Re: Tab completion regression test failed on illumos - Mailing list pgsql-hackers

On Fri, Nov 3, 2023 at 2:22 PM Thomas Munro <thomas.munro@gmail.com> wrote:
> On Fri, Nov 3, 2023 at 3:42 AM Japin Li <japinli@hotmail.com> wrote:
> > I think this might be a bug comes from Illumos pseudo-tty. I can reproduce
> > this by using pseudo-tty on Illumos.
>
> I don't know but my guess is that this has to do with termios defaults
> being different.  From a quick look at 'man termios', perhaps TABDLY
> is set to expand tabs to spaces?  Can you fix it by tweaking the flags
> in src/common/sprompt.c?

Argh, sorry that's completely the wrong end.  I suppose that sort of
thing would have to happen in IPC::Run.  I wonder what would happen if
IPC::Run called  ->set_raw() on the IO::Pty object it constructs, or
failing that, if IO::Stty can be used to mess with the relevant
settings.