On Mon, 2021-05-03 at 10:38 -0700, Peter Geoghegan wrote:
> I don't think it's much good to just do that. You probably need a
> full
> 64-bits for something like a column store. But that's all you need.
I would definitely like that for citus columnar, and it would
definitely make it easier to manage the address space, but I won't
demand it today. 48 bits is a workable tuple address space for many
purposes, especially when you factor in logical partitioning.
I will be dealing with gaps though, so wasting 5 bits of address space
(2^16 / MaxOffsetNumber = 32) to bring it down to 43 bits is not great.
Regards,
Jeff Davis