rdblue commented on code in PR #11324:
URL: https://github.com/apache/iceberg/pull/11324#discussion_r1833006470
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api/src/main/java/org/apache/iceberg/types/Types.java:
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@@ -412,6 +413,29 @@ public String toString() {
}
}
+ public static class VariantType extends PrimitiveType {
Review Comment:
I don't think that variant should be either a primitive type or a nested
type. There are at least a few places where making variant a primitive creates
problems. For example, `Schema` checks that a field is a primitive to allow it
as an identifier field and the `Identity` transform will bind to a type if it
is a primitive. There are also places that check whether a type is nested and
make decisions based on whether there are sub-fields.
Neither one of those seems appropriate to me so I'd suggest making this
extend just `Type`. Then we can adjust the logic in those places without
assuming either one and potentially introducing bugs when the assumption is bad.
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