yixiutt commented on code in PR #17873:
URL: https://github.com/apache/doris/pull/17873#discussion_r1150317122


##########
be/src/vec/olap/block_reader.h:
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@@ -110,6 +114,8 @@ class BlockReader final : public TabletReader {
     ColumnPtr _delete_filter_column;
 
     bool _is_rowsets_overlapping = true;
+
+    bool _should_check_same_row = false;

Review Comment:
   In vertical block reader, we get next block directly instead of get row by 
row, so it's hard to achieve this row same check



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