diff --git a/source/libs/nodes/src/nodesCodeFuncs.c b/source/libs/nodes/src/nodesCodeFuncs.c
index dd0eac00c51947f2024e8f2d19031124ee86580c..f01aac7b5c11a394ceca326072f05735eba74e44 100644
--- a/source/libs/nodes/src/nodesCodeFuncs.c
+++ b/source/libs/nodes/src/nodesCodeFuncs.c
@@ -624,6 +624,38 @@ static int32_t jsonToSubplan(const SJson* pJson, void* pObj) {
   return code;
 }
 
+static const char* jkPlanQueryId = "QueryId";
+static const char* jkPlanNumOfSubplans = "NumOfSubplans";
+static const char* jkPlanSubplans = "Subplans";
+
+static int32_t planToJson(const void* pObj, SJson* pJson) {
+  const SQueryPlan* pNode = (const SQueryPlan*)pObj;
+
+  int32_t code = tjsonAddIntegerToObject(pJson, jkPlanQueryId, pNode->queryId);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonAddIntegerToObject(pJson, jkPlanNumOfSubplans, pNode->numOfSubplans);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = nodeListToJson(pJson, jkPlanSubplans, pNode->pSubplans);
+  }
+
+  return code;
+}
+
+static int32_t jsonToPlan(const SJson* pJson, void* pObj) {
+  SQueryPlan* pNode = (SQueryPlan*)pObj;
+
+  int32_t code = tjsonGetUBigIntValue(pJson, jkPlanQueryId, &pNode->queryId);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = tjsonGetIntValue(pJson, jkPlanNumOfSubplans, &pNode->numOfSubplans);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeList(pJson, jkPlanSubplans, &pNode->pSubplans);
+  }
+
+  return code;
+}
+
 static const char* jkAggLogicPlanGroupKeys = "GroupKeys";
 static const char* jkAggLogicPlanAggFuncs = "AggFuncs";
 
@@ -1023,6 +1055,31 @@ static int32_t groupingSetNodeToJson(const void* pObj, SJson* pJson) {
   return code;
 }
 
+static const char* jkNodeListDataType = "DataType";
+static const char* jkNodeListNodeList = "NodeList";
+
+static int32_t nodeListNodeToJson(const void* pObj, SJson* pJson) {
+  const SNodeListNode* pNode = (const SNodeListNode*)pObj;
+
+  int32_t code = tjsonAddObject(pJson, jkNodeListDataType, dataTypeToJson, &pNode->dataType);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = nodeListToJson(pJson, jkNodeListNodeList, pNode->pNodeList);
+  }
+
+  return code;
+}
+
+static int32_t jsonToNodeListNode(const SJson* pJson, void* pObj) {
+  SNodeListNode* pNode = (SNodeListNode*)pObj;
+
+  int32_t code = tjsonToObject(pJson, jkNodeListDataType, jsonToDataType, &pNode->dataType);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = jsonToNodeList(pJson, jkNodeListNodeList, &pNode->pNodeList);
+  }
+
+  return code;
+}
+
 static const char* jkTargetDataBlockId = "DataBlockId";
 static const char* jkTargetSlotId = "SlotId";
 static const char* jkTargetExpr = "Expr";
@@ -1193,7 +1250,9 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
     case QUERY_NODE_SESSION_WINDOW:
     case QUERY_NODE_INTERVAL_WINDOW:
     case QUERY_NODE_NODE_LIST:
+      return nodeListNodeToJson(pObj, pJson);
     case QUERY_NODE_FILL:
+      break;
     case QUERY_NODE_TARGET:
       return targetNodeToJson(pObj, pJson);
     case QUERY_NODE_RAW_EXPR:
@@ -1228,9 +1287,12 @@ static int32_t specificNodeToJson(const void* pObj, SJson* pJson) {
