felipecrv commented on code in PR #36891:
URL: https://github.com/apache/arrow/pull/36891#discussion_r1434500792
##########
cpp/src/arrow/array/data.h:
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@@ -564,4 +565,128 @@ Result<std::shared_ptr<ArrayData>> GetArrayView(const
std::shared_ptr<ArrayData>
const
std::shared_ptr<DataType>& type);
} // namespace internal
+
+struct ARROW_EXPORT ConcreteArraySpan {
Review Comment:
I have concerns about adding a new class hierarchy to represent arrays, even
though I understand why these help here. Can it be moved to an `_internal.h`
header before we settle on the naming and design? cc @js8544
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