wangbo commented on code in PR #9500:
URL: https://github.com/apache/incubator-doris/pull/9500#discussion_r870050224
##########
be/src/vec/columns/predicate_column.h:
##########
@@ -230,17 +230,36 @@ class PredicateColumnType final : public
COWHelper<IColumn, PredicateColumnType<
void insert_many_binary_data(char* data_array, uint32_t* len_array,
uint32_t* start_offset_array, size_t num)
override {
if constexpr (std::is_same_v<T, StringValue>) {
+ if (!_is_mem_pool_inited) {
+ _pool.reset(new MemPool("PredicateStringColumn"));
+ _is_mem_pool_inited = true;
+ }
+
+ size_t total_mem_size = 0;
+ for (size_t i = 0; i < num; i++) {
+ total_mem_size += len_array[i];
+ }
+
+ char* destination = (char*)_pool->allocate(total_mem_size);
for (size_t i = 0; i < num; i++) {
uint32_t len = len_array[i];
uint32_t start_offset = start_offset_array[i];
- insert_string_value(data_array + start_offset, len);
+ memcpy(destination, data_array + start_offset, len);
+ StringValue sv(destination, len);
+ data.push_back_without_reserve(sv);
+ destination += len;
}
}
}
void insert_default() override { data.push_back(T()); }
- void clear() override { data.clear(); }
+ void clear() override {
+ data.clear();
+ if (_is_mem_pool_inited) {
Review Comment:
This is just for memory reuse.
```
mem_pool.h
/// Makes all allocated chunks available for re-use, but doesn't delete
any chunks.
void clear();
```
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