Re: Create Assertion -- Question from a newbie

Поиск
Список
Период
Сортировка
От Andrew Sullivan
Тема Re: Create Assertion -- Question from a newbie
Дата
Msg-id 20060828104603.GA2492@phlogiston.dyndns.org
обсуждение исходный текст
Ответ на Re: Create Assertion -- Question from a newbie  (Richard Broersma Jr <rabroersma@yahoo.com>)
Ответы Re: Create Assertion -- Question from a newbie  (Alvaro Herrera <alvherre@commandprompt.com>)
Список pgsql-sql
On Sun, Aug 27, 2006 at 07:39:49AM -0700, Richard Broersma Jr wrote:

> Ah, I see.  So the points is that checking the integrity between
> two complete data sets can become a preformace killer.

Not necessarily.  More exactly, building a support system that can
check such integrity in a completely general way, such that it could
be used for any arbitrary data, is a hard problem that might destroy
performance.  It's also a pretty exotic feature.  You might want to
ask on the -hackers list for more detail, though.

A


-- 
Andrew Sullivan  | ajs@crankycanuck.ca
This work was visionary and imaginative, and goes to show that visionary
and imaginative work need not end up well.     --Dennis Ritchie


В списке pgsql-sql по дате отправления:

Предыдущее
От: "Magnus Hagander"
Дата:
Сообщение: Re: hi ........i have a query related to MS reporting services
Следующее
От: Michael Fuhr
Дата:
Сообщение: Re: double precision vs. numeric