From: | Don Baccus <dhogaza(at)pacifier(dot)com> |
---|---|
To: | Karel Zak <zakkr(at)zf(dot)jcu(dot)cz>, pgsql-hackers <pgsql-hackers(at)postgreSQL(dot)org> |
Subject: | Re: day of week |
Date: | 2000-06-05 21:03:46 |
Message-ID: | 3.0.1.32.20000605140346.010600a0@mail.pacifier.com |
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Lists: | pgsql-hackers |
At 10:52 PM 6/5/00 +0200, Karel Zak wrote:
>
>
>We have for same questions different answers now:
>
>(DAY OF WEEK)
>
>test=# select date_part('dow', now());
> date_part
>-----------
> 1
>(1 row)
>
>test=# select to_char(now(), 'D');
> to_char
>---------
> 2
>(1 row)
>
>
>For to_char() I use POSIX definition of 'tm' where week start on Sunday.
>
>Is it right? (Exuse me, I see archive, but without some effect...).
>
>Or we will support both styles?
to_char() gives the same answer with Oracle, as it is supposed to
and as you intended it to.
I personally don't find it all that disconcerting that the two give
different answers. Change the old, PG way and lots of old code
is likely to break. Change to_char() and the desired compatibility
with Oracle breaks.
I think it boils down to needing good documentation ???
- Don Baccus, Portland OR <dhogaza(at)pacifier(dot)com>
Nature photos, on-line guides, Pacific Northwest
Rare Bird Alert Service and other goodies at
http://donb.photo.net.
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