       return physiAggNodeToJson(pObj, pJson);
     case QUERY_NODE_PHYSICAL_SUBPLAN:
       return subplanToJson(pObj, pJson);
+    case QUERY_NODE_PHYSICAL_PLAN:
+      return planToJson(pObj, pJson);
     default:
       break;
   }
+  printf("================================ specificNodeToJson unknown node = %s\n", nodeName(nodeType(pObj)));
   return TSDB_CODE_SUCCESS;
 }
 
@@ -1257,7 +1319,8 @@ static int32_t jsonToSpecificNode(const SJson* pJson, void* pObj) {
     // case QUERY_NODE_STATE_WINDOW:
     // case QUERY_NODE_SESSION_WINDOW:
     // case QUERY_NODE_INTERVAL_WINDOW:
-    // case QUERY_NODE_NODE_LIST:
+    case QUERY_NODE_NODE_LIST:
+      return jsonToNodeListNode(pJson, pObj);
     // case QUERY_NODE_FILL:
     case QUERY_NODE_TARGET:
       return jsonToTargetNode(pJson, pObj);
@@ -1293,6 +1356,8 @@ static int32_t jsonToSpecificNode(const SJson* pJson, void* pObj) {
       return jsonToPhysiAggNode(pJson, pObj);
     case QUERY_NODE_PHYSICAL_SUBPLAN:
       return jsonToSubplan(pJson, pObj);
+    case QUERY_NODE_PHYSICAL_PLAN:
+      return jsonToPlan(pJson, pObj);
     default:
       break;
   }
diff --git a/source/libs/nodes/src/nodesUtilFuncs.c b/source/libs/nodes/src/nodesUtilFuncs.c
index ce68816f51ab5fc05e37d6ca68cb7a4de6925d84..7fffaa268c0e75d82219213ee047e358761a1a09 100644
--- a/source/libs/nodes/src/nodesUtilFuncs.c
+++ b/source/libs/nodes/src/nodesUtilFuncs.c
@@ -79,6 +79,10 @@ SNodeptr nodesMakeNode(ENodeType type) {
       return makeNode(type, sizeof(SAggLogicNode));
     case QUERY_NODE_LOGIC_PLAN_PROJECT:
       return makeNode(type, sizeof(SProjectLogicNode));
+    case QUERY_NODE_LOGIC_SUBPLAN:
+      return makeNode(type, sizeof(SSubLogicPlan));
+    case QUERY_NODE_LOGIC_PLAN:
+      return makeNode(type, sizeof(SQueryLogicPlan));
     case QUERY_NODE_TARGET:
       return makeNode(type, sizeof(STargetNode));
     case QUERY_NODE_DATABLOCK_DESC:
diff --git a/source/libs/planner/src/physicalPlan.c b/source/libs/planner/src/physicalPlan.c
index 050298501d0bcd79614ab0affb14d9d4b4d71296..de35b3f2c9d8eeffa42076b7ce08fbc49bfa7d16 100644
--- a/source/libs/planner/src/physicalPlan.c
+++ b/source/libs/planner/src/physicalPlan.c
@@ -13,486 +13,6 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-#if 0
-
-#include "plannerInt.h"
-#include "texception.h"
-#include "parser.h"
-
-#define STORE_CURRENT_SUBPLAN(cxt) SSubplan* _ = cxt->pCurrentSubplan
-#define RECOVERY_CURRENT_SUBPLAN(cxt) cxt->pCurrentSubplan = _
-
-typedef struct SPlanContext {
-  struct SCatalog* pCatalog;
-  struct SQueryDag* pDag;
-  SSubplan* pCurrentSubplan;
-  SSubplanId nextId;
-} SPlanContext;
-
-static const char* gOpName[] = {
-  "Unknown",
-#define INCLUDE_AS_NAME
-#include "plannerOp.h"
-#undef INCLUDE_AS_NAME
-};
-
-static void* validPointer(void* p) {
-  if (NULL == p) {
-    THROW(TSDB_CODE_TSC_OUT_OF_MEMORY);
-  }
-  return p;
-}
-
-const char* opTypeToOpName(int32_t type) {
-  return gOpName[type];
-}
-
-int32_t opNameToOpType(const char* name) {
