diff --git a/include/libs/function/function.h b/include/libs/function/function.h
index b359fa5d6a..54762a0f17 100644
--- a/include/libs/function/function.h
+++ b/include/libs/function/function.h
@@ -150,12 +150,8 @@ typedef struct SqlFunctionCtx {
 } SqlFunctionCtx;
 
 enum {
-  TEXPR_NODE_DUMMY     = 0x0,
   TEXPR_BINARYEXPR_NODE= 0x1,
   TEXPR_UNARYEXPR_NODE = 0x2,
-  TEXPR_FUNCTION_NODE  = 0x3,
-  TEXPR_COL_NODE       = 0x4,
-  TEXPR_VALUE_NODE     = 0x8,
 };
 
 typedef struct tExprNode {
diff --git a/source/libs/executor/inc/executil.h b/source/libs/executor/inc/executil.h
index ca25b7aab1..a70cff5552 100644
--- a/source/libs/executor/inc/executil.h
+++ b/source/libs/executor/inc/executil.h
@@ -55,7 +55,6 @@ typedef struct SResultRow {
   uint32_t      numOfRows;   // number of rows of current time window
   STimeWindow   win;
   struct SResultRowEntryInfo pEntryInfo[];  // For each result column, there is a resultInfo
-//  char         *key;       // start key of current result row
 } SResultRow;
 
 typedef struct SResultRowPosition {
diff --git a/source/libs/executor/inc/executorimpl.h b/source/libs/executor/inc/executorimpl.h
index e3e85bf2b8..49316ff746 100644
--- a/source/libs/executor/inc/executorimpl.h
+++ b/source/libs/executor/inc/executorimpl.h
@@ -540,6 +540,13 @@ typedef struct SFillOperatorInfo {
   bool              multigroupResult;
 } SFillOperatorInfo;
 
+typedef struct SScalarSupp {
+  SExprInfo*      pScalarExprInfo;
+  int32_t         numOfScalarExpr;  // the number of scalar expression in group operator
+  SqlFunctionCtx* pScalarFuncCtx;
+  int32_t*        rowCellInfoOffset;  // offset value for each row result cell info
+} SScalarSupp;
+
 typedef struct SGroupbyOperatorInfo {
   // SOptrBasicInfo should be first, SAggSupporter should be second for stream encode
   SOptrBasicInfo  binfo;
@@ -552,10 +559,7 @@ typedef struct SGroupbyOperatorInfo {
   char*           keyBuf;       // group by keys for hash
   int32_t         groupKeyLen;  // total group by column width
   SGroupResInfo   groupResInfo;
-  SExprInfo*      pScalarExprInfo;
-  int32_t         numOfScalarExpr;  // the number of scalar expression in group operator
-  SqlFunctionCtx* pScalarFuncCtx;
-  int32_t*        rowCellInfoOffset;  // offset value for each row result cell info
+  SScalarSupp     scalarSup;
 } SGroupbyOperatorInfo;
 
 typedef struct SDataGroupInfo {
@@ -578,6 +582,7 @@ typedef struct SPartitionOperatorInfo {
   int32_t*       columnOffset;  // start position for each column data
   void*          pGroupIter;  // group iterator
   int32_t        pageIndex;   // page index of current group
+  SScalarSupp    scalarSupp;
 } SPartitionOperatorInfo;
 
 typedef struct SWindowRowsSup {
@@ -755,6 +760,8 @@ void    getAlignQueryTimeWindow(SInterval* pInterval, int32_t precision, int64_t
 int32_t getTableScanInfo(SOperatorInfo* pOperator, int32_t *order, int32_t* scanFlag);
 int32_t getBufferPgSize(int32_t rowSize, uint32_t* defaultPgsz, uint32_t* defaultBufsz);
 
