Re: Time delayed LR (WAS Re: logical replication restrictions)

Hi, Kuroda-san, Thanks for the detailed study.

At Tue, 31 Jan 2023 07:06:40 +0000, "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com> wrote in 
> Therefore, I think we can say that modern platforms that are supported by PostgreSQL define int as 32-bit.
> It satisfies the condition sizeof(int) <= sizeof(int32), so we can keep to use INT_MAX.

Yeah, I know that that's practically correct.  Just I wanted to make
clear is whether we (always) assume int == int32. I don't want to do
that just because that works. Even though we cannot be perfect, in
this particular case the destination space is explicitly made as
int32.

It's a similar discussion to the recent commit 3b4ac33254. We choosed
to use the "correct" symbols refusing to employ an implicit assumption
about the actual values.  (In that sense, it is a compromize to assume
int32 being narrower than int is a premise, but the code will get
uselessly complex without that assumption:p)

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center