diff --git a/source/dnode/mnode/impl/src/mndScheduler.c b/source/dnode/mnode/impl/src/mndScheduler.c
index ac01890b9b..bf8e9ab4d1 100644
--- a/source/dnode/mnode/impl/src/mndScheduler.c
+++ b/source/dnode/mnode/impl/src/mndScheduler.c
@@ -363,7 +363,8 @@ static SSubplan* getAggSubPlan(const SQueryPlan* pPlan, int index){
 
 static int32_t addSourceTask(SMnode* pMnode, SSubplan* plan, SStreamObj* pStream,
                                                SEpSet* pEpset, int64_t nextWindowSkey) {
-  // create exec stream task, since only one level, the exec task is also the source task
+  addNewTaskList(pStream);
+
   void* pIter = NULL;
   SSdb* pSdb = pMnode->pSdb;
   while (1) {
diff --git a/source/dnode/mnode/impl/src/mndStream.c b/source/dnode/mnode/impl/src/mndStream.c
index e8d5dfd1f5..a495ccd28f 100644
--- a/source/dnode/mnode/impl/src/mndStream.c
+++ b/source/dnode/mnode/impl/src/mndStream.c
@@ -422,6 +422,7 @@ static int32_t mndBuildStreamObjFromCreateReq(SMnode *pMnode, SStreamObj *pObj,
   pCreate->sql = NULL;
   pCreate->ast = NULL;
 
+  qDebugL("ast:%s", pObj->ast);
   // deserialize ast
   if (nodesStringToNode(pObj->ast, &pAst) < 0) {
     goto FAIL;
diff --git a/source/dnode/mnode/impl/test/stream/streamPlanTest.cpp b/source/dnode/mnode/impl/test/stream/streamPlanTest.cpp
index d769ef674b..3adc8c9b32 100644
--- a/source/dnode/mnode/impl/test/stream/streamPlanTest.cpp
+++ b/source/dnode/mnode/impl/test/stream/streamPlanTest.cpp
@@ -34,7 +34,8 @@ int main(int argc, char **argv) {
 }
 
 TEST(testCase, plan_Test) {
-  char* ast = "{\"NodeType\":\"101\",\"Name\":\"SelectStmt\",\"SelectStmt\":{\"Distinct\":false,\"Projections\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_1\",\"UserAlias\":\"_wstart\",\"Name\":\"_wstart\",\"Id\":\"89\",\"Type\":\"3505\",\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_2\",\"UserAlias\":\"sum(voltage)\",\"Name\":\"sum\",\"Id\":\"1\",\"Type\":\"14\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"voltage\",\"UserAlias\":\"voltage\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"3\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"voltage\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"#expr_3\",\"UserAlias\":\"groupid\",\"Name\":\"_group_key\",\"Id\":\"96\",\"Type\":\"3754\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"#expr_3\",\"UserAlias\":\"groupid\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"5\",\"ProjId\":\"0\",\"ColType\":\"2\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"groupid\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}}],\"From\":{\"NodeType\":\"6\",\"Name\":\"RealTable\",\"RealTable\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"0\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"DbName\":\"test\",\"tableName\":\"meters\",\"tableAlias\":\"meters\",\"MetaSize\":\"475\",\"Meta\":{\"VgId\":\"0\",\"TableType\":\"1\",\"Uid\":\"6555383776122680534\",\"Suid\":\"6555383776122680534\",\"Sversion\":\"1\",\"Tversion\":\"1\",\"ComInfo\":{\"NumOfTags\":\"2\",\"Precision\":\"0\",\"NumOfColumns\":\"4\",\"RowSize\":\"20\"},\"ColSchemas\":[{\"Type\":\"9\",\"ColId\":\"1\",\"bytes\":\"8\",\"Name\":\"ts\"},{\"Type\":\"6\",\"ColId\":\"2\",\"bytes\":\"4\",\"Name\":\"current\"},{\"Type\":\"4\",\"ColId\":\"3\",\"bytes\":\"4\",\"Name\":\"voltage\"},{\"Type\":\"6\",\"ColId\":\"4\",\"bytes\":\"4\",\"Name\":\"phase\"},{\"Type\":\"4\",\"ColId\":\"5\",\"bytes\":\"4\",\"Name\":\"groupid\"},{\"Type\":\"8\",\"ColId\":\"6\",\"bytes\":\"26\",\"Name\":\"location\"}]},\"VgroupsInfoSize\":\"1340\",\"VgroupsInfo\":{\"Num\":\"2\",\"Vgroups\":[{\"VgId\":\"2\",\"HashBegin\":\"0\",\"HashEnd\":\"2147483646\",\"EpSet\":{\"InUse\":\"0\",\"NumOfEps\":\"1\",\"Eps\":[{\"Fqdn\":\"localhost\",\"Port\":\"6030\"}]},\"NumOfTable\":\"0\"},{\"VgId\":\"3\",\"HashBegin\":\