+SArray* extractPartitionColInfo(SNodeList* pNodeList);
+
 void    doSetOperatorCompleted(SOperatorInfo* pOperator);
 void    doFilter(const SNode* pFilterNode, SSDataBlock* pBlock);
 SqlFunctionCtx* createSqlFunctionCtx(SExprInfo* pExprInfo, int32_t numOfOutput, int32_t** rowCellInfoOffset);
@@ -834,20 +841,17 @@ SOperatorInfo* createFillOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExp
 SOperatorInfo* createStatewindowOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExpr, int32_t numOfCols,
                                              SSDataBlock* pResBlock, STimeWindowAggSupp *pTwAggSupp, int32_t tsSlotId, SColumn* pStateKeyCol, SExecTaskInfo* pTaskInfo);
 
-SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
-                                           SSDataBlock* pResultBlock, SArray* pGroupColList, SExecTaskInfo* pTaskInfo);
+SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SPartitionPhysiNode* pPartNode, SExecTaskInfo* pTaskInfo);
 
 SOperatorInfo* createTimeSliceOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
                                            SSDataBlock* pResultBlock, const SNodeListNode* pValNode, SExecTaskInfo* pTaskInfo);
 
 SOperatorInfo* createMergeJoinOperatorInfo(SOperatorInfo** pDownstream, int32_t numOfDownstream, SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResBlock, SNode* pOnCondition, SExecTaskInfo* pTaskInfo);
 
-SOperatorInfo* createStreamSessionAggOperatorInfo(SOperatorInfo* downstream,
-    SExprInfo* pExprInfo, int32_t numOfCols, SSDataBlock* pResBlock, int64_t gap,
-    int32_t tsSlotId, STimeWindowAggSupp* pTwAggSupp, SExecTaskInfo* pTaskInfo);
+SOperatorInfo* createStreamSessionAggOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
+    SSDataBlock* pResBlock, int64_t gap, int32_t tsSlotId, STimeWindowAggSupp* pTwAggSupp, SExecTaskInfo* pTaskInfo);
 
-SOperatorInfo* createStreamStateAggOperatorInfo(SOperatorInfo* downstream,
-    SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo);
+SOperatorInfo* createStreamStateAggOperatorInfo(SOperatorInfo* downstream, SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo);
 
 #if 0
 SOperatorInfo* createTableSeqScanOperatorInfo(void* pTsdbReadHandle, STaskRuntimeEnv* pRuntimeEnv);
diff --git a/source/libs/executor/src/executil.c b/source/libs/executor/src/executil.c
index 6ba1cf859e..01ed30c189 100644
--- a/source/libs/executor/src/executil.c
+++ b/source/libs/executor/src/executil.c
@@ -28,17 +28,6 @@ typedef struct SCompSupporter {
   int32_t           order;
 } SCompSupporter;
 
-int32_t getOutputInterResultBufSize(STaskAttr* pQueryAttr) {
-  int32_t size = 0;
-
-  for (int32_t i = 0; i < pQueryAttr->numOfOutput; ++i) {
-//    size += pQueryAttr->pExpr1[i].base.interBytes;
-  }
-
-  assert(size >= 0);
-  return size;
-}
-
 int32_t initResultRowInfo(SResultRowInfo *pResultRowInfo, int32_t size) {
   pResultRowInfo->size       = 0;
   pResultRowInfo->cur.pageId = -1;
diff --git a/source/libs/executor/src/executorimpl.c b/source/libs/executor/src/executorimpl.c
index de109a24ca..89692c0061 100644
--- a/source/libs/executor/src/executorimpl.c
+++ b/source/libs/executor/src/executorimpl.c
@@ -40,9 +40,6 @@
 #define IS_MAIN_SCAN(runtime)          ((runtime)->scanFlag == MAIN_SCAN)
 #define SET_REVERSE_SCAN_FLAG(runtime) ((runtime)->scanFlag = REVERSE_SCAN)
 
-#define SDATA_BLOCK_INITIALIZER \
-  (SDataBlockInfo) { {0}, 0 }
-
 #define GET_FORWARD_DIRECTION_FACTOR(ord) (((ord) == TSDB_ORDER_ASC) ? QUERY_ASC_FORWARD_STEP : QUERY_DESC_FORWARD_STEP)
 
