 
+static SPhysiNode* createStreamScanPhysiNode(SPhysiPlanContext* pCxt, SSubplan* pSubplan, SScanLogicNode* pScanLogicNode) {
+  SStreamScanPhysiNode* pTableScan = (SStreamScanPhysiNode*)makePhysiNode(pCxt, QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN);
+  CHECK_ALLOC(pTableScan, NULL);
+  CHECK_CODE(initScanPhysiNode(pCxt, pScanLogicNode, (SScanPhysiNode*)pTableScan), (SPhysiNode*)pTableScan);
+  return (SPhysiNode*)pTableScan;
+}
+
 static SPhysiNode* createScanPhysiNode(SPhysiPlanContext* pCxt, SSubplan* pSubplan, SScanLogicNode* pScanLogicNode) {
   switch (pScanLogicNode->scanType) {
     case SCAN_TYPE_TAG:
       return createTagScanPhysiNode(pCxt, pScanLogicNode);
     case SCAN_TYPE_TABLE:
       return createTableScanPhysiNode(pCxt, pSubplan, pScanLogicNode);
-    case SCAN_TYPE_STABLE:
     case SCAN_TYPE_STREAM:
-      break;
+      return createStreamScanPhysiNode(pCxt, pSubplan, pScanLogicNode);
     default:
       break;
   }
diff --git a/source/util/src/tjson.c b/source/util/src/tjson.c
index 0a4a1a07a6..a85da8cbbf 100644
--- a/source/util/src/tjson.c
+++ b/source/util/src/tjson.c
@@ -202,9 +202,16 @@ int32_t tjsonGetUBigIntValue(const SJson* pJson, const char* pName, uint64_t* pV
   return (errno == ERANGE||errno == EINVAL) ? TSDB_CODE_FAILED:TSDB_CODE_SUCCESS;
 }
 
+int32_t tjsonGetUIntValue(const SJson* pJson, const char* pName, uint32_t* pVal) {
+  uint64_t val = 0;
+  int32_t code = tjsonGetUBigIntValue(pJson, pName, &val);
+  *pVal = val;
+  return code;
+}
+
 int32_t tjsonGetUTinyIntValue(const SJson* pJson, const char* pName, uint8_t* pVal) {
   uint64_t val = 0;
-  int32_t  code = tjsonGetUBigIntValue(pJson, pName, &val);
+  int32_t code = tjsonGetUBigIntValue(pJson, pName, &val);
   *pVal = val;
   return code;
 }
@@ -239,6 +246,22 @@ int32_t tjsonToObject(const SJson* pJson, const char* pName, FToObject func, voi
   return func(pJsonObj, pObj);
 }
 
+int32_t tjsonMakeObject(const SJson* pJson, const char* pName, FToObject func, void** pObj, int32_t objSize) {
+  if (objSize <= 0) {
+    return TSDB_CODE_SUCCESS;
+  }
+
+  SJson* pJsonObj = tjsonGetObjectItem(pJson, pName);
+  if (NULL == pJsonObj) {
+    return TSDB_CODE_FAILED;
+  }
+  *pObj = calloc(1, objSize);
+  if (NULL == *pObj) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+  return func(pJsonObj, *pObj);
+}
+
 int32_t tjsonToArray(const SJson* pJson, const char* pName, FToObject func, void* pArray, int32_t itemSize) {
   const cJSON* jArray = tjsonGetObjectItem(pJson, pName);
   int32_t size = (NULL == jArray ? 0 : tjsonGetArraySize(jArray));