pitrou commented on code in PR #13364:
URL: https://github.com/apache/arrow/pull/13364#discussion_r896661638
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cpp/src/arrow/type.h:
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@@ -174,6 +175,25 @@ class ARROW_EXPORT DataType : public
detail::Fingerprintable {
/// \brief Return the type category of the storage type
virtual Type::type storage_id() const { return id_; }
+ /// \brief Returns the type's fixed byte width, if any. Returns -1
+ /// for non-fixed-width types, and should only be used for
+ /// subclasses of FixedWidthType
+ virtual int32_t byte_width() const {
Review Comment:
This method doesn't need to be virtual, does it?
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