| From: | Alex Pilosov <alex(at)pilosoft(dot)com> |
|---|---|
| To: | Lincoln Yeoh <lyeoh(at)pop(dot)jaring(dot)my> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Getting interval in seconds? |
| Date: | 2001-06-11 04:01:04 |
| Message-ID: | Pine.BSO.4.10.10106102359150.17529-100000@spider.pilosoft.com |
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| Thread: | |
| Lists: | pgsql-general |
On Sun, 10 Jun 2001, Lincoln Yeoh wrote:
> Thanks!
>
> Which is better/faster?
>
> select date_part('epoch',('now'::timestamp - somedate)::interval) from
> sometable;
>
> Or
>
> select extract (epoch from interval ('now'::timestamp - somedate)) from
> sometable;
Speedwise, I think its the same. _maybe_ the latter is faster, but I
wouldn't bet on it.
> Should I be using 'now'::timestamp or some function form of it?
No difference whether you use now() or 'now'::timestamp.
-alex
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