"2147483647\",\"HashEnd\":\"4294967295\",\"EpSet\":{\"InUse\":\"0\",\"NumOfEps\":\"1\",\"Eps\":[{\"Fqdn\":\"localhost\",\"Port\":\"6030\"}]},\"NumOfTable\":\"0\"}]}}},\"PartitionBy\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"groupid\",\"UserAlias\":\"groupid\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"5\",\"ProjId\":\"0\",\"ColType\":\"2\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"groupid\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"Window\":{\"NodeType\":\"14\",\"Name\":\"IntervalWindow\",\"IntervalWindow\":{\"Interval\":{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"115\",\"Bytes\":\"8\"},\"AliasName\":\"c804c3a15ebe05b5baf40ad5ee12be1f\",\"UserAlias\":\"2s\",\"LiteralSize\":\"2\",\"Literal\":\"2s\",\"Duration\":true,\"Translate\":true,\"NotReserved\":false,\"IsNull\":false,\"Unit\":\"115\",\"Datum\":\"2000\"}},\"TsPk\":{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"ts\",\"UserAlias\":\"ts\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"1\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"ts\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}}},\"StmtName\":\"0x1580095ba\",\"HasAggFuncs\":true}}";
+//  char* ast = "{\"NodeType\":\"101\",\"Name\":\"SelectStmt\",\"SelectStmt\":{\"Distinct\":false,\"Projections\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_1\",\"UserAlias\":\"_wstart\",\"Name\":\"_wstart\",\"Id\":\"89\",\"Type\":\"3505\",\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_2\",\"UserAlias\":\"sum(voltage)\",\"Name\":\"sum\",\"Id\":\"1\",\"Type\":\"14\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"voltage\",\"UserAlias\":\"voltage\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"3\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"voltage\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"#expr_3\",\"UserAlias\":\"groupid\",\"Name\":\"_group_key\",\"Id\":\"96\",\"Type\":\"3754\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"#expr_3\",\"UserAlias\":\"groupid\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"5\",\"ProjId\":\"0\",\"ColType\":\"2\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"groupid\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}}],\"From\":{\"NodeType\":\"6\",\"Name\":\"RealTable\",\"RealTable\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"0\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"DbName\":\"test\",\"tableName\":\"meters\",\"tableAlias\":\"meters\",\"MetaSize\":\"475\",\"Meta\":{\"VgId\":\"0\",\"TableType\":\"1\",\"Uid\":\"6555383776122680534\",\"Suid\":\"6555383776122680534\",\"Sversion\":\"1\",\"Tversion\":\"1\",\"ComInfo\":{\"NumOfTags\":\"2\",\"Precision\":\"0\",\"NumOfColumns\":\"4\",\"RowSize\":\"20\"},\"ColSchemas\":[{\"Type\":\"9\",\"ColId\":\"1\",\"bytes\":\"8\",\"Name\":\"ts\"},{\"Type\":\"6\",\"ColId\":\"2\",\"bytes\":\"4\",\"Name\":\"current\"},{\"Type\":\"4\",\"ColId\":\"3\",\"bytes\":\"4\",\"Name\":\"voltage\"},{\"Type\":\"6\",\"ColId\":\"4\",\"bytes\":\"4\",\"Name\":\"phase\"},{\"Type\":\"4\",\"ColId\":\"5\",\"bytes\":\"4\",\"Name\":\"groupid\"},{\"Type\":\"8\",\"ColId\":\"6\",\"bytes\":\"26\",\"Name\":\"location\"}]},\"VgroupsInfoSize\":\"1340\",\"VgroupsInfo\":{\"Num\":\"2\",\"Vgroups\":[{\"VgId\":\"2\",\"HashBegin\":\"0\",\"HashEnd\":\"2147483646\",\"EpSet\":{\"InUse\":\"0\",\"NumOfEps\":\"1\",\"Eps\":[{\"Fqdn\":\"localhost\",\"Port\":\"6030\"}]},\"NumOfTable\":\"0\"},{\"VgId\":\"3\",\"HashBegin\":\"2147483647\",\"HashEnd\":\"4294967295\",\"EpSet\":{\"InUse\":\"0\",\"NumOfEps\":\"1\",\"Eps\":[{\"Fqdn\":\"localhost\",\"Port\":\"6030\"}]},\"NumOfTable\":\"0\"}]}}},\"PartitionBy\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"groupid\",\"UserAlias\":\"groupid\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"5\",\"ProjId\":\"0\",\"ColType\":\"2\