 #if 0
@@ -95,8 +92,6 @@ static void setBlockStatisInfo(SqlFunctionCtx* pCtx, SExprInfo* pExpr, SSDataBlo
 
 static void destroyTableQueryInfoImpl(STableQueryInfo* pTableQueryInfo);
 
-static SColumnInfo* extractColumnFilterInfo(SExprInfo* pExpr, int32_t numOfOutput, int32_t* numOfFilterCols);
-
 static void releaseQueryBuf(size_t numOfTables);
 
 static void destroySFillOperatorInfo(void* param, int32_t numOfOutput);
@@ -454,75 +449,6 @@ static bool chkWindowOutputBufByKey(STaskRuntimeEnv* pRuntimeEnv, SResultRowInfo
   return chkResultRowFromKey(pRuntimeEnv, pResultRowInfo, (char*)&win->skey, TSDB_KEYSIZE, masterscan, groupId);
 }
 
-static void doUpdateResultRowIndex(SResultRowInfo* pResultRowInfo, TSKEY lastKey, bool ascQuery,
-                                   bool timeWindowInterpo) {
-  int64_t skey = TSKEY_INITIAL_VAL;
-#if 0
-  int32_t i = 0;
-  for (i = pResultRowInfo->size - 1; i >= 0; --i) {
-    SResultRow* pResult = pResultRowInfo->pResult[i];
-    if (pResult->closed) {
-      break;
-    }
-
-    // new closed result rows
-    if (timeWindowInterpo) {
-      if (pResult->endInterp &&
-          ((pResult->win.skey <= lastKey && ascQuery) || (pResult->win.skey >= lastKey && !ascQuery))) {
-        if (i > 0) {  // the first time window, the startInterp is false.
-          assert(pResult->startInterp);
-        }
-
-        closeResultRow(pResultRowInfo, i);
-      } else {
-        skey = pResult->win.skey;
-      }
-    } else {
-      if ((pResult->win.ekey <= lastKey && ascQuery) || (pResult->win.skey >= lastKey && !ascQuery)) {
-        closeResultRow(pResultRowInfo, i);
-      } else {
-        skey = pResult->win.skey;
-      }
-    }
-  }
-
-  // all result rows are closed, set the last one to be the skey
-  if (skey == TSKEY_INITIAL_VAL) {
-    if (pResultRowInfo->size == 0) {
-      //      assert(pResultRowInfo->current == NULL);
-      assert(pResultRowInfo->curPos == -1);
-      pResultRowInfo->curPos = -1;
-    } else {
-      pResultRowInfo->curPos = pResultRowInfo->size - 1;
-    }
-  } else {
-    for (i = pResultRowInfo->size - 1; i >= 0; --i) {
-      SResultRow* pResult = pResultRowInfo->pResult[i];
-      if (pResult->closed) {
-        break;
-      }
-    }
-
-    if (i == pResultRowInfo->size - 1) {
-      pResultRowInfo->curPos = i;
-    } else {
-      pResultRowInfo->curPos = i + 1;  // current not closed result object
-    }
-  }
-#endif
-}
-//
-// static void updateResultRowInfoActiveIndex(SResultRowInfo* pResultRowInfo, const STimeWindow* pWin, TSKEY lastKey,
-//                                           bool ascQuery, bool interp) {
-//  if ((lastKey > pWin->ekey && ascQuery) || (lastKey < pWin->ekey && (!ascQuery))) {
-//    closeAllResultRows(pResultRowInfo);
-//    pResultRowInfo->curPos = pResultRowInfo->size - 1;
-//  } else {
-//    int32_t step = ascQuery ? 1 : -1;
-//    doUpdateResultRowIndex(pResultRowInfo, lastKey - step, ascQuery, interp);
-//  }
-//}
-
 //  query_range_start, query_range_end, window_duration, window_start, window_end
 void initExecTimeWindowInfo(SColumnInfoData* pColData, STimeWindow* pQueryWindow) {
   pColData->info.type = TSDB_DATA_TYPE_TIMESTAMP;
@@ -810,20 +736,6 @@ int32_t projectApplyFunctions(SExprInfo* pExpr, SSDataBlock* pResult, SSDataBloc
       // _rowts/_c0, not tbname column
       if (fmIsPseudoColumnFunc(pfCtx->functionId) && (!fmIsScanPseudoColumnFunc(pfCtx->functionId))) {
         // do nothing
-      } else if (fmIsIndefiniteRowsFunc(pfCtx->functionId)) {
-        SResultRowEntryInfo* pResInfo = GET_RES_INFO(&pCtx[k]);
-        pfCtx->fpSet.init(&pCtx[k], pResInfo);
-
-        pfCtx->pOutput = taosArrayGet(pResult->pDataBlock, outputSlotId);
-        pfCtx->offset = createNewColModel ? 0 : pResult->info.rows;  // set the start offset
-
-        // set the timestamp(_rowts) output buffer
-        if (taosArrayGetSize(pPseudoList) > 0) {
-          int32_t* outputColIndex = taosArrayGet(pPseudoList, 0);
-          pfCtx->pTsOutput = (SColumnInfoData*)pCtx[*outputColIndex].pOutput;
-        }
-
-        numOfRows = pfCtx->fpSet.process(pfCtx);
       } else {
         SArray* pBlockList = taosArrayInit(4, POINTER_BYTES);
         taosArrayPush(pBlockList, &pSrcBlock);
@@ -886,7 +798,6 @@ int32_t setGroupResultOutputBuf(SOptrBasicInfo* binfo, int32_t numOfCols, char*
       doSetResultOutBufByKey(pBuf, pResultRowInfo, (char*)pData, bytes, true, groupId, pTaskInfo, false, pAggSup);
   assert(pResultRow != NULL);
 