-  for (int32_t i = 1; i < sizeof(gOpName) / sizeof(gOpName[0]); ++i) {
-    if (0 == strcmp(name, gOpName[i])) {
-      return i;
-    }
-  }
-  return OP_Unknown;
-}
-
-const char* dsinkTypeToDsinkName(int32_t type) {
-  switch (type) {
-    case DSINK_Dispatch:
-      return "Dispatch";
-    case DSINK_Insert:
-      return "Insert";
-    default:
-      break;
-  }
-  return "Unknown";
-}
-
-int32_t dsinkNameToDsinkType(const char* name) {
-  if (0 == strcmp(name, "Dispatch")) {
-    return DSINK_Dispatch;
-  } else if (0 == strcmp(name, "Insert")) {
-    return DSINK_Insert;
-  }
-  return DSINK_Unknown;
-}
-
-static bool copySchema(SDataBlockSchema* dst, const SDataBlockSchema* src) {
-  dst->pSchema = malloc(sizeof(SSlotSchema) * src->numOfCols);
-  if (NULL == dst->pSchema) {
-    return false;
-  }
-  memcpy(dst->pSchema, src->pSchema, sizeof(SSlotSchema) * src->numOfCols);
-  dst->numOfCols = src->numOfCols;
-  dst->resultRowSize = src->resultRowSize;
-  dst->precision = src->precision;
-  return true;
-}
-
-static bool toDataBlockSchema(SQueryPlanNode* pPlanNode, SDataBlockSchema* dataBlockSchema) {
-  dataBlockSchema->numOfCols = pPlanNode->numOfExpr;
-  dataBlockSchema->pSchema = malloc(sizeof(SSlotSchema) * pPlanNode->numOfExpr);
-  if (NULL == dataBlockSchema->pSchema) {
-    return false;
-  }
-
-  dataBlockSchema->resultRowSize = 0;
-  for (int32_t i = 0; i < pPlanNode->numOfExpr; ++i) {
-    SExprInfo* pExprInfo = taosArrayGetP(pPlanNode->pExpr, i);
-    memcpy(&dataBlockSchema->pSchema[i], &pExprInfo->base.resSchema, sizeof(SSlotSchema));
-
-    dataBlockSchema->resultRowSize += dataBlockSchema->pSchema[i].bytes;
-  }
-
-  return true;
-}
-
-static bool cloneExprArray(SArray** dst, SArray* src) {
-  if (NULL == src) {
-    return true;
-  }
-  size_t size = taosArrayGetSize(src);
-  if (0 == size) {
-    return true;
-  }
-  *dst = taosArrayInit(size, POINTER_BYTES);
-  if (NULL == *dst) {
-    return false;
-  }
-  return (TSDB_CODE_SUCCESS == copyAllExprInfo(*dst, src, true) ? true : false);
-}
-
-static SDataSink* initDataSink(int32_t type, int32_t size, const SPhyNode* pRoot) {
-  SDataSink* sink = (SDataSink*)validPointer(calloc(1, size));
-  sink->info.type = type;
-  sink->info.name = dsinkTypeToDsinkName(type);
-  if (NULL !=pRoot && !copySchema(&sink->schema, &pRoot->targetSchema)) {
-    tfree(sink);
-    THROW(TSDB_CODE_TSC_OUT_OF_MEMORY);
-  }
-  return sink;
-}
-
-static SDataSink* createDataInserter(SPlanContext* pCxt, SVgDataBlocks* pBlocks, const SPhyNode* pRoot) {
-  SDataInserter* inserter = (SDataInserter*)initDataSink(DSINK_Insert, sizeof(SDataInserter), pRoot);
-  inserter->numOfTables = pBlocks->numOfTables;
-  inserter->size = pBlocks->size;
-  TSWAP(inserter->pData, pBlocks->pData, char*);
-  return (SDataSink*)inserter;
-}
-
-static SDataSink* createDataDispatcher(SPlanContext* pCxt, SQueryPlanNode* pPlanNode, const SPhyNode* pRoot) {
-  SDataDispatcher* dispatcher = (SDataDispatcher*)initDataSink(DSINK_Dispatch, sizeof(SDataDispatcher), pRoot);
-  return (SDataSink*)dispatcher;
-}
-
