diff --git a/src/client/src/tscFunctionImpl.c b/src/client/src/tscFunctionImpl.c
index b7543cb42dcc24e3d5aa30c8b0769c7a6ddc22c4..f63b18c277adeb6fd12c1f08013bf1ad09869f06 100644
--- a/src/client/src/tscFunctionImpl.c
+++ b/src/client/src/tscFunctionImpl.c
@@ -1878,7 +1878,8 @@ static void do_top_function_add(STopBotInfo *pInfo, int32_t maxLen, void *pData,
   tVariantCreateFromBinary(&val, pData, tDataTypeDesc[type].nSize, type);
 
   tValuePair **pList = pInfo->res;
-
+  assert(pList != NULL);
+  
   if (pInfo->num < maxLen) {
     if (pInfo->num == 0 ||
         ((type >= TSDB_DATA_TYPE_TINYINT && type <= TSDB_DATA_TYPE_BIGINT) &&
diff --git a/src/system/detail/src/vnodeQueryImpl.c b/src/system/detail/src/vnodeQueryImpl.c
index 2ba38d3e9e46ce479c9fde74161a45f980da6a41..33fb3fe760de8b6dc27079d8da231b4291fc2c7e 100644
--- a/src/system/detail/src/vnodeQueryImpl.c
+++ b/src/system/detail/src/vnodeQueryImpl.c
@@ -4461,6 +4461,8 @@ int32_t vnodeQuerySingleMeterPrepare(SQInfo *pQInfo, SMeterObj *pMeterObj, SMete
 
   // the pQuery->skey is changed during normalizedFirstQueryRange, so set the newest lastkey value
   pQuery->lastKey = pQuery->skey;
+  pRuntimeEnv->stableQuery = false;
+  
   return TSDB_CODE_SUCCESS;
 }
 
@@ -4600,7 +4602,8 @@ int32_t vnodeMultiMeterQueryPrepare(SQInfo *pQInfo, SQuery *pQuery, void *param)
   TSKEY revisedStime = taosGetIntervalStartTimestamp(pSupporter->rawSKey, pQuery->nAggTimeInterval,
                                                      pQuery->intervalTimeUnit, pQuery->precision);
   taosInitInterpoInfo(&pRuntimeEnv->interpoInfo, pQuery->order.order, revisedStime, 0, 0);
-
+  pRuntimeEnv->stableQuery = true;
+  
   return TSDB_CODE_SUCCESS;
 }