HaoYang670 commented on issue #1799:
URL: https://github.com/apache/arrow-rs/issues/1799#issuecomment-1147381920
> Introduce a new ArrayDataLayout enumeration:
```rust
pub enum ArrayDataLayout {
Boolean { values: Buffer },
Primitive{ values: Buffer },
Offsets { offsets: Buffer, values: Buffer },
Dictionary { keys: Buffer, values: ArrayData },
List { offsets: Buffer, elements: ArrayData },
Struct { children: Vec<ArrayData> },
Union { offsets: Option<Buffer>, types: Buffer, children: Vec<ArrayData> },
}
```
I guess in this way, `Arrays` don't share the same layout anymore.
Personally, I like it. Much clear than `ArrayData`.
Curiously, why not directly declare each type of Array with `Buffers`, for
example:
```rust
Struct GenericBinaryArray {
validatity: Option<Bitmap>,
null_count: Option<usize>,
offsets: Buffer,
values: Buffer,
}
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