-static SPhyNode* initPhyNode(SQueryPlanNode* pPlanNode, int32_t type, int32_t size) {
-  SPhyNode* node = (SPhyNode*)validPointer(calloc(1, size));
-  node->info.type = type;
-  node->info.name = opTypeToOpName(type);
-  if (!cloneExprArray(&node->pTargets, pPlanNode->pExpr) || !toDataBlockSchema(pPlanNode, &(node->targetSchema))) {
-    free(node);
-    THROW(TSDB_CODE_TSC_OUT_OF_MEMORY);
-  }
-  return node;
-}
-
-static void cleanupPhyNode(SPhyNode* pPhyNode) {
-  if (pPhyNode == NULL) {
-    return;
-  }
-
-  dropOneLevelExprInfo(pPhyNode->pTargets);
-  tfree(pPhyNode->targetSchema.pSchema);
-  tfree(pPhyNode);
-}
-
-static SPhyNode* initScanNode(SQueryPlanNode* pPlanNode, SQueryTableInfo* pTable, int32_t type, int32_t size) {
-  SScanPhyNode* node = (SScanPhyNode*) initPhyNode(pPlanNode, type, size);
-
-  STableMeta *pTableMeta = pTable->pMeta->pTableMeta;
-  node->uid       = pTableMeta->uid;
-  node->count     = 1;
-  node->order     = TSDB_ORDER_ASC;
-  node->tableType = pTableMeta->tableType;
-
-  return (SPhyNode*)node;
-}
-
-static SPhyNode* createPseudoScanNode(SQueryPlanNode* pPlanNode, SQueryTableInfo* pTable, int32_t op) {
-  return initScanNode(pPlanNode, pTable, op, sizeof(SScanPhyNode));
-}
-
-static SPhyNode* createTagScanNode(SQueryPlanNode* pPlanNode) {
-  SQueryTableInfo* pTable = (SQueryTableInfo*)pPlanNode->pExtInfo;
-  return createPseudoScanNode(pPlanNode, pTable, OP_TagScan);
-}
-
-static uint8_t getScanFlag(SQueryPlanNode* pPlanNode, SQueryTableInfo* pTable) {
-  // todo
-  return MAIN_SCAN;
-}
-
-static SPhyNode* createUserTableScanNode(SQueryPlanNode* pPlanNode, SQueryTableInfo* pQueryTableInfo, int32_t op) {
-  STableScanPhyNode* node = (STableScanPhyNode*)initScanNode(pPlanNode, pQueryTableInfo, op, sizeof(STableScanPhyNode));
-  node->scanFlag = getScanFlag(pPlanNode, pQueryTableInfo);
-  node->window = pQueryTableInfo->window;
-  // todo tag cond
-  return (SPhyNode*)node;
-}
-
-
-static bool isSystemTable(SQueryTableInfo* pTable) {
-  // todo
-  return false;
-}
-
-static bool needSeqScan(SQueryPlanNode* pPlanNode) {
-  // todo
-  return false;
-}
-
-static SPhyNode* createMultiTableScanNode(SQueryPlanNode* pPlanNode, SQueryTableInfo* pTable) {
-  if (isSystemTable(pTable)) {
-    return createPseudoScanNode(pPlanNode, pTable, OP_SystemTableScan);
-  } else if (needSeqScan(pPlanNode)) {
-    return createUserTableScanNode(pPlanNode, pTable, OP_TableSeqScan);
-  }
-  int32_t type = (pPlanNode->info.type == QNODE_TABLESCAN)? OP_TableScan:OP_StreamScan;
-  return createUserTableScanNode(pPlanNode, pTable, type);
-}
-
-static SSubplan* initSubplan(SPlanContext* pCxt, int32_t type) {
-  SSubplan* subplan = validPointer(calloc(1, sizeof(SSubplan)));
-  subplan->id = pCxt->nextId;
-  ++(pCxt->nextId.subplanId);
-
-  subplan->type  = type;
-  subplan->level = 0;
-  if (NULL != pCxt->pCurrentSubplan) {
-    subplan->level = pCxt->pCurrentSubplan->level + 1;
-    if (NULL == pCxt->pCurrentSubplan->pChildren) {
-      pCxt->pCurrentSubplan->pChildren = validPointer(taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES));
-    }
