Re: Tom Lane 2019-06-11 <24452.1560285699@sss.pgh.pa.us>
> The only way I can get it to pick "Etc/UCT" is if that's what I put
> into /etc/localtime. (In which case I maintain that that's not a bug,
> or at least not our bug.)
Did you try a symlink or a plain file for /etc/localtime?
> So I'm still mystified by Christoph's report, and am forced to suspect
> pilot error -- specifically, /etc/localtime not containing what he said.
On Debian unstable, deleting /etc/timezone, $TZ not set, and with this symlink:
lrwxrwxrwx 1 root root 27 Mär 28 14:49 /etc/localtime -> /usr/share/zoneinfo/Etc/UTC
/usr/lib/postgresql/11/bin/initdb -D pgdata
$ grep timezone pgdata/postgresql.conf
log_timezone = 'UCT'
timezone = 'UCT'
/usr/lib/postgresql/12/bin/initdb -D pgdata
$ grep timezone pgdata/postgresql.conf
log_timezone = 'Etc/UTC'
timezone = 'Etc/UTC'
Same behavior on Debian Stretch (stable):
lrwxrwxrwx 1 root root 27 Mai 7 11:14 /etc/localtime -> /usr/share/zoneinfo/Etc/UTC
$ grep timezone pgdata/postgresql.conf
log_timezone = 'UCT'
timezone = 'UCT'
$ grep timezone pgdata/postgresql.conf
log_timezone = 'Etc/UTC'
timezone = 'Etc/UTC'
> Anyway, moving on to the question of what should we do about this,
> I don't really have anything better to offer than back-patching 23bd3cec6.
The PG12 behavior seems sane, so +1.
Christoph
