2. As I remember from verbal discussion, we've decided to do not storePlease, pay attention that we don't allocate offset_slot for intermediate node.
offsets for intermediate nodes. It is too expensive. You actually purpose
to store an offset for each tuple field, even non-indexed. In such a case
the field_map would become bigger than the tuple payload. Field_map is
very expensive storage and should not store non-needed offsets. So you should
not have an offset on [name], on [birthday]. Only on [first] and [last].