[TD-10776]<fix>: solve the problem that hashIntervalAgg function triggers...

[TD-10776]<fix>: solve the problem that hashIntervalAgg function triggers assert when the return result of sub query is filtered.

src/query/src/qExecutor.c

@@ -5959,6 +5959,9 @@ static SSDataBlock* doIntervalAgg(void* param, bool* newgroup) {
     if (pBlock == NULL) {
       break;
     }
+    if (pBlock->info.rows == 0) {
+      continue;
+    }
 
     setTagValue(pOperator, pRuntimeEnv->current->pTable, pIntervalInfo->pCtx, pOperator->numOfOutput);