HappenLee commented on code in PR #43873:
URL: https://github.com/apache/doris/pull/43873#discussion_r1842023312
##########
be/src/vec/columns/column.h:
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@@ -669,7 +669,7 @@ class IColumn : public COW<IColumn> {
// only used in agg value replace
// ColumnString should replace according to 0,1,2... ,size,0,1,2...
virtual void replace_column_data(const IColumn&, size_t row, size_t
self_row = 0) = 0;
-
+ // replace data to default value if null, used to avoid null data output
decimal check failure
Review Comment:
Add more detail comment for the two api
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