fix(query): make exchange operator inherit input order from upstream

source/libs/executor/src/executorimpl.c

@@ -1452,13 +1452,16 @@ int32_t appendDownstream(SOperatorInfo* p, SOperatorInfo** pDownstream, int32_t
 int32_t getTableScanInfo(SOperatorInfo* pOperator, int32_t* order, int32_t* scanFlag) {
   // todo add more information about exchange operation
   int32_t type = pOperator->operatorType;
-  if (type == QUERY_NODE_PHYSICAL_PLAN_EXCHANGE || type == QUERY_NODE_PHYSICAL_PLAN_SYSTABLE_SCAN ||
-      type == QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN || type == QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN ||
-      type == QUERY_NODE_PHYSICAL_PLAN_BLOCK_DIST_SCAN || type == QUERY_NODE_PHYSICAL_PLAN_LAST_ROW_SCAN ||
-      type == QUERY_NODE_PHYSICAL_PLAN_TABLE_COUNT_SCAN) {
+  if (type == QUERY_NODE_PHYSICAL_PLAN_SYSTABLE_SCAN || type == QUERY_NODE_PHYSICAL_PLAN_STREAM_SCAN ||
+      type == QUERY_NODE_PHYSICAL_PLAN_TAG_SCAN || type == QUERY_NODE_PHYSICAL_PLAN_BLOCK_DIST_SCAN ||
+      type == QUERY_NODE_PHYSICAL_PLAN_LAST_ROW_SCAN || type == QUERY_NODE_PHYSICAL_PLAN_TABLE_COUNT_SCAN) {
     *order = TSDB_ORDER_ASC;
     *scanFlag = MAIN_SCAN;
     return TSDB_CODE_SUCCESS;
+  } else if (type == QUERY_NODE_PHYSICAL_PLAN_EXCHANGE) {
+    // for exchange operator inherit order from upstream and do not overwrite here
+    *scanFlag = MAIN_SCAN;
+    return TSDB_CODE_SUCCESS;
   } else if (type == QUERY_NODE_PHYSICAL_PLAN_TABLE_SCAN) {
     STableScanInfo* pTableScanInfo = pOperator->info;
     *order = pTableScanInfo->base.cond.order;

tests/parallel_test/cases.task

@@ -945,7 +945,7 @@
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/function_null.py -Q 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/count_partition.py -Q 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/max_partition.py -Q 3
-#,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/max_min_last_interval.py -Q 3
+,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/max_min_last_interval.py -Q 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/last_row.py -Q 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/tsbsQuery.py -Q 3
 ,,y,system-test,./pytest.sh python3 ./test.py -f 2-query/sml.py -Q 3