add assert as condition should not be true

src/client/src/tscLocalMerge.c

@@ -316,6 +316,7 @@ void tscCreateLocalReducer(tExtMemBuffer **pMemBuffer, int32_t numOfBuffer, tOrd
   pReducer->finalRowSize = tscGetResRowLength(pQueryInfo->exprList);
   pReducer->resColModel = finalmodel;
   pReducer->resColModel->capacity = pReducer->nResultBufSize;
+  assert(pReducer->finalRowSize > 0);
   if (pReducer->finalRowSize > 0) {
     pReducer->resColModel->capacity /= pReducer->finalRowSize;
   }

src/client/src/tscSubquery.c

@@ -936,6 +936,7 @@ static SJoinSupporter* tscUpdateSubqueryStatus(SSqlObj* pSql, int32_t numOfFetch
     }
   }
   
+  assert(pState != NULL);
   if (pState != NULL) {
     pState->numOfTotal = pSql->numOfSubs;
     pState->numOfRemain = numOfFetch;