ritchie46 commented on a change in pull request #9402:
URL: https://github.com/apache/arrow/pull/9402#discussion_r570766453
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File path: rust/arrow/src/compute/kernels/cast.rs
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@@ -1175,6 +1254,76 @@ where
Ok(Arc::new(b.finish()))
}
+/// Cast the container type of List/Largelist array but not the inner types.
+/// This function can leave the value data intact and only has to cast the
offset dtypes.
+fn cast_list_container<OffsetSizeFrom, OffsetSizeTo>(array: &ArrayRef) ->
Result<ArrayRef>
Review comment:
:+1:
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