From: | Ryan Mooney <ryan(at)pcslink(dot)com> |
---|---|
To: | Gonçalo Marrafa <gjm(at)uevora(dot)pt> |
Cc: | L J Bayuk <ljb220(at)mindspring(dot)com>, pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: Date/Time atributes and binary cursors |
Date: | 2004-04-06 18:07:15 |
Message-ID: | 20040406180715.GA82692@pcslink.com |
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Lists: | pgsql-interfaces |
select extract(epoch from timestamp 'oct 1 2004 10:11:17');
On Tue, Apr 06, 2004 at 10:04:03AM +0100, Gonçalo Marrafa wrote:
> Thanks.
>
> Do Postgres/libpq have functions for converting between Unix/Postgres date/time representations or do i have to do it by hand?
>
> Thanks again.
>
>
> > A date is returned as a 4-byte big-endian integer representing the number
> > of days since POSTGRES_EPOCH_DATE.
> > A timestamp is returned as an 8-byte big-endian double precision number of
> > seconds since POSTGRES_EPOCH_DATE.
> > A time is returned as an 8-byte big-endian double precision number of
> > seconds since midnight.
> > POSTGRES_EPOCH_DATE is January 1, 2000 (2000-01-01).
> >
> > Note that binary cursor results are in network data order (big-endian)
> > starting with PostgreSQL-7.4 (versus native server order pre-7.4). This
> > means they need to be byte-swapped if your client runs on an Intel-type
> > little-endian system.
> >
>
>
> --
> Gonçalo Marrafa <gjm(at)uevora(dot)pt>
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