Re: [PoC] Improve dead tuple storage for lazy vacuum

On Sun, Apr 7, 2024 at 9:08 AM John Naylor <johncnaylorls(at)gmail(dot)com> wrote:
> I've attached a mostly-polished update on runtime embeddable values,
> storing up to 3 offsets in the child pointer (1 on 32-bit platforms).

And...since there's a new bump context patch, I wanted to anticipate
squeezing an update on top of that, if that gets committed. 0004/5 are
the v6 bump context, and 0006 uses it for vacuum. The rest are to show
it works -- the expected.out changes make possible problems in CI
easier to see. The allocation size is 16 bytes, so this difference is
entirely due to lack of chunk header:

aset: 6619136
bump: 5047296

(Note: assert builds still have the chunk header for sanity checking,
so this was done in a more optimized build)