-  setResultRowKey(pResultRow, pData, type);
   setResultRowInitCtx(pResultRow, pCtx, numOfCols, binfo->rowCellInfoOffset);
   return TSDB_CODE_SUCCESS;
 }
@@ -908,21 +819,6 @@ bool functionNeedToExecute(SqlFunctionCtx* pCtx) {
     return false;
   }
 
-  //  if (functionId == FUNCTION_FIRST_DST || functionId == FUNCTION_FIRST) {
-  //    //    return QUERY_IS_ASC_QUERY(pQueryAttr);
-  //  }
-  //
-  //  // denote the order type
-  //  if ((functionId == FUNCTION_LAST_DST || functionId == FUNCTION_LAST)) {
-  //    //    return pCtx->param[0].i == pQueryAttr->order.order;
-  //  }
-
-  // in the reverse table scan, only the following functions need to be executed
-  //  if (IS_REVERSE_SCAN(pRuntimeEnv) ||
-  //      (pRuntimeEnv->scanFlag == REPEAT_SCAN && functionId != FUNCTION_STDDEV && functionId != FUNCTION_PERCT)) {
-  //    return false;
-  //  }
-
   return true;
 }
 
@@ -3934,27 +3830,6 @@ void initResultSizeInfo(SOperatorInfo* pOperator, int32_t numOfRows) {
   }
 }
 
-// static STableQueryInfo* initTableQueryInfo(const STableListInfo* pTableListInfo) {
-//  int32_t size = taosArrayGetSize(pTableListInfo->pTableList);
-//  if (size == 0) {
-//    return NULL;
-//  }
-//
-//  STableQueryInfo* pTableQueryInfo = taosMemoryCalloc(size, sizeof(STableQueryInfo));
-//  if (pTableQueryInfo == NULL) {
-//    return NULL;
-//  }
-//
-//  for (int32_t j = 0; j < size; ++j) {
-//    STableKeyInfo*   pk = taosArrayGet(pTableListInfo->pTableList, j);
-//    STableQueryInfo* pTQueryInfo = &pTableQueryInfo[j];
-//    pTQueryInfo->lastKey = pk->lastKey;
-//  }
-//
-//  pTableQueryInfo->lastKey = 0;
-//  return pTableQueryInfo;
-//}
-
 SOperatorInfo* createAggregateOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
                                            SSDataBlock* pResultBlock, SExprInfo* pScalarExprInfo,
                                            int32_t numOfScalarExpr, SExecTaskInfo* pTaskInfo) {
@@ -4526,7 +4401,6 @@ static int32_t getTableList(void* metaHandle, int32_t tableType, uint64_t tableU
 static SArray* extractColumnInfo(SNodeList* pNodeList);
 
