Re: psql behavior change on upgrade from version 12.x to 13.1

On 09-Feb-2021, at 12:11, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:

Bryn Llewellyn <bryn(at)yugabyte(dot)com> writes:
> Here’s what I get when I do "otool -L /usr/local/bin/psql";

> /usr/local/bin/psql:
> /usr/local/lib/libpq.5.dylib (compatibility version 5.0.0, current version 5.13.0)
> /usr/local/opt/readline/lib/libreadline.8.dylib (compatibility version 8.0.0, current version 8.0.0)
> /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1292.0.0)

Right, so that's using a version of libreadline that's supplied by
Homebrew (the /usr/local/opt path is the giveaway on that).

I don't know whether these things represent an intentional change
of libreadline's behavior in Homebrew's build, or a bug, but in
either case you should take the issue to the Homebrew support forums.
If it's intentional, I imagine there's a way to get the old behavior
back.

Also, libreadline is fairly configurable, so maybe this boils down
to some unintentional change in your ~/.inputrc ?

regards, tom lane

—————

Thank you very much, Tom. It seems, then, that we have the “microscopic” explanation. I’ll have to to a fair bit of research to find out what to do to fix this problem.