askoa commented on code in PR #3662:
URL: https://github.com/apache/arrow-rs/pull/3662#discussion_r1102128006
##########
arrow-array/src/array/run_array.rs:
##########
@@ -204,12 +222,36 @@ impl<R: RunEndIndexType> RunArray<R> {
.unwrap()
});
+ // Return early if all the logical indices cannot be converted to
physical indices.
+ let largest_logical_index =
+ logical_indices[*ordered_indices.last().unwrap()].as_usize();
+ if largest_logical_index >= self.len() {
+ return Err(ArrowError::InvalidArgumentError(format!(
+ "Cannot convert all logical indices to physical indices. The
logical index cannot be converted is {largest_logical_index}.",
+ )));
+ }
+
+ // Skip some physical indices based on offset.
+ let skip_value = if self.offset() > 0 {
+ Self::get_physical_index_from_run_ends_array(self.run_ends(),
self.offset())
Review Comment:
Yes. If the `ArrayData` is validated then there should not be any issues.
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