Re: Some timestamp problems

From: "Vilson farias" <vilson(dot)farias(at)digitro(dot)com(dot)br>
To: "Jean-Luc Lachance" <jllachan(at)nsd(dot)ca>
Cc: <pgsql-admin(at)postgresql(dot)org>
Subject: Re: Some timestamp problems
Date: 2002-08-29 20:59:15
Message-ID: 0ae901c24f9e$f014b070$98a0a8c0@dgtac
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But there are two kind of problems there. First related with big date
values. ok, bot big deal yet :), but the second is taking my attention : if
you put a time with 995 to 999 miliseconds, it's represented as 60seconds
instead of 59seconds and 995 to 999 miliseconds. I don't think it's alright,
because I've never seen a datetime with 60seconds value (60 seconds is
always the next minute, in my conception). I would like some light here, is
it just a psql problem to show datetime values or a internal datetime
storage problem?

New example:

bxs=# insert into test2 values(1, '2002-08-29 04:23:59.994');
INSERT 259868 1
bxs=# insert into test2 values(2, '2002-08-29 04:23:59.995');
INSERT 259869 1
bxs=# insert into test2 values(2, '2002-08-29 04:23:59.996');
INSERT 259870 1
bxs=# insert into test2 values(3, '2002-08-29 04:23:59.997');
INSERT 259871 1
bxs=# insert into test2 values(4, '2002-08-29 04:23:59.998');
INSERT 259872 1
bxs=# insert into test2 values(5, '2002-08-29 04:23:59.999');
INSERT 259873 1
bxs=# select * from test2;
x | apagar_menor_que
---+---------------------------
1 | 2002-08-29 04:23:59.99-03
2 | 2002-08-29 04:23:59.99-03
2 | 2002-08-29 04:23:60.00-03
3 | 2002-08-29 04:23:60.00-03
4 | 2002-08-29 04:23:60.00-03
5 | 2002-08-29 04:23:60.00-03
(6 rows)

Thanks in advance.

----- Original Message -----
From: "Jean-Luc Lachance" <jllachan(at)nsd(dot)ca>
To: "Vilson farias" <vilson(dot)farias(at)digitro(dot)com(dot)br>
Cc: <pgsql-admin(at)postgresql(dot)org>
Sent: Thursday, August 29, 2002 5:16 PM
Subject: Re: [ADMIN] Some timestamp problems

> I think there is plenty of time to address the Y10K problem... :)
>
> JLL
>
>
> Vilson farias wrote:
> >
> > Greetings,
> >
> > I found some strange behaviour in 7.1.2. Is it the same thing on 7.2.2
?
> >
> > I don't know if it's a psql bug, but I would like to report it anyway
> >
> > bxs=# \d test2
> > Table "test2"
> > Attribute | Type | Modifier
> > ------------------+--------------------------+----------
> > x | integer |
> > apagar_menor_que | timestamp with time zone |
> >
> > bxs=# insert into test2 values(1, '2111-10-01 04:23:59.999');
> > INSERT 259672 1
> > bxs=# insert into test2 values(2, '20001-10-01 04:23:50');
> > INSERT 259673 1
> > bxs=# insert into test2 values(3, '20001-10-01 04:23:59');
> > INSERT 259674 1
> > bxs=# insert into test2 values(4, '20001-10-01 04:23:59.99');
> > INSERT 259675 1
> > bxs=# insert into test2 values(5, '20001-10-01 04:23:59.999');
> > INSERT 259676 1
> > bxs=# insert into test2 values(6, '20001-10-01 04:23:59.998');
> > INSERT 259677 1
> > bxs=# SELECT * FROM test2;
> > x | apagar_menor_que
> > ---+------------------------
> > 1 | 2111-10-01 04:23:60.00
> > 2 | 20001-10-01 04:2350
> > 3 | 20001-10-01 04:2359
> > 4 | 20001-10-01 04:2359.99
> > 5 | 20001-10-01 04:2360.00
> > 6 | 20001-10-01 04:2360.00
> > (6 rows)
> >
> > bxs=#
> >
> > Best regards from Brazil,
> >
>
> --------------------------------------------------------------------------
--
> > ----
> > José Vilson de Mello de Farias
> > Software Engineer
> >
> > Dígitro Tecnologia Ltda - www.digitro.com.br
> > APC - Customer Oriented Applications
> > E-mail: vilson(dot)farias(at)digitro(dot)com(dot)br
> > Tel.: +55 48 281 7158
> > ICQ 11866179
> >
> > ---------------------------(end of broadcast)---------------------------
> > TIP 3: if posting/reading through Usenet, please send an appropriate
> > subscribe-nomail command to majordomo(at)postgresql(dot)org so that your
> > message can get through to the mailing list cleanly
>

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