alamb commented on code in PR #4019:
URL: https://github.com/apache/arrow-rs/pull/4019#discussion_r1157741260
##########
arrow-select/src/concat.rs:
##########
@@ -81,7 +81,8 @@ pub fn concat(arrays: &[&dyn Array]) -> Result<ArrayRef,
ArrowError> {
_ => Capacities::Array(arrays.iter().map(|a| a.len()).sum()),
};
- let array_data = arrays.iter().map(|a| a.data()).collect::<Vec<_>>();
+ let array_data: Vec<_> = arrays.iter().map(|a|
a.to_data()).collect::<Vec<_>>();
+ let array_data = array_data.iter().collect();
Review Comment:
why do we need the second iter/collect?
Update: Because it wants a Vec of `&ArrayData`
##########
arrow-cast/src/cast.rs:
##########
@@ -4875,15 +4874,9 @@ mod tests {
assert_eq!(0, cast_array.null_count());
// offsets should be the same
- assert_eq!(
Review Comment:
Is the equality comparison still covered?
##########
arrow-select/src/interleave.rs:
##########
@@ -193,7 +193,8 @@ fn interleave_fallback(
values: &[&dyn Array],
indices: &[(usize, usize)],
) -> Result<ArrayRef, ArrowError> {
- let arrays: Vec<_> = values.iter().map(|x| x.data()).collect();
+ let arrays: Vec<_> = values.iter().map(|x| x.to_data()).collect();
+ let arrays: Vec<_> = arrays.iter().collect();
Review Comment:
We could potentially change the `MutableArrayData` constructor to take `impl
IntoIterator<Item = &'ArrayData>` but that seems like it just moves the copy
around.
##########
arrow-array/src/array/binary_array.rs:
##########
@@ -467,9 +467,6 @@ mod tests {
let list_array = GenericListArray::<O>::from(array_data2);
let binary_array2 = GenericBinaryArray::<O>::from(list_array);
- assert_eq!(2, binary_array2.data().buffers().len());
Review Comment:
This test is no longer needed because the ArrayData builder will check the
buffer count (is that correct)?
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