Re: Australian timezone configure option

Поиск
Список
Период
Сортировка
От Bruce Momjian
Тема Re: Australian timezone configure option
Дата
Msg-id 200106121652.f5CGqMZ20608@candle.pha.pa.us
обсуждение исходный текст
Ответ на Australian timezone configure option  (Chris Dunlop <chris@onthe.net.au>)
Список pgsql-patches
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > I found I didn't need to clear the date cache.
> >>
> >> Hmm, are you sure about that?  I'm not.
>
> > I checked and it caches a pointer to the struct, not the values
> > themselves, and we don't change the structure, just the secondary values
> > and not the key used by the bsearch.
>
> Now I'm going to object LOUDLY.  You cannot convince me that the above
> is a good implementation --- it's a complete crock, and will break the
> instant someone looks at it sidewise.
>
> My inclination would actually be to rip out the cache entirely.  bsearch
> in a table this size is not so expensive that we need to bypass it, nor
> is it apparent that we are going to see lots of successive lookups for
> the same keyword anyway.  How long has that cache been in there, and
> what was the motivation for adding it to begin with?

I see the CACHE coming in with:

    1.42         (thomas   16-Feb-00): #define USE_DATE_CACHE 1

--
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

В списке pgsql-patches по дате отправления:

Предыдущее
От: Peter Eisentraut
Дата:
Сообщение: Re: Patch to include PAM support...
Следующее
От: Bruce Momjian
Дата:
Сообщение: Re: Patch to include PAM support...