From: Tom Lane <tgl@sss.pgh.pa.us>
To: John DeSoi <desoi@pgedit.com>
Cc: Walker, Jed S <Jed_Walker@cable.comcast.com>
Cc: pgsql-novice@postgresql.org
Subject: Re: Make year 01/01/0001 but leave timestamp alone
Date: Tue, 02 Aug 2005 16:57:09 -0400
Message-ID: <24440.1123016229@sss.pgh.pa.us> (raw)
In-Reply-To: <C4C31703-544A-45D1-999A-46C7A4BF4B9D@pgedit.com>
References: <4A59B6AA01F1874283EA66C976ED51FC4663BB@COENGEXCMB01.cable.comcast.com>
<C4C31703-544A-45D1-999A-46C7A4BF4B9D@pgedit.com>
John DeSoi <desoi@pgedit.com> writes:
> On Aug 2, 2005, at 11:49 AM, Walker, Jed S wrote:
>> I have a situation where we have a timestamp column but in special
>> cases we want to set the date to '01/01/0001' and leave the
>> timestamp alone. For example, '11/04/2005 10:30:05' would become
>> '01/01/0001 10:30:05'. I've been going through the various date
>> time functions but don't see a simple way to do this. Can someone
>> help?
> select ('0001-01-01 ' || now()::time::text)::timestamp;
This textual pasting makes me itch ... try something like
select '0001-01-01'::timestamp + now()::time;
?column?
----------------------------
0001-01-01 16:56:16.313866
(1 row)
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, desoi@pgedit.com, Jed_Walker@cable.comcast.com, pgsql-novice@postgresql.org
Subject: Re: Make year 01/01/0001 but leave timestamp alone
In-Reply-To: <24440.1123016229@sss.pgh.pa.us>
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