From: Tom Lane <tgl@sss.pgh.pa.us>
To: Christoph Berg <myon@debian.org>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Subject: Re: UCT (Re: pgsql: Update time zone data files to tzdata release 2019a.)
Date: Fri, 14 Jun 2019 09:11:15 -0400
Message-ID: <26948.1560517875@sss.pgh.pa.us> (raw)
In-Reply-To: <20190614095546.GA15107@msg.df7cb.de>
References: <E1hK8qL-0005yH-VX@gemulon.postgresql.org>
<20190604085735.GD24018@msg.df7cb.de>
<65800.1559662051@sss.pgh.pa.us>
<20190605084735.GC15829@msg.df7cb.de>
<24452.1560285699@sss.pgh.pa.us>
<20190614095546.GA15107@msg.df7cb.de>
Christoph Berg <myon@debian.org> writes:
> 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?
Symlink --- if it's a plain file, our code can't learn anything from it.
> 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'
That's what I'd expect. Do you think your upthread report of HEAD
picking "Etc/UCT" was a typo? Or maybe you actually had /etc/localtime
set that way?
>> 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.
OK, I'll make that happen.
regards, tom lane
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To: pgsql-committers@postgresql.org
Cc: tgl@sss.pgh.pa.us, myon@debian.org, pgsql-hackers@postgresql.org
Subject: Re: UCT (Re: pgsql: Update time zone data files to tzdata release 2019a.)
In-Reply-To: <26948.1560517875@sss.pgh.pa.us>
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