-
-    taosArrayPush(pCxt->pCurrentSubplan->pChildren, &subplan);
-    subplan->pParents = validPointer(taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES));
-    taosArrayPush(subplan->pParents, &pCxt->pCurrentSubplan);
-  }
-
-  SArray* currentLevel;
-  if (subplan->level >= taosArrayGetSize(pCxt->pDag->pSubplans)) {
-    currentLevel = validPointer(taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES));
-    taosArrayPush(pCxt->pDag->pSubplans, &currentLevel);
-  } else {
-    currentLevel = taosArrayGetP(pCxt->pDag->pSubplans, subplan->level);
-  }
-
-  taosArrayPush(currentLevel, &subplan);
-  pCxt->pCurrentSubplan = subplan;
-  ++(pCxt->pDag->numOfSubplans);
-  return subplan;
-}
-
-static void vgroupInfoToNodeAddr(const SVgroupInfo* vg, SQueryNodeAddr* pNodeAddr) {
-  pNodeAddr->nodeId = vg->vgId;
-  pNodeAddr->epset  = vg->epset;
-}
-
-static uint64_t splitSubplanByTable(SPlanContext* pCxt, SQueryPlanNode* pPlanNode, SQueryTableInfo* pTableInfo) {
-  SVgroupsInfo* pVgroupList = pTableInfo->pMeta->vgroupList;
-  for (int32_t i = 0; i < pVgroupList->numOfVgroups; ++i) {
-    STORE_CURRENT_SUBPLAN(pCxt);
-    SSubplan* subplan = initSubplan(pCxt, QUERY_TYPE_SCAN);
-    subplan->msgType   = TDMT_VND_QUERY;
-
-    vgroupInfoToNodeAddr(&(pTableInfo->pMeta->vgroupList->vgroups[i]), &subplan->execNode);
-    subplan->pNode = createMultiTableScanNode(pPlanNode, pTableInfo);
-    subplan->pDataSink = createDataDispatcher(pCxt, pPlanNode, subplan->pNode);
-    RECOVERY_CURRENT_SUBPLAN(pCxt);
-  }
-  return pCxt->nextId.templateId++;
-}
-
-static SPhyNode* createExchangeNode(SPlanContext* pCxt, SQueryPlanNode* pPlanNode, uint64_t srcTemplateId) {
-  SExchangePhyNode* node = (SExchangePhyNode*)initPhyNode(pPlanNode, OP_Exchange, sizeof(SExchangePhyNode));
-  node->srcTemplateId = srcTemplateId;
-  node->pSrcEndPoints = validPointer(taosArrayInit(TARRAY_MIN_SIZE, sizeof(SDownstreamSource)));
-  return (SPhyNode*)node;
-}
-
-static bool needMultiNodeScan(SQueryTableInfo* pTable) {
-  // todo system table, for instance, user_tables
-  return (TSDB_SUPER_TABLE == pTable->pMeta->pTableMeta->tableType);
-}
-
-// TODO: the SVgroupInfo index
-static SPhyNode* createSingleTableScanNode(SQueryPlanNode* pPlanNode, SQueryTableInfo* pTableInfo, SSubplan* subplan) {
-  SVgroupsInfo* pVgroupsInfo = pTableInfo->pMeta->vgroupList;
-  vgroupInfoToNodeAddr(&(pVgroupsInfo->vgroups[0]), &subplan->execNode);
-  int32_t type = (pPlanNode->info.type == QNODE_TABLESCAN)? OP_TableScan:OP_StreamScan;
-  return createUserTableScanNode(pPlanNode, pTableInfo, type);
-}
-
-static SPhyNode* createTableScanNode(SPlanContext* pCxt, SQueryPlanNode* pPlanNode) {
-  SQueryTableInfo* pTable = (SQueryTableInfo*)pPlanNode->pExtInfo;
-  if (needMultiNodeScan(pTable)) {
-    return createExchangeNode(pCxt, pPlanNode, splitSubplanByTable(pCxt, pPlanNode, pTable));
-  }
-
-  return createSingleTableScanNode(pPlanNode, pTable, pCxt->pCurrentSubplan);
-}
-
-static SPhyNode* createSingleTableAgg(SPlanContext* pCxt, SQueryPlanNode* pPlanNode) {
