Re: Default timezone changes in 9.1

Hi,

On 2012-12-15 22:07:32 -0500, Terence Ferraro wrote:
> We recently began upgrading our clients' servers from 9.0 -> 9.2. After a
> few deployments and a little digging we noticed that 9.0 -> 9.1 broke the
> use of no timezone set within postgresql.conf. That is, not setting the
> option was now defaulting to GMT instead of the system timezone.
> Unfortunately, this put quite a damper on our "one configuration file to
> rule them all" setup across servers located throughout various time zones.
>
> I obtained the commit ca4af308c32d03db5fbacb54d6e583ceb904f268 from the git
> repository and have reversed it against 9.2. Though it didn't apply as
> smoothly as initially hoped; applying a few of the failed hunks manually
> allowed me to successfully compile 9.2.1 with these changes reversed.
>
> After some (light) testing, the previous functionality of the system
> choosing the timezone at runtime seems to be functional again.

Setting the timezone to 'localtime' seems to work as well, even without
a patch. I haven't found any documentation about it and I am not
completely sure about the semantics, but it looks ok on a first glance.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services