ozankabak commented on PR #5111:
URL:
https://github.com/apache/arrow-datafusion/pull/5111#issuecomment-1407977783
You mean something like this?
```rust
fn maintains_input_order(&self) -> Vec<bool> {
// ... comment text ...
if let Some(output_ordering) = self.output_ordering() {
self.inputs()
.iter()
.map(|child| {
if let Some(child_ordering) = child.output_ordering() {
output_ordering.len() == child_ordering.len()
} else {
false
}
})
.collect()
} else {
vec![false; self.inputs().len()]
}
}
```
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