Re: Conversion

From: "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
To: "Alexander M(dot) Pravking" <fduch(at)antar(dot)bryansk(dot)ru>
Cc: "Lonh SENG" <slonh(at)camgsm(dot)com(dot)kh>, <pgsql-sql(at)postgresql(dot)org>
Subject: Re: Conversion
Date: 2002-08-13 07:14:38
Message-ID: GNELIHDDFBOCMGBFGEFOMEKKCDAA.chriskl@familyhealth.com.au
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> On Tue, Aug 13, 2002 at 11:32:25AM +0800, Christopher Kings-Lynne wrote:
> > Is the int4 a UNIX epoch? ie. seconds since 1970?
> >
> > If so, then this will generally work:
> >
> > SELECT CAST(int4field AS abstime);
> >
> > or
> >
> > SELECT int4field::abstime;
>
> http://www.postgresql.org/idocs/index.php?datatype-datetime.html says:
>
> The types abstime and reltime are lower precision types which are used
> internally. You are discouraged from using any of these types in new
> applications and are encouraged to move any old ones over when
> appropriate. Any or all of these internal types might disappear in a
> future release.

Yes, but in absence of:

SELECT EXTRACT(TIMESTAMP FROM EPOCH '12341234234');

(Hint Hint Thomas!!!)

It's all he can do. I suggest using the syntax above to convert his integer
column to a timestamp column.

Chris

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