[td-3779] <fix>: fix bug during filter data block when handling last query.

src/query/src/qAggMain.c

@@ -744,7 +744,7 @@ static int32_t firstDistFuncRequired(SQLFunctionCtx *pCtx, STimeWindow* w, int32
   if (pInfo->hasResult != DATA_SET_FLAG) {
     return BLK_DATA_ALL_NEEDED;
   } else {  // data in current block is not earlier than current result
-    return (pInfo->ts <= w->skey) ? BLK_DATA_NO_NEEDED : BLK_DATA_ALL_NEEDED;
+    return (pInfo->ts <= w->skey) ? BLK_DATA_DISCARD : BLK_DATA_ALL_NEEDED;
   }
 }
 
@@ -764,7 +764,7 @@ static int32_t lastDistFuncRequired(SQLFunctionCtx *pCtx, STimeWindow* w, int32_
   if (pInfo->hasResult != DATA_SET_FLAG) {
     return BLK_DATA_ALL_NEEDED;
   } else {
-    return (pInfo->ts > w->ekey) ? BLK_DATA_NO_NEEDED : BLK_DATA_ALL_NEEDED;
+    return (pInfo->ts > w->ekey) ? BLK_DATA_DISCARD : BLK_DATA_ALL_NEEDED;
   }
 }
 

src/query/src/qExecutor.c

@@ -2639,7 +2639,7 @@ int32_t loadDataBlockOnDemand(SQueryRuntimeEnv* pRuntimeEnv, STableScanInfo* pTa
   }
 
   SDataBlockInfo* pBlockInfo = &pBlock->info;
-  if ((*status) == BLK_DATA_NO_NEEDED) {
+  if ((*status) == BLK_DATA_NO_NEEDED || (*status) == BLK_DATA_DISCARD) {
     qDebug("QInfo:%"PRIu64" data block discard, brange:%" PRId64 "-%" PRId64 ", rows:%d", pQInfo->qId, pBlockInfo->window.skey,
            pBlockInfo->window.ekey, pBlockInfo->rows);
     pCost->discardBlocks += 1;