 static SArray* createSortInfo(SNodeList* pNodeList);
-static SArray* extractPartitionColInfo(SNodeList* pNodeList);
 
 int32_t extractTableSchemaVersion(SReadHandle* pHandle, uint64_t uid, SExecTaskInfo* pTaskInfo) {
   SMetaReader mr = {0};
@@ -4861,12 +4735,7 @@ SOperatorInfo* createOperatorTree(SPhysiNode* pPhyNode, SExecTaskInfo* pTaskInfo
                                                pTaskInfo);
 
   } else if (QUERY_NODE_PHYSICAL_PLAN_PARTITION == type) {
-    SPartitionPhysiNode* pPartNode = (SPartitionPhysiNode*)pPhyNode;
-    SArray*              pColList = extractPartitionColInfo(pPartNode->pPartitionKeys);
-    SSDataBlock*         pResBlock = createResDataBlock(pPhyNode->pOutputDataBlockDesc);
-
-    SExprInfo* pExprInfo = createExprInfo(pPartNode->pTargets, NULL, &num);
-    pOptr = createPartitionOperatorInfo(ops[0], pExprInfo, num, pResBlock, pColList, pTaskInfo);
+    pOptr = createPartitionOperatorInfo(ops[0], (SPartitionPhysiNode*)pPhyNode, pTaskInfo);
   } else if (QUERY_NODE_PHYSICAL_PLAN_MERGE_STATE == type) {
     SStateWinodwPhysiNode* pStateNode = (SStateWinodwPhysiNode*)pPhyNode;
 
diff --git a/source/libs/executor/src/groupoperator.c b/source/libs/executor/src/groupoperator.c
index 688c576d03..23226a0134 100644
--- a/source/libs/executor/src/groupoperator.c
+++ b/source/libs/executor/src/groupoperator.c
@@ -320,8 +320,8 @@ static SSDataBlock* hashGroupbyAggregate(SOperatorInfo* pOperator) {
     setInputDataBlock(pOperator, pInfo->binfo.pCtx, pBlock, order, scanFlag, true);
 
     // there is an scalar expression that needs to be calculated right before apply the group aggregation.
-    if (pInfo->pScalarExprInfo != NULL) {
-      pTaskInfo->code = projectApplyFunctions(pInfo->pScalarExprInfo, pBlock, pBlock, pInfo->pScalarFuncCtx, pInfo->numOfScalarExpr, NULL);
+    if (pInfo->scalarSup.pScalarExprInfo != NULL) {
+      pTaskInfo->code = projectApplyFunctions(pInfo->scalarSup.pScalarExprInfo, pBlock, pBlock, pInfo->scalarSup.pScalarFuncCtx, pInfo->scalarSup.numOfScalarExpr, NULL);
       if (pTaskInfo->code != TSDB_CODE_SUCCESS) {
         longjmp(pTaskInfo->env, pTaskInfo->code);
       }
@@ -385,9 +385,9 @@ SOperatorInfo* createGroupOperatorInfo(SOperatorInfo* downstream, SExprInfo* pEx
   pInfo->pGroupCols      = pGroupColList;
   pInfo->pCondition      = pCondition;
 
