viirya commented on PR #3510:
URL: https://github.com/apache/arrow-rs/pull/3510#issuecomment-1379590285
> Not the ordering we use currently, they're ordered based on their
constituent bits, NaNs with different byte representations will not compare
equal
We have NaN equality test to verify that they are equal. I also did a quick
verification in rust playground:
```rust
fn main() {
let a = f32::NAN;
let b = f32::NAN;
println!("a == b: {}", a.to_bits() == b.to_bits());
}
```
Output:
```
a == b: true
```
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