| From: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com> |
|---|---|
| To: | Jan Wieck <JanWieck(at)Yahoo(dot)com> |
| Cc: | Brendan Jurd <blakjak(at)blakjak(dot)sytes(dot)net>, pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Inheritance and foreign keys |
| Date: | 2003-12-09 16:30:38 |
| Message-ID: | 20031209081755.X56823@megazone.bigpanda.com |
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| Thread: | |
| Lists: | 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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