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"groupid\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"Window\":{\"NodeType\":\"14\",\"Name\":\"IntervalWindow\",\"IntervalWindow\":{\"Interval\":{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"115\",\"Bytes\":\"8\"},\"AliasName\":\"c804c3a15ebe05b5baf40ad5ee12be1f\",\"UserAlias\":\"2s\",\"LiteralSize\":\"2\",\"Literal\":\"2s\",\"Duration\":true,\"Translate\":true,\"NotReserved\":false,\"IsNull\":false,\"Unit\":\"115\",\"Datum\":\"2000\"}},\"TsPk\":{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"ts\",\"UserAlias\":\"ts\",\"TableId\":\"6555383776122680534\",\"TableType\":\"1\",\"ColId\":\"1\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"meters\",\"TableAlias\":\"meters\",\"ColName\":\"ts\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}}},\"StmtName\":\"0x1580095ba\",\"HasAggFuncs\":true}}";
+  char* ast = "{\"NodeType\":\"101\",\"Name\":\"SelectStmt\",\"SelectStmt\":{\"Distinct\":false,\"Projections\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_1\",\"UserAlias\":\"wstart\",\"Name\":\"_wstart\",\"Id\":\"89\",\"Type\":\"3505\",\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"#expr_2\",\"UserAlias\":\"min(c1)\",\"Name\":\"min\",\"Id\":\"2\",\"Type\":\"8\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"c1\",\"UserAlias\":\"c1\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"2\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c1\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"3\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"2\"},\"AliasName\":\"#expr_3\",\"UserAlias\":\"max(c2)\",\"Name\":\"max\",\"Id\":\"3\",\"Type\":\"7\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"3\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"2\"},\"AliasName\":\"c2\",\"UserAlias\":\"c2\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"3\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c2\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_4\",\"UserAlias\":\"sum(c3)\",\"Name\":\"sum\",\"Id\":\"1\",\"Type\":\"14\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"4\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"c3\",\"UserAlias\":\"c3\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"4\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c3\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_5\",\"UserAlias\":\"first(c4)\",\"Name\":\"first\",\"Id\":\"33\",\"Type\":\"504\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"c4\",\"UserAlias\":\"c4\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"5\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c4\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}},{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"ts\",\"UserAlias\":\"ts\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"1\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"ts\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"11\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"#expr_6\",\"UserAlias\":\"last(c5)\",\"Name\":\"last\",\"Id\":\"36\",\"Type\":\"506\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"11\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"c5\",\"UserAlias\":\"c5\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"6\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c5\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}},{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"ts\",\"UserAlias\":\"ts\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"1\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"ts\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"12\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"2\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"7\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_7\",\"UserAlias\":\"apercentile(c6, 