Another scenario I would be concerned about is a table that contains only
UnknownType top-level fields. What will happen in such a scenario? Will the
Parquet format tolerate zero-column files? I think it's likely that even if
Parquet-java supports this, it might be an untested and unsupported corne
On Sat, Jul 26, 2025 at 6:09 PM Kevin Liu wrote:
> > My initial idea was to disallow the use of UnknownType as the element
> in ListType and not allow the UnknownType as either a Key or Value of a
> MapType. Any thoughts or concerns?
>
> That makes sense. I would also include `StructType` here to
> My initial idea was to disallow the use of UnknownType as the element in
ListType and not allow the UnknownType as either a Key or Value of a
MapType. Any thoughts or concerns?
That makes sense. I would also include `StructType` here too. `StructType`
is another "complex type" (extends NestedTy
