Re: BUG #15120: use of getcwd(3)/chdir(2) during path resolution(exec.c)

Re: Andrew Gierth 2018-03-17 <87in9uhbco.fsf@news-spur.riddles.org.uk>
>  Tom> I think your example of "sudo /usr/bin/pg_ctl" is pretty
>  Tom> artificial; who'd bother spelling that out?
> 
> Not necessarily exactly like that, but we do occasionally get this issue
> coming up on the IRC channel.

It's absolutely not artificial. I can easily trigger the message from
my home directory:

$ chmod 700 .
$ sudo -u postgres psql
could not change directory to "/home/cbe": Permission denied

I never observed any negative side effects of it, though. (Except for
the obvious fact that "\i somethinginmyhome.sql" won't work.)

Christoph