Smith-Cruise opened a new issue, #47905:
URL: https://github.com/apache/arrow/issues/47905
### Describe the enhancement requested
When the user called `ColumnChunkMetaData::statistics()`, it will call
`MakeStatistics()` function.
```c++
/// \brief Typed version of Statistics::Make
template <typename DType>
std::shared_ptr<TypedStatistics<DType>> MakeStatistics(
const ColumnDescriptor* descr, const std::string& encoded_min,
const std::string& encoded_max, int64_t num_values, int64_t null_count,
int64_t distinct_count, bool has_min_max, bool has_null_count,
bool has_distinct_count, std::optional<bool> is_min_value_exact,
std::optional<bool> is_max_value_exact,
::arrow::MemoryPool* pool = ::arrow::default_memory_pool()) {
return std::static_pointer_cast<TypedStatistics<DType>>(
Statistics::Make(descr, encoded_min, encoded_max, num_values,
null_count,
distinct_count, has_min_max, has_null_count,
has_distinct_count,
is_min_value_exact, is_max_value_exact, pool));
}
```
Although the function supports memory pool as an input parameter, but the
caller does not pass memory_pool, which results in the user-defined memory pool
not being used when creating ColumnChunk's statistics.
### Component(s)
C++
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