mrhhsg commented on code in PR #54068:
URL: https://github.com/apache/doris/pull/54068#discussion_r2335915446
##########
be/src/vec/columns/column_map.cpp:
##########
@@ -505,6 +507,96 @@ MutableColumnPtr ColumnMap::permute(const Permutation&
perm, size_t limit) const
assert_cast<const
ColumnArray&>(*k_arr).get_offsets_ptr());
}
+Status ColumnMap::deduplicate_keys(bool recursive) {
+ const auto inner_rows = keys_column->size();
+ const auto rows = offsets_column->size();
+
+ if (recursive) {
Review Comment:
理论上咱们生成一个 map column 时会就会去重，那么大部分场景下可能不需要递归式的去重。
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