fix(query): add more check for fetch rsp, and set the correct start time window for fill.

source/client/src/clientImpl.c

@@ -1473,12 +1473,16 @@ void* doAsyncFetchRows(SRequestObj* pRequest, bool setupOneRowPtr, bool convertU
     tsem_wait(&pParam->sem);
   }
 
-  if (pRequest->code == TSDB_CODE_SUCCESS && pResultInfo->numOfRows > 0 && setupOneRowPtr) {
-    doSetOneRowPtr(pResultInfo);
-    pResultInfo->current += 1;
-  }
+  if (pResultInfo->numOfRows == 0  || pRequest->code != TSDB_CODE_SUCCESS) {
+    return NULL;
+  } else {
+    if (setupOneRowPtr) {
+      doSetOneRowPtr(pResultInfo);
+      pResultInfo->current += 1;
+    }
 
-  return pResultInfo->row;
+    return pResultInfo->row;
+  }
 }
 
 static int32_t doPrepareResPtr(SReqResultInfo* pResInfo) {

source/libs/executor/inc/executorimpl.h

@@ -779,6 +779,8 @@ int32_t extractDataBlockFromFetchRsp(SSDataBlock* pRes, SLoadRemoteDataInfo* pLo
                                   int32_t compLen, int32_t numOfOutput, int64_t startTs, uint64_t* total,
                                   SArray* pColList);
 void    getAlignQueryTimeWindow(SInterval* pInterval, int32_t precision, int64_t key, STimeWindow* win);
+STimeWindow getFirstQualifiedTimeWindow(int64_t ts, STimeWindow* pWindow, SInterval* pInterval, int32_t order);
+
 int32_t getTableScanInfo(SOperatorInfo* pOperator, int32_t *order, int32_t* scanFlag);
 int32_t getBufferPgSize(int32_t rowSize, uint32_t* defaultPgsz, uint32_t* defaultBufsz);
 

source/libs/executor/src/executil.c

@@ -869,7 +869,7 @@ static STimeWindow doCalculateTimeWindow(int64_t ts, SInterval* pInterval) {
   return w;
 }
 
-static STimeWindow getFirstQualifiedTimeWindow(int64_t ts, STimeWindow* pWindow, SInterval* pInterval, int32_t order) {
+STimeWindow getFirstQualifiedTimeWindow(int64_t ts, STimeWindow* pWindow, SInterval* pInterval, int32_t order) {
   int32_t factor = (order == TSDB_ORDER_ASC)? -1:1;
 
   STimeWindow win = *pWindow;

source/libs/executor/src/executorimpl.c

@@ -4008,6 +4008,7 @@ static int32_t initFillInfo(SFillOperatorInfo* pInfo, SExprInfo* pExpr, int32_t
 
   STimeWindow w = TSWINDOW_INITIALIZER;
   getAlignQueryTimeWindow(pInterval, pInterval->precision, win.skey, &w);
+  w = getFirstQualifiedTimeWindow(win.skey, &w, pInterval, TSDB_ORDER_ASC);
 
   int32_t order = TSDB_ORDER_ASC;
   pInfo->pFillInfo = taosCreateFillInfo(order, w.skey, 0, capacity, numOfCols, pInterval, fillType, pColInfo, id);