mkleen commented on issue #9296:
URL: https://github.com/apache/arrow-rs/issues/9296#issuecomment-3818135231
So then `RowGroupMetaData` would return a Statistics struct containing all
stats for all `Vec<ColumnChunkMetaData>` columns, something like:
```rust
pub struct Statistics<T> {
min: GenericByteArray<T>,
max: GenericByteArray<T>,
distinct_count: Int64Array,
null_count: Int64Array,
is_min_value_exact: BooleanArray,
is_max_value_exact: BooleanArray,
}
```
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