On Wed, 2002-10-30 at 15:10, Kirby Krueger wrote:
> A quick question:
>
> I have a field of type 'Timestamp'. I want to extract it in Unix Epoch Time
> format (ie, seconds since Jan 1, 1970.) What's the syntax to do this in
> Postgres?
SELECT EXTRACT(EPOCH FROM TIMESTAMP '2001-02-16 20:38:40');
or
SELECT date_part('epoch', TIMESTAMP '2001-02-16 20:38:40');
> And, similarly, when I'm done it'd be awfully convenient if I could stick
> that number right back into the timestamp field. Looking at the
> documentation, I bet it'll understand it, but does anyone know if there's
> any trick to doing this?
select ('1970-01-01'::timestamp) + 1010101010::interval;
Cheers,
Andrew.
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