jayzhan211 commented on PR #14057:
URL: https://github.com/apache/datafusion/pull/14057#issuecomment-2620677936
> sorry @jayzhan211 I edited my comment above after you reacted to it I
think, I felt bad about requesting an explainer when there was already a thread
with details
Maybe we can think about whether changing the `metadata` in `Field` makes
sense
```rust
pub struct Field {
name: String,
data_type: DataType,
nullable: bool,
dict_id: i64,
dict_is_ordered: bool,
/// A map of key-value pairs containing additional custom meta data.
metadata: HashMap<String, String>,
}
Field.metadata['is_system_generated'] = 'true'
```
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