alamb opened a new issue, #1934:
URL: https://github.com/apache/arrow-rs/issues/1934
**Is your feature request related to a problem or challenge? Please describe
what you are trying to do.**:
I want to make a field Nullable as part of outer joins creation in DataFusion
I would like a builder style API so I can write code like
```rust
let field = old_field.clone()
.with_nullable(force_nullable)
```
but instead I have to write
```rust
if force_nullable {
Field::new(
old_field.name(),
old_field.data_type().clone(),
true
)
} else {
old_field.clone()
}
```
**Describe the solution you'd like**
Ideally we could add functions to
https://docs.rs/arrow/16.0.0/arrow/datatypes/struct.Field.html
```rust
impl Field {
pub fn with_nullable(mut self, nullable: bool) -> Self {
..
}
pub fn with_dict_id(mut self, dict_id: i64) -> Self {
..
}
pub fn with_data_type(mut self, data_type: DataType) -> Self {
..
}
pub fn with_dict_is_ordered(mut self, dict_is_ordered: Option<bool>) ->
Self {
..
}
}
```
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features
you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.
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