Re: pointer to feature comparisons, please
От | Ron Johnson |
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Тема | Re: pointer to feature comparisons, please |
Дата | |
Msg-id | 46706FD4.5090401@cox.net обсуждение исходный текст |
Ответ на | Re: pointer to feature comparisons, please (PFC <lists@peufeu.com>) |
Ответы |
Re: pointer to feature comparisons, please
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Список | pgsql-general |
On 06/13/07 17:23, PFC wrote: > On Thu, 14 Jun 2007 00:09:20 +0200, Ron Johnson <ron.l.johnson@cox.net> > wrote: > >> On 06/13/07 16:59, PFC wrote: >>>> Isn't it *supposed* to mis UNcommitted changes from other transactions? >>> Well, if the "uncommited change" is a DELETE of the row that >>> allowed the constraint check to pass, then when this delete is >>> commited, your data is no longer consistent. >> >> The DELETE should block, no? > > Why ? > > Foreign keys put an ON DELETE trigger on the referenced table Foreign keys that silently, automatic DELETE records? Did I read that correctly? > besides checking the referencing column on insert/update... If you just > implement a constraint, you only get half the functionality. But when I define a FK *constraint*, that's all I *want*! -- Ron Johnson, Jr. Jefferson LA USA Give a man a fish, and he eats for a day. Hit him with a fish, and he goes away for good!
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