Re: Some timestamp problems

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
Subject: Re: Some timestamp problems
Date: 2002-08-29 21:25:55
Message-ID: 3D6E9163.6AB9DD4B@nsd.ca
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I agree with you . My first reply was just in jest. :)

Vilson farias wrote:
>
> 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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