From: | "Gene Sokolov" <hook(at)aktrad(dot)ru> |
---|---|
To: | <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: [HACKERS] Need confirmation of "Posix time standard" on FreeBSD |
Date: | 2000-02-07 16:07:12 |
Message-ID: | 168201bf7185$65338ed0$0d8cdac3@aktrad.ru |
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Lists: | pgsql-hackers |
From: "Malcolm Beattie" <mbeattie(at)sable(dot)ox(dot)ac(dot)uk>
> Thomas Lockhart writes:
> > Before committing this (or at least before completing our upcoming
> > beta period), I'd like confirmation that this actually matches
> > expected behavior for a machine implementing a "GMT+0800" (or similar)
> > time zone, and that it is indeed a Posix standard? Anyone??
>
> I can confirm that it is a POSIX standard. Section 8.1.1 "Extensions
> to Time Functions" of POSIX 1003.1-1988 says TZ can be of the form
> :characters
> for implementation-defined behaviour or else
> std offset [dst [offset][,start[/time],end[/time]]]
It probably won't affect anything, but some implementations (FreeBSD most
notably) have a bug in parsing TZ light savings string. The M notation gives
one day off for switching to/from light savings. Actually, it incorrectly
assumes Sunday as 0 for Zeller Congruence when it's Saturday.
Gene Sokolov.
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