| From: | Karel Zak <zakkr(at)zf(dot)jcu(dot)cz> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Dann Corbit <DCorbit(at)connx(dot)com>, Kurt Roeckx <Q(at)ping(dot)be>, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org> |
| Subject: | Re: [HACKERS] Dates BC. |
| Date: | 2004-03-30 07:19:15 |
| Message-ID: | 20040330071914.GA17619@zf.jcu.cz |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-patches |
On Mon, Mar 29, 2004 at 03:37:07PM -0500, Bruce Momjian wrote:
> Karel Zak wrote:
> > On Fri, Dec 19, 2003 at 01:12:08AM -0800, Dann Corbit wrote:
> > > There is no zero calendar year. The first year of Anno Domini is 1. It's ordinal, not cardinal.
> >
> > I agree. But the follow quoted code is not use in date_part() there
> > Kurt found bug. It's used in to_timestamp() _only_, and it works,
> > because tm2timestamp() and date2j() work with zero year.
>
> I have also add a doc mention to my patch that mentions that there is no
> 0 AD, and therefore subtraction of BC years from AD years must be done
> with caution.
The patch seems good for me. Thanks.
Karel
--
Karel Zak <zakkr(at)zf(dot)jcu(dot)cz>
http://home.zf.jcu.cz/~zakkr/
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