eldenmoon commented on code in PR #15642:
URL: https://github.com/apache/doris/pull/15642#discussion_r1071095007


##########
fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java:
##########
@@ -1052,6 +1060,10 @@ protected void toThrift(TPlanNode msg) {
         if (pushDownAggNoGroupingOp != null) {
             msg.olap_scan_node.setPushDownAggTypeOpt(pushDownAggNoGroupingOp);
         }
+
+        if (orderingExprs != null) {

Review Comment:
   redundant code, to be removed



##########
gensrc/thrift/Descriptors.thrift:
##########
@@ -51,6 +51,8 @@ struct TSlotDescriptor {
   9: required i32 slotIdx
   10: required bool isMaterialized
   11: optional i32 col_unique_id = -1
+  12: optional bool is_key = false
+  13: optional bool is_invalid = false

Review Comment:
   good advice



##########
be/src/vec/exprs/vslot_ref.cpp:
##########
@@ -50,6 +50,12 @@ Status VSlotRef::prepare(doris::RuntimeState* state, const 
doris::RowDescriptor&
     if (slot_desc == nullptr) {
         return Status::InternalError("couldn't resolve slot descriptor {}", 
_slot_id);
     }
+    if (slot_desc->invalid()) {
+        // invalid slot should be ignored manually
+        _column_id = -1;
+        _column_name = &slot_desc->col_name();

Review Comment:
   ok



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