liurenjie1024 commented on code in PR #1578:
URL: https://github.com/apache/iceberg-rust/pull/1578#discussion_r2258851352
##########
crates/iceberg/src/delete_vector.rs:
##########
@@ -43,6 +45,24 @@ impl DeleteVector {
self.inner.insert(pos)
}
+ /// Marks the given `positions` as deleted and returns the number of
elements appended.
+ ///
+ /// The input slice must be strictly ordered in ascending order, and every
value must be greater than all existing values already in the set.
+ ///
+ /// # Errors
+ ///
+ /// Returns an error if the precondition is not met.
+ #[allow(dead_code)]
+ pub fn insert_positions(&mut self, positions: &[u64]) -> Result<usize> {
+ if let Err(err) = self.inner.append(positions.iter().copied()) {
+ return Err(Error::new(
+ ErrorKind::PreconditionFailed,
+ format!("failed to marks rows as deleted because {:?}", err),
+ ));
+ }
+ Ok(positions.len())
Review Comment:
This is incorrect. Let's see the following case:
```rust
let dv = DeletionVector::default();
assert_eq(4, dv.insert(&[1, 2, 3, 5]));
assert_eq(dv.insert(&[3, 5, 6, 7]).is_err());
```
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