scovich commented on code in PR #520:
URL: https://github.com/apache/parquet-format/pull/520#discussion_r2300783535
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VariantShredding.md:
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@@ -192,31 +202,31 @@ optional group event (VARIANT) {
The group for each named field must use repetition level `required`.
-A field's `value` and `typed_value` are set to null (missing) to indicate that
the field does not exist in the variant.
-To encode a field that is present with a null value, the `value` must contain
a Variant null: basic type 0 (primitive) and physical type 0 (null).
+A field's `value` and `typed_value` are both missing to indicate that the
field does not exist in the variant.
+To encode a field that is present with a SQL NULL value, the `value` must
contain a Variant null: basic type 0 (primitive) and physical type 0 (null).
Review Comment:
Re-examining this, I'm pretty sure the first references really is SQL NULL
(both value and typed value are just plain missing), but that the second is
indeed `null`?
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