zhannngchen commented on code in PR #12117:
URL: https://github.com/apache/doris/pull/12117#discussion_r956531633


##########
be/src/exec/olap_scanner.cpp:
##########
@@ -152,14 +152,15 @@ Status OlapScanner::_init_tablet_reader_params(
                       ->rowset()
                       ->rowset_meta()
                       ->is_segments_overlapping());
+    
+    bool has_replace_col = false;
+    RETURN_IF_ERROR(_init_return_columns(!single_non_overlapping_version, 
has_replace_col));
 
-    _tablet_reader_params.direct_mode = single_version || _aggregation;

Review Comment:
   Is the following change also can fix the issue?
   ```
   bool unique_key_with_seq =  _tablet->keys_type() == UNIQUE_KEYS && 
_tablet->tablet_schema().has_sequence_col();
   _tablet_reader_params.direct_mode = single_version || (_aggregation && ! 
unique_key_with_seq) ;
   ```



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