Re: BUG #2366: Timestamptz data type is inaccurate

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Christian Holtje <christian(dot)holtje(at)timesys(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #2366: Timestamptz data type is inaccurate
Date: 2006-03-31 23:43:18
Message-ID: 20060331234318.GC18914@surnet.cl
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Christian Holtje wrote:

> I don't know what's going on, but basically, for some dates timestamptz is
> loosing parts of the date/time (like the timezone, etc.)
>
> db=# select '2076-03-30 19:57:05-05'::timestamptz;
> timestamptz
> ---------------------
> 2076-03-31 00:57:05
> (1 row)

Timestamp support went under a big rewrite for 8.0. The problem doesn't
present there. I suggest you upgrade; the code in 7.4 is probably buggy
enough that it would be a difficult proposition to fix the bug there.

That said, maybe you could try with the --enable-integer-datetimes flag
to configure -- if you are lucky the bugs are not in that code path.
But I wouldn't count on it.

(I can reproduce the bug here; my 7.4 build has floating point
datetimes.)

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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