rok commented on code in PR #41299:
URL: https://github.com/apache/arrow/pull/41299#discussion_r1571356261
##########
docs/source/format/CanonicalExtensions.rst:
##########
@@ -251,6 +251,17 @@ Variable shape tensor
Values inside each **data** tensor element are stored in
row-major/C-contiguous
order according to the corresponding **shape**.
+UUID
+====
+
+* Extension name: `arrow.uuid`.
+
+* The storage type of the extension is ``FixedSizeBinary`` with a length of 16
bytes.
Review Comment:
I assumed `FixedSizeBinary` maps to a single physical type (fixed size
primitive). If this is ambiguous we should indeed specify (preferrably one)
physical type.
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