-  SAggPhyNode* node = (SAggPhyNode*)initPhyNode(pPlanNode, OP_Aggregate, sizeof(SAggPhyNode));
-  SGroupbyExpr* pGroupBy = (SGroupbyExpr*)pPlanNode->pExtInfo;
-  node->aggAlgo = AGG_ALGO_PLAIN;
-  node->aggSplit = AGG_SPLIT_FINAL;
-  if (NULL != pGroupBy) {
-    node->aggAlgo = AGG_ALGO_HASHED;
-    node->pGroupByList = validPointer(taosArrayDup(pGroupBy->columnInfo));
-  }
-  return (SPhyNode*)node;
-}
-
-static SPhyNode* createAggNode(SPlanContext* pCxt, SQueryPlanNode* pPlanNode) {
-  // if (needMultiNodeAgg(pPlanNode)) {
-
-  // }
-  return createSingleTableAgg(pCxt, pPlanNode);
-}
-
-static SPhyNode* createPhyNode(SPlanContext* pCxt, SQueryPlanNode* pPlanNode) {
-  SPhyNode* node = NULL;
-  switch (pPlanNode->info.type) {
-    case QNODE_TAGSCAN:
-      node = createTagScanNode(pPlanNode);
-      break;
-    case QNODE_STREAMSCAN:
-    case QNODE_TABLESCAN:
-      node = createTableScanNode(pCxt, pPlanNode);
-      break;
-    case QNODE_AGGREGATE:
-    case QNODE_GROUPBY:
-      node = createAggNode(pCxt, pPlanNode);
-      break;
-    case QNODE_MODIFY:
-      // Insert is not an operator in a physical plan.
-      break;
-    default:
-      assert(false);
-  }
-
-  if (pPlanNode->pChildren != NULL && taosArrayGetSize(pPlanNode->pChildren) > 0) {
-    node->pChildren = taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES);
-    size_t size = taosArrayGetSize(pPlanNode->pChildren);
-    for(int32_t i = 0; i < size; ++i) {
-      SPhyNode* child = createPhyNode(pCxt, taosArrayGetP(pPlanNode->pChildren, i));
-      child->pParent = node;
-      taosArrayPush(node->pChildren, &child);
-    }
-  }
-
-  return node;
-}
-
-static void splitModificationOpSubPlan(SPlanContext* pCxt, SQueryPlanNode* pPlanNode) {
-  SDataPayloadInfo* pPayload = (SDataPayloadInfo*) pPlanNode->pExtInfo;
-
-  size_t numOfVgroups = taosArrayGetSize(pPayload->payload);
-  for (int32_t i = 0; i < numOfVgroups; ++i) {
-    STORE_CURRENT_SUBPLAN(pCxt);
-    SSubplan* subplan = initSubplan(pCxt, QUERY_TYPE_MODIFY);
-    SVgDataBlocks* blocks = (SVgDataBlocks*)taosArrayGetP(pPayload->payload, i);
-
-    subplan->execNode.epset = blocks->vg.epset;
-    subplan->pDataSink  = createDataInserter(pCxt, blocks, NULL);
-    subplan->pNode      = NULL;
-    subplan->type       = QUERY_TYPE_MODIFY;
-    subplan->msgType    = pPayload->msgType;
-    subplan->id.queryId = pCxt->pDag->queryId;
-
-    RECOVERY_CURRENT_SUBPLAN(pCxt);
-  }
-}
-
-static void createSubplanByLevel(SPlanContext* pCxt, SQueryPlanNode* pRoot) {
-  if (QNODE_MODIFY == pRoot->info.type) {
-    splitModificationOpSubPlan(pCxt, pRoot);
-  } else {
-    SSubplan* subplan  = initSubplan(pCxt, QUERY_TYPE_SCAN);
-    ++(pCxt->nextId.templateId);
-
-    subplan->msgType   = TDMT_VND_QUERY;
-    subplan->pNode     = createPhyNode(pCxt, pRoot);
-    subplan->pDataSink = createDataDispatcher(pCxt, pRoot, subplan->pNode);
-  }
-  // todo deal subquery
-}
-
-static void postCreateDag(SQueryPlanNode* pQueryNode, SQueryDag* pDag, SArray* pNodeList) {
-  // The exchange operator is not necessary, in case of the stream scan.
