alamb commented on issue #3014:
URL:
https://github.com/apache/arrow-datafusion/issues/3014#issuecomment-1203948317
@iajoiner I don't quite follow what you want to do...
Is it like you want a way to override `PhysicalExpr::execute` for all nodes?
Have you considered a wrapper that does your side effect, something like:
```rust
struct PhysicalExprWithEffects {
inner: Arc<dyn PhysicalExpr>
}
impl PhysicalExpr for PhysicalExprWithEffects
fn evaluate(&self, batch: &RecordBatch) -> Result<ColumnarValue> {
// TODO: add your side effects here
// then call the inner expr:
self.inner.evaluate(batch)
}
...
}
```
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