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From: Christoph Haller <ch@rodos.fzk.de>
To: Jerome Alet <alet@librelogiciel.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: string to date conversion
Date: Fri, 22 Apr 2005 11:21:26 +0200
Message-ID: <4268C216.8BC93C10@rodos.fzk.de> (raw)
References: <20050422084301.GB12176@mail.librelogiciel.com>

Jerome Alet wrote:
> 
> Hi,
> 
> I'm working on an existing Pg database which, please don't ask why,
> stores dates as varchar attributes in the form 'YYYY/MM/DD'
> 
> I'm not allowed to modify the tables to use 'timestamp' instead,
> so I'd like to convert on the fly when retrieving datas with
> select.
> 
> When I do :
> 
>         select mydatefield::timestamp from mytable;
> 
> There's an error saying that converting from varchar to date is
> not possible
> 
> How can I do this ?
> 
> Thanks in advance
> 
> Jerome Alet
> 
select version();
                                      
version                                       
-------------------------------------------------------------------------------------
 PostgreSQL 7.4.5 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.3.1
(SuSE Linux)
(1 row)

select '2005/04/22'::text::timestamp ;
      timestamp      
---------------------
 2005-04-22 00:00:00
(1 row)

works for me. 
Regards, Christoph



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