-  // Here we need to remove it from the DAG.
-  if (pQueryNode->info.type == QNODE_STREAMSCAN) {
-    SArray* pRootLevel = taosArrayGetP(pDag->pSubplans, 0);
-    SSubplan *pSubplan = taosArrayGetP(pRootLevel, 0);
-
-    if (pSubplan->pNode->info.type == OP_Exchange) {
-      ASSERT(taosArrayGetSize(pRootLevel) == 1);
-
-      taosArrayRemove(pDag->pSubplans, 0);
-      // And then update the number of the subplans.
-      pDag->numOfSubplans -= 1;
-    }
-  } else {
-    // Traverse the dag again to acquire the execution node.
-    if (pNodeList != NULL) {
-      SArray** pSubLevel = taosArrayGetLast(pDag->pSubplans);
-      size_t   num = taosArrayGetSize(*pSubLevel);
-      for (int32_t j = 0; j < num; ++j) {
-        SSubplan* pPlan = taosArrayGetP(*pSubLevel, j);
-        taosArrayPush(pNodeList, &pPlan->execNode);
-      }
-    }
-  }
-}
-
-int32_t createDag(SQueryPlanNode* pQueryNode, struct SCatalog* pCatalog, SQueryDag** pDag, SArray* pNodeList, uint64_t requestId) {
-  TRY(TSDB_MAX_TAG_CONDITIONS) {
-    SPlanContext context = {
-      .pCatalog = pCatalog,
-      .pDag     = validPointer(calloc(1, sizeof(SQueryDag))),
-      .pCurrentSubplan = NULL,
-       //The unsigned Id starting from 1 would be better
-      .nextId   = {.queryId = requestId, .subplanId = 1, .templateId = 1},
-    };
-
-    *pDag = context.pDag;
-    context.pDag->queryId = requestId;
-
-    context.pDag->pSubplans = validPointer(taosArrayInit(TARRAY_MIN_SIZE, POINTER_BYTES));
-    createSubplanByLevel(&context, pQueryNode);
-  } CATCH(code) {
-    CLEANUP_EXECUTE();
-    terrno = code;
-    return TSDB_CODE_FAILED;
-  } END_TRY
-
-  postCreateDag(pQueryNode, *pDag, pNodeList);
-  return TSDB_CODE_SUCCESS;
-}
-
-void setExchangSourceNode(uint64_t templateId, SDownstreamSource *pSource, SPhyNode* pNode) {
-  if (NULL == pNode) {
-    return;
-  }
-  if (OP_Exchange == pNode->info.type) {
-    SExchangePhyNode* pExchange = (SExchangePhyNode*)pNode;
-    if (templateId == pExchange->srcTemplateId) {
-      taosArrayPush(pExchange->pSrcEndPoints, pSource);
-    }
-  }
-
-  if (pNode->pChildren != NULL) {
-    size_t size = taosArrayGetSize(pNode->pChildren);
-    for(int32_t i = 0; i < size; ++i) {
-      setExchangSourceNode(templateId, pSource, taosArrayGetP(pNode->pChildren, i));
-    }
-  }
-}
-
-void setSubplanExecutionNode(SSubplan* subplan, uint64_t templateId, SDownstreamSource* pSource) {
-  setExchangSourceNode(templateId, pSource, subplan->pNode);
-}
-
-static void destroyDataSinkNode(SDataSink* pSinkNode) {
-  if (pSinkNode == NULL) {
-    return;
-  }
-
-  if (queryNodeType(pSinkNode) == DSINK_Dispatch) {
-    SDataDispatcher* pDdSink = (SDataDispatcher*)pSinkNode;