50)\",\"Name\":\"apercentile\",\"Id\":\"12\",\"Type\":\"1\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"12\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"2\"},\"AliasName\":\"c6\",\"UserAlias\":\"c6\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"7\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c6\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"c0c7c76d30bd3dcaefc96f40275bdc0a\",\"UserAlias\":\"50\",\"LiteralSize\":\"2\",\"Literal\":\"50\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"50\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"13\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"7\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_8\",\"UserAlias\":\"avg(c7)\",\"Name\":\"avg\",\"Id\":\"8\",\"Type\":\"2\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"13\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"c7\",\"UserAlias\":\"c7\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"8\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c7\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"14\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_9\",\"UserAlias\":\"count(c8)\",\"Name\":\"count\",\"Id\":\"0\",\"Type\":\"3\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"14\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"c8\",\"UserAlias\":\"c8\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"9\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c8\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"6\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"4\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"7\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_10\",\"UserAlias\":\"spread(c1)\",\"Name\":\"spread\",\"Id\":\"17\",\"Type\":\"11\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"c1\",\"UserAlias\":\"c1\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"2\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c1\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"7\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_11\",\"UserAlias\":\"stddev(c2)\",\"Name\":\"stddev\",\"Id\":\"4\",\"Type\":\"12\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"3\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"2\"},\"AliasName\":\"c2\",\"UserAlias\":\"c2\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"3\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c2\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"8\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_12\",\"UserAlias\":\"hyperloglog(c11)\",\"Name\":\"hyperloglog\",\"Id\":\"43\",\"Type\":\"17\",\"Parameters\":[{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"8\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"c11\",\"UserAlias\":\"c11\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"12\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"c11\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"10\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"26\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"#expr_13\",\"UserAlias\":\"timediff(1, 0, 1h)\",\"Name\":\"timediff\",\"Id\":\"81\",\"Type\":\"2501\",\"Parameters\":[{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"c4ca4238a0b923820dcc509a6f75849b\",\"UserAlias\":\"1\",\"LiteralSize\":\"1\",\"Literal\":\"1\",\"Duration\":false,\"Translate\":true,\"NotReserved\":false,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"1\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"cfcd208495d565ef66e7dff9f98764da\",\"UserAlias\":\"0\",\"LiteralSize\":\"1\",\"Literal\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":false,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"104\",\"Bytes\":\"8\"},\"AliasName\":\"7c68645d71b803bf0ba2f22519f73e08\",\"UserAlias\":\"1h\",\"LiteralSize