viirya commented on issue #5098:
URL: https://github.com/apache/arrow-rs/issues/5098#issuecomment-1817937065
I think it could make constructing `ListBuilder` for various element type
more easier, at least I don't need such block:
```rust
DataType::List(field) => {
match field.data_type() {
DataType::Boolean => {
...
Box::new(ListBuilder::new(*builder))
}
DataType::Int8 => {
...
}
...
}
```
For nested `ListBuilder`, we don't need to downcast nested `ListBuilder` (we
are blocked by this as we cannot figure out nested generic type dynamically).
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