Re: qsort again (was Re: [PERFORM] Strange Create Index behaviour)

Поиск
Список
Период
Сортировка
Искать
От
Tom Lane
Тема
Re: qsort again (was Re: [PERFORM] Strange Create Index behaviour)
Дата
Msg-id
21059.1140048286@sss.pgh.pa.us
Ответ на
Список
Дерево обсуждения
Re: qsort again (was Re: [PERFORM] Strange Create Index behaviour) "Qingqing Zhou" <zhouqq@cs.toronto.edu>
Gary Doades  writes:
> Is this likely to hit me in a random fashion during normal operation, 
> joins, sorts, order by for example?

Yup, anytime you're passing data with that kind of distribution
through a sort.

> So the options are:
> 1) Fix the included qsort.c code and use that
> 2) Get FreeBSD to fix their qsort code
> 3) Both

> I guess that 1 is the real solution in case anyone else's qsort is 
> broken in the same way. Then at least you *could* use it all the time :)

It's reasonable to assume that most of the *BSDen have basically the
same qsort code.  Ours claims to have come from NetBSD sources, but
I don't doubt that they all trace back to a common ancestor.

			regards, tom lane
В списке pgsql-hackers по дате отправления
От: Gary Doades
Дата:
От: Tom Lane
Дата:
FAQ