Markus Schaber <schabi@logix-tt.com> writes:
> There's another disadvantage of always copying 64 bytes:
> It may be that the 64-byte range crosses a page boundary. Now guess what
> happens when this next page is not mapped -> segfault.
Irrelevant, because in all interesting cases the Name field is part of a
larger record that would stretch into that other page anyway.
regards, tom lane