From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: timezone GUC |
Date: | 2011-05-23 03:09:47 |
Message-ID: | BANLkTi=ne+-Bdi16xJwKjsdtm6augCbvxQ@mail.gmail.com |
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Lists: | pgsql-hackers |
On Sun, May 22, 2011 at 10:24 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> On Sun, May 22, 2011 at 9:54 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> But also, 99.999% of the time
>>> it would be completely wasted effort because the DBA wouldn't remove the
>>> postgresql.conf setting at all, ever.
>
>> Well, by that argument, we ought not to worry about masterminding what
>> happens if the DBA does do such a thing -- just run the whole process
>> and damn the torpedoes. If it causes a brief database stall, at least
>> they'll get the correct behavior.
>
> Yeah, maybe. But I don't especially want to document "If you remove a
> pre-existing setting of TimeZone from postgresql.conf, expect your
> database to lock up hard for multiple seconds" ... and I think we
> couldn't responsibly avoid mentioning it. At the moment that disclaimer
> reads more like "If you remove a pre-existing setting of TimeZone from
> postgresql.conf, the database will fall back to a default that might not
> be what you were expecting". Is A really better than B?
Well, I'm not entirely sure, but I lean toward yes. Anyone else have
an opinion?
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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