tustvold commented on code in PR #3667:
URL: https://github.com/apache/arrow-rs/pull/3667#discussion_r1097205458
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arrow-cast/src/cast.rs:
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@@ -609,7 +609,7 @@ pub fn cast_with_options(
// clone array if types are the same
if from_type == to_type {
- return Ok(array.clone());
+ return Ok(make_array(array.data().clone()));
Review Comment:
This is the only "downside", in practice cloning ArrayData is relied on to
be fast, it underpins array slicing, and so I think this is fine
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