-  pInfo->pScalarExprInfo = pScalarExprInfo;
-  pInfo->numOfScalarExpr = numOfScalarExpr;
-  pInfo->pScalarFuncCtx  = createSqlFunctionCtx(pScalarExprInfo, numOfScalarExpr, &pInfo->rowCellInfoOffset);
+  pInfo->scalarSup.pScalarExprInfo = pScalarExprInfo;
+  pInfo->scalarSup.numOfScalarExpr = numOfScalarExpr;
+  pInfo->scalarSup.pScalarFuncCtx  = createSqlFunctionCtx(pScalarExprInfo, numOfScalarExpr, &pInfo->scalarSup.rowCellInfoOffset);
 
   int32_t code = initGroupOptrInfo(&pInfo->pGroupColVals, &pInfo->groupKeyLen, &pInfo->keyBuf, pGroupColList);
   if (code != TSDB_CODE_SUCCESS) {
@@ -624,7 +624,9 @@ static SSDataBlock* hashPartition(SOperatorInfo* pOperator) {
     return NULL;
   }
 
-  SGroupbyOperatorInfo* pInfo = pOperator->info;
+  SExecTaskInfo* pTaskInfo = pOperator->pTaskInfo;
+
+  SPartitionOperatorInfo* pInfo = pOperator->info;
   SSDataBlock* pRes = pInfo->binfo.pRes;
 
   if (pOperator->status == OP_RES_TO_RETURN) {
@@ -641,6 +643,14 @@ static SSDataBlock* hashPartition(SOperatorInfo* pOperator) {
       break;
     }
 
+    // there is an scalar expression that needs to be calculated right before apply the group aggregation.
+    if (pInfo->scalarSupp.pScalarExprInfo != NULL) {
+      pTaskInfo->code = projectApplyFunctions(pInfo->scalarSupp.pScalarExprInfo, pBlock, pBlock, pInfo->scalarSupp.pScalarFuncCtx, pInfo->scalarSupp.numOfScalarExpr, NULL);
+      if (pTaskInfo->code != TSDB_CODE_SUCCESS) {
+        longjmp(pTaskInfo->env, pTaskInfo->code);
+      }
+    }
+
     doHashPartition(pOperator, pBlock);
   }
 
@@ -665,15 +675,26 @@ static void destroyPartitionOperatorInfo(void* param, int32_t numOfOutput) {
   taosMemoryFree(pInfo->columnOffset);
 }
 
-SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SExprInfo* pExprInfo, int32_t numOfCols,
-                                           SSDataBlock* pResultBlock, SArray* pGroupColList, SExecTaskInfo* pTaskInfo) {
+SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SPartitionPhysiNode* pPartNode, SExecTaskInfo* pTaskInfo) {
   SPartitionOperatorInfo* pInfo = taosMemoryCalloc(1, sizeof(SPartitionOperatorInfo));
   SOperatorInfo*        pOperator = taosMemoryCalloc(1, sizeof(SOperatorInfo));
   if (pInfo == NULL || pOperator == NULL) {
     goto _error;
   }
 
-  pInfo->pGroupCols = pGroupColList;
+  SSDataBlock* pResBlock = createResDataBlock(pPartNode->node.pOutputDataBlockDesc);
+
+  int32_t numOfCols = 0;
+  SExprInfo* pExprInfo = createExprInfo(pPartNode->pTargets, NULL, &numOfCols);
+
+  pInfo->pGroupCols = extractPartitionColInfo(pPartNode->pPartitionKeys);
+
+  if (pPartNode->pExprs != NULL) {
+    pInfo->scalarSupp.numOfScalarExpr = 0;
+    pInfo->scalarSupp.pScalarExprInfo = createExprInfo(pPartNode->pExprs, NULL, &pInfo->scalarSupp.numOfScalarExpr);
+    pInfo->scalarSupp.pScalarFuncCtx = createSqlFunctionCtx(
+        pInfo->scalarSupp.pScalarExprInfo, pInfo->scalarSupp.numOfScalarExpr, &pInfo->scalarSupp.rowCellInfoOffset);
+  }
 
