Re: Interval Format

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От Ron Mayer
Тема Re: Interval Format
Дата
Msg-id 492766DF.2050902@cheapcomplexdevices.com
обсуждение исходный текст
Ответ на Interval Format  (Zagato <zagato.gekko@gmail.com>)
Ответы Re: Interval Format  (Zagato <zagato.gekko@gmail.com>)
Список pgsql-general
Zagato wrote:
> I have som SQL that in 8.0.3 do:
> # SELECT '32 hours'::INTERVAL;
>     interval
> -----------------
>  @ 1 day 8 hours
>
> And in 8.3.5 do:
> seg_veh2=# SELECT '@ 32 hours'::INTERVAL;
>   interval
> ------------
>  @ 32 hours
>
> Why i unable to get my old style of interval, i really need to see the
> day part.... im using datestyle german in both.... im try with "SET
> IntervalStyle TO..." but i get this error:

Even IntervalStyle won't help you here; since recent releases consider
the values "1 day 8 hours" as distinct from "32 hours" (because
they are at certain times of the year in some timezones
where days are 25 hours, etc).

> So.. how can i recover my "days" part...

If you tell it what time of year you are thinking of this trick can work:

dish=# set datestyle to german;
SET
dish=# select  '2001-01-01'::timestamp + (interval '32 hours') - '2001-01-01'::timestamp;
     ?column?
-----------------
  @ 1 day 8 hours
(1 row)


>
> Any help it appreciate... thanks :D


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