Re: [HACKERS] Request for supported platforms

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Dave Page" <dpage(at)vale-housing(dot)co(dot)uk>
Cc: "Jason Tishler" <jason(at)tishler(dot)net>, "Bruce Momjian" <pgman(at)candle(dot)pha(dot)pa(dot)us>, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org>, "Thomas Lockhart" <lockhart(at)fourpalms(dot)org>, "Pgsql-Cygwin" <pgsql-cygwin(at)postgresql(dot)org>
Subject: Re: [HACKERS] Request for supported platforms
Date: 2002-10-28 18:22:00
Message-ID: 15557.1035829320@sss.pgh.pa.us
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"Dave Page" <dpage(at)vale-housing(dot)co(dot)uk> writes:
>> Horology failures are normal for a day or so on either side
>> of a DST change --- see the "regression tests interpretation"
>> docs. I have no time right now to examine the other diffs.

> The docs say:

> Some of the queries in the timestamp test will fail if you run the test
> on
> the day of a daylight-savings time changeover, or the day before or
> after
> one.

> Clocks changed at midnight Saturday so I figured a Monday morning run
> should be OK. Do they actually change on Sunday at 00:00:00 I wonder?
> I'll try again tomorrow.

In the US, DST changes occur at 02:00 Sunday, so the affected queries
actually fail starting at 00:00 Sunday and ending 00:00 Tuesday ---
but that's local time in PST8PDT. The docs are vague because your local
time might vary considerably from that ...

regards, tom lane

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