   _hash_fn_t hashFn = taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY);
   pInfo->pGroupSet = taosHashInit(100, hashFn, false, HASH_NO_LOCK);
@@ -683,16 +704,16 @@ SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SExprInfo*
 
   uint32_t defaultPgsz  = 0;
   uint32_t defaultBufsz = 0;
-  getBufferPgSize(pResultBlock->info.rowSize, &defaultPgsz, &defaultBufsz);
+  getBufferPgSize(pResBlock->info.rowSize, &defaultPgsz, &defaultBufsz);
 
   int32_t code = createDiskbasedBuf(&pInfo->pBuf, defaultPgsz, defaultBufsz, pTaskInfo->id.str, TD_TMP_DIR_PATH);
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
   }
 
-  pInfo->rowCapacity = blockDataGetCapacityInRow(pResultBlock, getBufPageSize(pInfo->pBuf));
-  pInfo->columnOffset = setupColumnOffset(pResultBlock, pInfo->rowCapacity);
-  code = initGroupOptrInfo(&pInfo->pGroupColVals, &pInfo->groupKeyLen, &pInfo->keyBuf, pGroupColList);
+  pInfo->rowCapacity = blockDataGetCapacityInRow(pResBlock, getBufPageSize(pInfo->pBuf));
+  pInfo->columnOffset = setupColumnOffset(pResBlock, pInfo->rowCapacity);
+  code = initGroupOptrInfo(&pInfo->pGroupColVals, &pInfo->groupKeyLen, &pInfo->keyBuf, pInfo->pGroupCols);
   if (code != TSDB_CODE_SUCCESS) {
     goto _error;
   }
@@ -701,7 +722,7 @@ SOperatorInfo* createPartitionOperatorInfo(SOperatorInfo* downstream, SExprInfo*
   pOperator->blocking     = true;
   pOperator->status       = OP_NOT_OPENED;
   pOperator->operatorType = QUERY_NODE_PHYSICAL_PLAN_PARTITION;
-  pInfo->binfo.pRes       = pResultBlock;
+  pInfo->binfo.pRes       = pResBlock;
   pOperator->numOfExprs   = numOfCols;
   pOperator->pExpr        = pExprInfo;
   pOperator->info         = pInfo;
diff --git a/source/libs/executor/src/scanoperator.c b/source/libs/executor/src/scanoperator.c
index d30e4ef6db..62c2240098 100644
--- a/source/libs/executor/src/scanoperator.c
+++ b/source/libs/executor/src/scanoperator.c
@@ -1157,6 +1157,8 @@ static SSDataBlock* doFilterResult(SSysTableScanInfo* pInfo) {
     return pInfo->pRes->info.rows == 0 ? NULL : pInfo->pRes;
   }
 
+  doFilter(pInfo->pCondition, pInfo->pRes);
+#if 0
   SFilterInfo* filter = NULL;
 
   int32_t code = filterInitFromNode(pInfo->pCondition, &filter, 0);
@@ -1202,6 +1204,7 @@ static SSDataBlock* doFilterResult(SSysTableScanInfo* pInfo) {
 
   px->info.rows = numOfRow;
   pInfo->pRes = px;
+#endif
 
   return pInfo->pRes->info.rows == 0 ? NULL : pInfo->pRes;
 }
@@ -1380,6 +1383,8 @@ static SSDataBlock* doSysTableScan(SOperatorInfo* pOperator) {
       relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock);
       doFilterResult(pInfo);
 
+      blockDataDestroy(p);
+
       pInfo->loadInfo.totalRows += pInfo->pRes->info.rows;
       return (pInfo->pRes->info.rows == 0) ? NULL : pInfo->pRes;
     }
@@ -1469,10 +1474,10 @@ int32_t buildSysDbTableInfo(const SSysTableScanInfo* pInfo, int32_t capacity) {
   p->info.rows = buildDbTableInfoBlock(p, pSysDbTableMeta, size, TSDB_PERFORMANCE_SCHEMA_DB);
 
