cambyzju commented on code in PR #12404:
URL: https://github.com/apache/doris/pull/12404#discussion_r964371039
##########
be/src/vec/columns/column_vector.h:
##########
@@ -288,6 +288,12 @@ class ColumnVector final : public
COWHelper<ColumnVectorHelper, ColumnVector<T>>
}
}
+ void set_all_to_zero(size_t num) {
+ for (size_t i = 0; i < num; ++i) {
Review Comment:
may be use memset is better for performance:
`memset(data.data(), 0, sizeof(value_type) * num);`
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