\":\"2\",\"Literal\":\"1h\",\"Duration\":true,\"Translate\":true,\"NotReserved\":false,\"IsNull\":false,\"Unit\":\"104\",\"Datum\":\"3600000\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}},{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"1\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"Name\":\"cast\",\"Id\":\"77\",\"Type\":\"2000\",\"Parameters\":[{\"NodeType\":\"5\",\"Name\":\"Function\",\"Function\":{\"DataType\":{\"Type\":\"8\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"96\"},\"AliasName\":\"#expr_14\",\"UserAlias\":\"timezone()\",\"Name\":\"timezone\",\"Id\":\"84\",\"Type\":\"2503\",\"UdfBufSize\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"2\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":true,\"NotReserved\":true,\"IsNull\":false,\"Unit\":\"0\",\"Datum\":\"0\"}}],\"UdfBufSize\":\"0\"}}],\"From\":{\"NodeType\":\"6\",\"Name\":\"RealTable\",\"RealTable\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"0\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"DbName\":\"test\",\"tableName\":\"at_once_interval_ext_stb\",\"tableAlias\":\"at_once_interval_ext_stb\",\"MetaSize\":\"2008\",\"Meta\":{\"VgId\":\"0\",\"TableType\":\"1\",\"Uid\":\"5129202035162885657\",\"Suid\":\"5129202035162885657\",\"Sversion\":\"1\",\"Tversion\":\"1\",\"ComInfo\":{\"NumOfTags\":\"13\",\"Precision\":\"0\",\"NumOfColumns\":\"14\",\"RowSize\":\"85\"},\"ColSchemas\":[{\"Type\":\"9\",\"ColId\":\"1\",\"bytes\":\"8\",\"Name\":\"ts\"},{\"Type\":\"2\",\"ColId\":\"2\",\"bytes\":\"1\",\"Name\":\"c1\"},{\"Type\":\"3\",\"ColId\":\"3\",\"bytes\":\"2\",\"Name\":\"c2\"},{\"Type\":\"4\",\"ColId\":\"4\",\"bytes\":\"4\",\"Name\":\"c3\"},{\"Type\":\"5\",\"ColId\":\"5\",\"bytes\":\"8\",\"Name\":\"c4\"},{\"Type\":\"11\",\"ColId\":\"6\",\"bytes\":\"1\",\"Name\":\"c5\"},{\"Type\":\"12\",\"ColId\":\"7\",\"bytes\":\"2\",\"Name\":\"c6\"},{\"Type\":\"13\",\"ColId\":\"8\",\"bytes\":\"4\",\"Name\":\"c7\"},{\"Type\":\"14\",\"ColId\":\"9\",\"bytes\":\"8\",\"Name\":\"c8\"},{\"Type\":\"6\",\"ColId\":\"10\",\"bytes\":\"4\",\"Name\":\"c9\"},{\"Type\":\"7\",\"ColId\":\"11\",\"bytes\":\"8\",\"Name\":\"c10\"},{\"Type\":\"8\",\"ColId\":\"12\",\"bytes\":\"8\",\"Name\":\"c11\"},{\"Type\":\"10\",\"ColId\":\"13\",\"bytes\":\"26\",\"Name\":\"c12\"},{\"Type\":\"1\",\"ColId\":\"14\",\"bytes\":\"1\",\"Name\":\"c13\"},{\"Type\":\"2\",\"ColId\":\"15\",\"bytes\":\"1\",\"Name\":\"t1\"},{\"Type\":\"3\",\"ColId\":\"16\",\"bytes\":\"2\",\"Name\":\"t2\"},{\"Type\":\"4\",\"ColId\":\"17\",\"bytes\":\"4\",\"Name\":\"t3\"},{\"Type\":\"5\",\"ColId\":\"18\",\"bytes\":\"8\",\"Name\":\"t4\"},{\"Type\":\"11\",\"ColId\":\"19\",\"bytes\":\"1\",\"Name\":\"t5\"},{\"Type\":\"12\",\"ColId\":\"20\",\"bytes\":\"2\",\"Name\":\"t6\"},{\"Type\":\"13\",\"ColId\":\"21\",\"bytes\":\"4\",\"Name\":\"t7\"},{\"Type\":\"14\",\"ColId\":\"22\",\"bytes\":\"8\",\"Name\":\"t8\"},{\"Type\":\"6\",\"ColId\":\"23\",\"bytes\":\"4\",\"Name\":\"t9\"},{\"Type\":\"7\",\"ColId\":\"24\",\"bytes\":\"8\",\"Name\":\"t10\"},{\"Type\":\"8\",\"ColId\":\"25\",\"bytes\":\"8\",\"Name\":\"t11\"},{\"Type\":\"10\",\"ColId\":\"26\",\"bytes\":\"26\",\"Name\":\"t12\"},{\"Type\":\"1\",\"ColId\":\"27\",\"bytes\":\"1\",\"Name\":\"t13\"}]},\"VgroupsInfoSize\":\"1340\",\"VgroupsInfo\":{\"Num\":\"2\",\"Vgroups\":[{\"VgId\":\"14\",\"HashBegin\":\"0\",\"HashEnd\":\"2147483646\",\"EpSet\":{\"InUse\":\"0\",\"NumOfEps\":\"1\",\"Eps\":[{\"Fqdn\":\"localhost\",\"Port\":\"6030\"}]},\"NumOfTable\":\"0\"},{\"VgId\":\"15\",\"HashBegin\":\"2147483647\",\"HashEnd\":\"4294967295\",\"EpSet\":{\"InUse\":\"0\",\"NumOfEps\":\"1\",\"Eps\":[{\"Fqdn\":\"localhost\",\"Port\":\"6030\"}]},\"NumOfTable\":\"0\"}]}}},\"Tags\":[{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}},{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"0\