   relocateColumnData(pInfo->pRes, pInfo->scanCols, p->pDataBlock);
-  //  blockDataDestroy(p);  todo handle memory leak
-
   pInfo->pRes->info.rows = p->info.rows;
-  return p->info.rows;
+  blockDataDestroy(p);
+
+  return pInfo->pRes->info.rows;
 }
 
 int32_t buildDbTableInfoBlock(const SSDataBlock* p, const SSysTableMeta* pSysDbTableMeta, size_t size,
diff --git a/source/libs/executor/src/timewindowoperator.c b/source/libs/executor/src/timewindowoperator.c
index 4141c85366..4673123779 100644
--- a/source/libs/executor/src/timewindowoperator.c
+++ b/source/libs/executor/src/timewindowoperator.c
@@ -333,11 +333,6 @@ void doTimeWindowInterpolation(SIntervalAggOperatorInfo* pInfo, int32_t numOfExp
       continue;
     }
 
-    //    if (functionId != FUNCTION_TWA && functionId != FUNCTION_INTERP) {
-    //      pCtx[k].start.key = INT64_MIN;
-    //      continue;
-    //    }
-
     SFunctParam*     pParam = &pCtx[k].param[0];
     SColumnInfoData* pColInfo = taosArrayGet(pDataBlock, pParam->pCol->slotId);
 
diff --git a/source/libs/function/inc/texpr.h b/source/libs/function/inc/texpr.h
deleted file mode 100644
index 68aedcb5a2..0000000000
--- a/source/libs/function/inc/texpr.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
- *
- * This program is free software: you can use, redistribute, and/or modify
- * it under the terms of the GNU Affero General Public License, version 3
- * or later ("AGPL"), as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _TD_COMMON_EXPR_H_
-#define _TD_COMMON_EXPR_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include "os.h"
-
-#include "tmsg.h"
-#include "taosdef.h"
-#include "tskiplist.h"
-#include "function.h"
-
-struct tExprNode;
-struct SSchema;
-
-#define QUERY_COND_REL_PREFIX_IN "IN|"
-#define QUERY_COND_REL_PREFIX_LIKE "LIKE|"
-#define QUERY_COND_REL_PREFIX_MATCH "MATCH|"
-#define QUERY_COND_REL_PREFIX_NMATCH "NMATCH|"
-
-#define QUERY_COND_REL_PREFIX_IN_LEN   3
-#define QUERY_COND_REL_PREFIX_LIKE_LEN 5
-#define QUERY_COND_REL_PREFIX_MATCH_LEN 6
-#define QUERY_COND_REL_PREFIX_NMATCH_LEN 7
-
-typedef bool (*__result_filter_fn_t)(const void *, void *);
-typedef void (*__do_filter_suppl_fn_t)(void *, void *);
-
-/**
- * this structure is used to filter data in tags, so the offset of filtered tag column in tagdata string is required
- */
-typedef struct tQueryInfo {
-  uint8_t       optr;     // expression operator
-  SSchema       sch;      // schema of tags
-  char*         q;
-  __compar_fn_t compare;  // filter function
-  bool          indexed;  // indexed columns
-} tQueryInfo;
-
-typedef struct SExprTraverseSupp {
-  __result_filter_fn_t   nodeFilterFn;
-  __do_filter_suppl_fn_t setupInfoFn;
-  void                  *pExtInfo;
-} SExprTraverseSupp;
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif  /*_TD_COMMON_EXPR_H_*/
diff --git a/source/libs/function/src/texpr.c b/source/libs/function/src/texpr.c
index f04b4f17f9..039e0a9dfc 100644
--- a/source/libs/function/src/texpr.c
+++ b/source/libs/function/src/texpr.c
@@ -17,15 +17,7 @@
 #include "os.h"
 
 #include "texception.h"
-#include "taosdef.h"
 #include "tmsg.h"
-#include "tarray.h"
-#include "tbuffer.h"
-#include "tcompare.h"
-#include "thash.h"
-#include "texpr.h"
-#include "tvariant.h"
-#include "tdef.h"
 
 static void doExprTreeDestroy(tExprNode **pExpr, void (*fp)(void *));