Andres Freund <andres@anarazel.de> writes:
> On 2020-04-02 14:33:18 -0300, Alvaro Herrera wrote:
>> Hmm, for some reason I had it in my head that we would make these use an
>> "epoch/val" output format rather than raw uint64 values.
> Why would we do that? IMO the goal should be to reduce awareness of the
> 32bitness of normal xids from as many places as possible, and treat them
> as an internal space optimization.
If they're just int64s then you don't need special functions to do
things like finding the min or max in a column of them.
regards, tom lane
