diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 261ba86bda..b69a5e7434 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -1875,6 +1875,7 @@ static int32_t setCtxTagColumnInfo(SQueryRuntimeEnv *pRuntimeEnv, SQLFunctionCtx
   return TSDB_CODE_SUCCESS;
 }
 
+// todo refactor
 static int32_t setupQueryRuntimeEnv(SQueryRuntimeEnv *pRuntimeEnv, int16_t order) {
   qDebug("QInfo:%p setup runtime env", GET_QINFO_ADDR(pRuntimeEnv));
   SQuery *pQuery = pRuntimeEnv->pQuery;
@@ -3845,11 +3846,6 @@ void setExecutionContext(SQInfo *pQInfo, int32_t groupIndex, TSKEY nextKey) {
 
   // lastKey needs to be updated
   pTableQueryInfo->lastKey = nextKey;
-
-  if (pRuntimeEnv->hasTagResults || pRuntimeEnv->pTsBuf != NULL) {
-    setAdditionalInfo(pQInfo, pTableQueryInfo->pTable, pTableQueryInfo);
-  }
-
   if (pRuntimeEnv->prevGroupId != INT32_MIN && pRuntimeEnv->prevGroupId == groupIndex) {
     return;
   }
@@ -4296,7 +4292,6 @@ int32_t doFillGapsInResults(SQueryRuntimeEnv* pRuntimeEnv, tFilePage **pDst, int
              pQInfo, pFillInfo->numOfRows, ret, pQuery->limit.offset, ret - pQuery->limit.offset, 0);
 
       ret -= (int32_t)pQuery->limit.offset;
-      // todo !!!!there exactly number of interpo is not valid.
       for (int32_t i = 0; i < pQuery->numOfOutput; ++i) {
         memmove(pDst[i]->data, pDst[i]->data + pQuery->pExpr1[i].bytes * pQuery->limit.offset,
                 ret * pQuery->pExpr1[i].bytes);
@@ -4777,19 +4772,17 @@ static void enableExecutionForNextTable(SQueryRuntimeEnv *pRuntimeEnv) {
   }
 }
 
-// TODO refactor: setAdditionalInfo
 static FORCE_INLINE void setEnvForEachBlock(SQInfo* pQInfo, STableQueryInfo* pTableQueryInfo, SDataBlockInfo* pBlockInfo) {
   SQueryRuntimeEnv* pRuntimeEnv = &pQInfo->runtimeEnv;
   SQuery* pQuery = pQInfo->runtimeEnv.pQuery;
   int32_t step = GET_FORWARD_DIRECTION_FACTOR(pQuery->order.order);
 
-  if (QUERY_IS_INTERVAL_QUERY(pQuery)) {
-    TSKEY nextKey = pBlockInfo->window.skey;
-    setIntervalQueryRange(pQInfo, nextKey);
+  if (pRuntimeEnv->hasTagResults || pRuntimeEnv->pTsBuf != NULL) {
+    setAdditionalInfo(pQInfo, pTableQueryInfo->pTable, pTableQueryInfo);
+  }
 
-    if (pRuntimeEnv->hasTagResults || pRuntimeEnv->pTsBuf != NULL) {
-      setAdditionalInfo(pQInfo, pTableQueryInfo->pTable, pTableQueryInfo);
-    }
+  if (QUERY_IS_INTERVAL_QUERY(pQuery)) {
+    setIntervalQueryRange(pQInfo, pBlockInfo->window.skey);
   } else {  // non-interval query
     setExecutionContext(pQInfo, pTableQueryInfo->groupIndex, pBlockInfo->window.ekey + step);
   }
@@ -4812,7 +4805,7 @@ static void doTableQueryInfoTimeWindowCheck(SQuery* pQuery, STableQueryInfo* pTa
 static int64_t scanMultiTableDataBlocks(SQInfo *pQInfo) {
   SQueryRuntimeEnv *pRuntimeEnv = &pQInfo->runtimeEnv;
   SQuery*           pQuery = pRuntimeEnv->pQuery;
-  SQueryCostInfo*   summary  = &pRuntimeEnv->summary;
+  SQueryCostInfo*   summary = &pRuntimeEnv->summary;
 
   int64_t st = taosGetTimestampMs();
 
@@ -5469,7 +5462,7 @@ static void doRestoreContext(SQInfo *pQInfo) {
   SET_MASTER_SCAN_FLAG(pRuntimeEnv);
 }
 
