Re: abstime bug - Mailing list pgsql-bugs

From Bruce Momjian
Subject Re: abstime bug
Date
Msg-id 200507221444.j6MEi3M11313@candle.pha.pa.us
Whole thread Raw
In response to Re: abstime bug  (Michael Fuhr <mike@fuhr.org>)
Responses Re: abstime bug  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-bugs
Michael Fuhr wrote:
> On Fri, Jul 22, 2005 at 10:15:40AM -0400, Bruce Momjian wrote:
> >
> > Current CVS shows:
> >
> >     test=> select '1901/12/14 1:00'::abstime;
> >             abstime
> >     ------------------------
> >      1901-12-14 01:00:00-05
> >     (1 row)
>
> Depends on your timezone:
>
> SET TimeZone TO 'US/Eastern';
> SELECT '1901/12/14 1:00'::abstime;
>         abstime
> ------------------------
>  1901-12-14 01:00:00-05
> (1 row)
>
> SET TimeZone TO 'Asia/Hong_Kong';
> SELECT '1901/12/14 1:00'::abstime;
>         abstime
> ------------------------
>  2038-01-19 07:51:40+08
> (1 row)
>
> I'd guess this is due to the 32-bitness of abstime.  Those timestamps
> are around the min and max values of a 32-bit timestamp based on the
> traditional Unix epoch.

Yea, I see the same thing in 8.0.X.  I don't think abstime should be
used in that date range, timestamp is a better solution.

--
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  pgman@candle.pha.pa.us               |  (610) 359-1001
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