Re: Proposal: Removing 32 bit support starting from PG17++

Thomas Munro <thomas.munro@gmail.com>

From: Thomas Munro <thomas.munro@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Andres Freund <andres@anarazel.de>, Noah Misch <noah@leadboat.com>, Hans Buschmann <buschmann@nidsa.net>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2023-05-25T00:09:36Z
Lists: pgsql-hackers
On Thu, May 25, 2023 at 11:51 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Andres Freund <andres@anarazel.de> writes:
> > On 2023-05-24 17:44:36 -0400, Tom Lane wrote:
> > So it looks like the only certain problem is PA-RISC - which I personally
> > wouldn't include in "relevant" :), with some evaluation needed for 32bit mips
> > and old arms.
>
> You'll no doubt be glad to hear that I'll be retiring chickadee
> in the very near future.

. o O { I guess chickadee might have been OK anyway, along with e.g.
antique low-end SGI MIPS gear etc of "workstation"/"desktop" form that
any collector is likely to have still running, because they only had
one CPU (unlike their Vogon-spaceship-sized siblings).  As long as
they had 64 bit load/store instructions, those couldn't be 'divided'
by an interrupt, so scheduler switches shouldn't be able to tear them,
AFAIK? }