alamb commented on PR #9138:
URL: https://github.com/apache/arrow-rs/pull/9138#issuecomment-3739741636
I am not sure we need a new crate just for the HeapSize trait in a
downstream crate (DataFUsion)
What about making a trait like this in DataFusion common:
```rust
pub trait DFHeapSize {
...
}
```
And then providing a blanket implementation for `DFHeapSize` for everything
that implements `HeapSize`
```rust
impl <T: HeapSize> for DFHeapSize {
...
}
```
That way we can use the arrow implementations, but we don't have to make a
whole new crate etc
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