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"1\"},\"AliasName\":\"\",\"UserAlias\":\"\",\"LiteralSize\":\"0\",\"Duration\":false,\"Translate\":false,\"NotReserved\":false,\"IsNull\":true,\"Unit\":\"0\"}}],\"Window\":{\"NodeType\":\"14\",\"Name\":\"IntervalWindow\",\"IntervalWindow\":{\"Interval\":{\"NodeType\":\"2\",\"Name\":\"Value\",\"Value\":{\"DataType\":{\"Type\":\"5\",\"Precision\":\"0\",\"Scale\":\"115\",\"Bytes\":\"8\"},\"AliasName\":\"1fd7635317edfeca9054894ac9ef9b5e\",\"UserAlias\":\"14s\",\"LiteralSize\":\"3\",\"Literal\":\"14s\",\"Duration\":true,\"Translate\":true,\"NotReserved\":false,\"IsNull\":false,\"Unit\":\"115\",\"Datum\":\"14000\"}},\"TsPk\":{\"NodeType\":\"1\",\"Name\":\"Column\",\"Column\":{\"DataType\":{\"Type\":\"9\",\"Precision\":\"0\",\"Scale\":\"0\",\"Bytes\":\"8\"},\"AliasName\":\"ts\",\"UserAlias\":\"ts\",\"TableId\":\"5129202035162885657\",\"TableType\":\"1\",\"ColId\":\"1\",\"ProjId\":\"0\",\"ColType\":\"1\",\"DbName\":\"test\",\"TableName\":\"at_once_interval_ext_stb\",\"TableAlias\":\"at_once_interval_ext_stb\",\"ColName\":\"ts\",\"DataBlockId\":\"0\",\"SlotId\":\"0\"}}}},\"StmtName\":\"0x150146d14\",\"HasAggFuncs\":true}}";
   SNode *     pAst = NULL;
   SQueryPlan *pPlan = NULL;
 
diff --git a/source/libs/planner/src/planSpliter.c b/source/libs/planner/src/planSpliter.c
index 1f9c4bcae9..4cd7749b6a 100644
--- a/source/libs/planner/src/planSpliter.c
+++ b/source/libs/planner/src/planSpliter.c
@@ -488,6 +488,53 @@ static int32_t stbSplCreatePartWindowNode(SWindowLogicNode* pMergeWindow, SLogic
   return code;
 }
 
+static int32_t stbSplCreateSemiWindowNode(SWindowLogicNode* pMidWindow, SLogicNode** pSemiWindow) {
+  SNodeList* pFunc = pMidWindow->pFuncs;
+  pMidWindow->pFuncs = NULL;
+  nodesDestroyList(pMidWindow->node.pTargets);
+  pMidWindow->node.pTargets = NULL;
+  SNodeList* pChildren = pMidWindow->node.pChildren;
+  pMidWindow->node.pChildren = NULL;
+
+  SWindowLogicNode* pPartWin = (SWindowLogicNode*)nodesCloneNode((SNode*)pMidWindow);
+  if (NULL == pPartWin) {
+    return TSDB_CODE_OUT_OF_MEMORY;
+  }
+
+  pPartWin->node.pChildren = pChildren;
+  splSetParent((SLogicNode*)pPartWin);
+
+  int32_t index = 0;
+  int32_t code = stbSplRewriteFuns(pFunc, &pPartWin->pFuncs, &pMidWindow->pFuncs);
+  if (TSDB_CODE_SUCCESS == code) {
+    code = stbSplAppendWStart(pPartWin->pFuncs, &index, ((SColumnNode*)pMidWindow->pTspk)->node.resType.precision);
+  }
+  if (TSDB_CODE_SUCCESS == code) {
+    code = createColumnByRewriteExprs(pPartWin->pFuncs, &pPartWin->node.pTargets);
+  }
+
+  if (TSDB_CODE_SUCCESS == code) {
+    code = createColumnByRewriteExprs(pMidWindow->pFuncs, &pMidWindow->node.pTargets);
+  }
+
+  if (TSDB_CODE_SUCCESS == code) {
+    nodesDestroyNode(pMidWindow->pTspk);
+    pMidWindow->pTspk = nodesCloneNode(nodesListGetNode(pPartWin->node.pTargets, index));
+    if (NULL == pMidWindow->pTspk) {
+      code = TSDB_CODE_OUT_OF_MEMORY;
+    }
+  }
+
+  nodesDestroyList(pFunc);
+  if (TSDB_CODE_SUCCESS == code) {
+    *pSemiWindow = (SLogicNode*)pPartWin;
+  } else {
+    nodesDestroyNode((SNode*)pPartWin);
+  }
+
+  return code;
+}
+
 static int32_t stbSplGetNumOfVgroups(SLogicNode* pNode) {
   if (QUERY_NODE_LOGIC_PLAN_SCAN == nodeType(pNode)) {
     return ((SScanLogicNode*)pNode)->pVgroupList->numOfVgroups;
@@ -663,7 +710,7 @@ static int32_t stbSplSplitIntervalForStream(SSplitContext* pCxt, SStableSplitInf
   }
 
   if (TSDB_CODE_SUCCESS == code) {
-    code = stbSplCreatePartWindowNode((SWindowLogicNode*)pMidWindow, &pPartWindow);
+    code = stbSplCreateSemiWindowNode((SWindowLogicNode*)pMidWindow, &pPartWindow);
     if (TSDB_CODE_SUCCESS == code) {
       ((SWindowLogicNode*)pPartWindow)->windowAlgo = INTERVAL_ALGO_STREAM_SEMI;
       code = stbSplCreateExchangeNode(pCxt, pMidWindow, pPartWindow);