Re: pg_trgm comparison bug on cross-architecture replication due to different char implementation - Mailing list pgsql-hackers

Masahiko Sawada <sawada.mshk@gmail.com> writes:
> On Tue, Apr 23, 2024 at 11:57 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Reject as not a bug.  Discourage people from thinking that physical
>> replication will work across architectures.

> While cross-arch physical replication is not supported, I think having
> architecture dependent differences is not good and It's legitimate to
> fix it. FYI the 'char' data type comparison is done as though char is
> unsigned. I've attached a small patch to fix it. What do you think?

I think this will break existing indexes that are working fine.
Yeah, it would have been better to avoid the difference, but
it's too late now.

            regards, tom lane