Re: Inheritance and foreign keys
От | Stephan Szabo |
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Тема | Re: Inheritance and foreign keys |
Дата | |
Msg-id | 20031209081755.X56823@megazone.bigpanda.com обсуждение исходный текст |
Ответ на | Re: Inheritance and foreign keys (Jan Wieck <JanWieck@Yahoo.com>) |
Ответы |
Re: Inheritance and foreign keys
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Список | pgsql-general |
On Tue, 9 Dec 2003, Jan Wieck wrote: > Stephan Szabo wrote: > > On Tue, 9 Dec 2003, Brendan Jurd wrote: > > > > As a note, there are workarounds for foreign keys that have been mentioned > > in the past. I'm not really sure anyone's post a real good workaround for > > unique though. > > Wouldn't a central table just holding the unique key values and > maintained by rules/triggers from all the tables in the inheritance tree > do the trick? > > That central table would be the referenced one too then, because it > contains the union of all keys. That's the general thing for the fks and I guess the insert into the central table should have the correct behavior in concurrent calls as well.
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