-    tfree(pDdSink->sink.schema.pSchema);
-  }
-
-  tfree(pSinkNode);
-}
-
-void qDestroySubplan(SSubplan* pSubplan) {
-  if (pSubplan == NULL) {
-    return;
-  }
-
-  taosArrayDestroy(pSubplan->pChildren);
-  taosArrayDestroy(pSubplan->pParents);
-  destroyDataSinkNode(pSubplan->pDataSink);
-  cleanupPhyNode(pSubplan->pNode);
-
-  tfree(pSubplan);
-}
-
-#endif
-
 #include "plannerInt.h"
 
 #include "functionMgt.h"
@@ -948,6 +468,7 @@ static SPhysiNode* createPhysiNode(SPhysiPlanContext* pCxt, SLogicNode* pLogicPl
 
 static SSubplan* createPhysiSubplan(SPhysiPlanContext* pCxt, SSubLogicPlan* pLogicSubplan) {
   SSubplan* pSubplan = (SSubplan*)nodesMakeNode(QUERY_NODE_PHYSICAL_SUBPLAN);
+  CHECK_ALLOC(pSubplan, NULL);
   pSubplan->pNode = createPhysiNode(pCxt, pLogicSubplan->pNode);
   return pSubplan;
 }
@@ -976,7 +497,7 @@ static SQueryLogicPlan* createRawQueryLogicPlan(SPhysiPlanContext* pCxt, SLogicN
   SSubLogicPlan* pSubplan = (SSubLogicPlan*)nodesMakeNode(QUERY_NODE_LOGIC_SUBPLAN);
   CHECK_ALLOC(pSubplan, pLogicPlan);
   CHECK_CODE(strictListAppend(pTopSubplans->pNodeList, pSubplan), pLogicPlan);
-  pSubplan->pNode = (SLogicNode*)nodesCloneNode((SNode*)pLogicNode);
+  pSubplan->pNode = pLogicNode;
   CHECK_ALLOC(pSubplan->pNode, pLogicPlan);
   return pLogicPlan;
 }
@@ -1005,6 +526,8 @@ static int32_t buildPhysiPlan(SPhysiPlanContext* pCxt, SQueryLogicPlan* pLogicPl
     SNodeListNode* pLevelSubplans = (SNodeListNode*)nodesMakeNode(QUERY_NODE_NODE_LIST);
     CHECK_ALLOC(pLevelSubplans, TSDB_CODE_OUT_OF_MEMORY);
     CHECK_CODE(strictListAppend(pQueryPlan->pSubplans, pLevelSubplans), TSDB_CODE_OUT_OF_MEMORY);
+    pLevelSubplans->pNodeList = nodesMakeList();
+    CHECK_ALLOC(pLevelSubplans->pNodeList, TSDB_CODE_OUT_OF_MEMORY);
     SNode* pLogicSubplan;
     FOREACH(pLogicSubplan, ((SNodeListNode*)pNode)->pNodeList) {
       CHECK_CODE(strictListAppend(pLevelSubplans->pNodeList,
diff --git a/source/libs/planner/test/plannerTest.cpp b/source/libs/planner/test/plannerTest.cpp
index 950d3d28271459cbecf61e1c32422a9b8a892159..d5a2ebbafc47b5adc0ce1eb81428086dd43f9c0b 100644
--- a/source/libs/planner/test/plannerTest.cpp
+++ b/source/libs/planner/test/plannerTest.cpp
@@ -78,6 +78,14 @@ protected:
       }
       cout << "unformatted physical plan : " << endl;
       cout << toString((const SNode*)pPlan, false) << endl;
+      SNode* pNode;
+      FOREACH(pNode, pPlan->pSubplans) {
+        SNode* pSubplan;
+        FOREACH(pSubplan, ((SNodeListNode*)pNode)->pNodeList) {
+          cout << "unformatted physical subplan : " << endl;
+          cout << toString(pSubplan, false) << endl;
+        }
+      }
     }
 
     return true;