-static void doCloseAllTimeWindowAfterScan(SQInfo *pQInfo) {
+static void doCloseAllTimeWindow(SQInfo *pQInfo) {
   SQuery *pQuery = pQInfo->runtimeEnv.pQuery;
 
   if (QUERY_IS_INTERVAL_QUERY(pQuery)) {
@@ -5521,7 +5514,7 @@ static void multiTableQueryProcess(SQInfo *pQInfo) {
   }
 
   // close all time window results
-  doCloseAllTimeWindowAfterScan(pQInfo);
+  doCloseAllTimeWindow(pQInfo);
 
   if (needReverseScan(pQuery)) {
     int32_t code = doSaveContext(pQInfo);
@@ -5846,8 +5839,7 @@ static void stableQueryImpl(SQInfo *pQInfo) {
       (isFixedOutputQuery(pRuntimeEnv) && (!isPointInterpoQuery(pQuery)) && (!pRuntimeEnv->groupbyColumn))) {
     multiTableQueryProcess(pQInfo);
   } else {
-    assert((pQuery->checkResultBuf == 1 && pQuery->interval.interval == 0) || isPointInterpoQuery(pQuery) ||
-           pRuntimeEnv->groupbyColumn);
+    assert(pQuery->checkResultBuf == 1 || isPointInterpoQuery(pQuery) || pRuntimeEnv->groupbyColumn);
 
     sequentialTableProcess(pQInfo);
   }
@@ -6375,7 +6367,7 @@ static int32_t createQueryFuncExprFromMsg(SQueryTableMsg *pQueryMsg, int32_t num
     if (functId == TSDB_FUNC_TOP || functId == TSDB_FUNC_BOTTOM) {
       int32_t j = getColumnIndexInSource(pQueryMsg, &pExprs[i].base, pTagCols);
       if (j < 0 || j >= pQueryMsg->numOfCols) {
-        assert(0);
+        return TSDB_CODE_QRY_INVALID_MSG;
       } else {
         SColumnInfo *pCol = &pQueryMsg->colList[j];
         int32_t ret =
@@ -6640,7 +6632,7 @@ static SQInfo *createQInfoImpl(SQueryTableMsg *pQueryMsg, SSqlGroupbyExpr *pGrou
   pQInfo->runtimeEnv.summary.tableInfoSize += (pTableGroupInfo->numOfTables * sizeof(STableQueryInfo));
 
   pQInfo->runtimeEnv.pResultRowHashTable = taosHashInit(pTableGroupInfo->numOfTables, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
-  pQInfo->runtimeEnv.keyBuf = malloc(TSDB_MAX_BYTES_PER_ROW);
+  pQInfo->runtimeEnv.keyBuf = malloc(TSDB_MAX_BYTES_PER_ROW);  // todo opt size
   pQInfo->runtimeEnv.pool = initResultRowPool(getResultRowSize(&pQInfo->runtimeEnv));
   pQInfo->runtimeEnv.prevRow = malloc(POINTER_BYTES * pQuery->numOfCols + srcSize);
 
diff --git a/tests/script/general/parser/function.sim b/tests/script/general/parser/function.sim
index 7d702e989e..133c05c6f4 100644
--- a/tests/script/general/parser/function.sim
+++ b/tests/script/general/parser/function.sim
@@ -382,4 +382,28 @@ sql drop table cars;
 sql create table cars(ts timestamp, c int) tags(id int);
 sql create table car1 using cars tags(1);
 sql create table car2 using cars tags(2);
-sql insert into car1 (ts, c) values (now,1) car2(ts, c) values(now, 2);
\ No newline at end of file
+sql insert into car1 (ts, c) values (now,1) car2(ts, c) values(now, 2);
+
+print ========================> TD-2700
+sql create table t1(ts timestamp, k int);
+sql insert into t1 values(1500000001000, 0);
+sql select sum(k) from t1 interval(1d) sliding(1h);
+if $rows != 24 then
+  return -1
+endi
+
+print ========================> TD-2740
+sql drop table if exists m1;
+sql create table m1(ts timestamp, k int) tags(a int);
+sql create table tm0 using m1 tags(0);
+sql create table tm1 using m1 tags(1);
+sql create table tm2 using m1 tags(2);
+sql create table tm3 using m1 tags(3);
+sql insert into tm0 values('2020-1-1 1:1:1', 0);
+sql insert into tm1 values('2020-1-5 1:1:1', 0);
+sql insert into tm2 values('2020-1-7 1:1:1', 0);
+sql insert into tm3 values('2020-1-1 1:1:1', 0);
+sql select count from m1 where ts='2020-1-1 1:1:1' interval(1h) group by tbname;
+if $rows != 2 then
+  return -1
+endi
\ No newline at end of file