etseidl commented on code in PR #7687:
URL: https://github.com/apache/arrow-rs/pull/7687#discussion_r2167430766
##########
parquet/src/data_type.rs:
##########
@@ -132,6 +132,23 @@ impl Int96 {
}
}
+impl PartialOrd for Int96 {
+ fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+ Some(self.cmp(other))
+ }
+}
+
+impl Ord for Int96 {
+ fn cmp(&self, other: &Self) -> Ordering {
+ let (self_days, self_nanos) = self.data_as_days_and_nanos();
+ let (other_days, other_nanos) = other.data_as_days_and_nanos();
+
+ match self_days.cmp(&other_days) {
Review Comment:
Micro-optimization: we could add `get_days` and `get_nanos` to `Int96`, and
then change this to
```rust
match self.get_days().cmp(&other.get_days()) {
Ordering::Equal => self.get_nanos().cmp(&other.get_nanos()),
ord => ord,
}
```
That would save a few instructions when the days are not equal.
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