Re: BUG #1993: Adding/subtracting negative time intervals

On Tue, 25 Oct 2005 08:51:59 +1000, Russell Smith <mr-russ(at)pws(dot)com(dot)au> wrote:
> Nicholas wrote:
> > postgres=# SELECT NOW()-interval '1 week';
> > ?column?
> > -------------------------------
> > 2005-10-17 08:52:37.355219+10
> > (1 row)
> >
> > postgres=# SELECT NOW()-interval '-1 week';
> > ?column?
> > -------------------------------
> > 2005-10-31 08:52:39.021583+11
>
> Looks to mee like Daylight Savings has conveniently started.

But the elapsed time for those results is only 6 days, 23 hours.

That's changed since v7.4.7

template1=# select now();
now
-------------------------------
2005-10-25 12:40:22.699545+10
(1 row)

template1=# select now() + '1 week'::interval;
?column?
------------------------------
2005-11-01 13:40:33.85492+11
(1 row)

template1=# select now() - '-1 week'::interval;
?column?
-------------------------------
2005-11-01 13:40:46.707656+11
(1 row)

template1=# select version();
version

--------------------------------------------------------------------------------
-------------------------
PostgreSQL 7.4.7 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2.2 20030222
(Red Hat Linux 3.2.2-5)
(1 row)

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