Re: Sponsored development

On Tue, Sep 13, 2011 at 08:24:15AM +0300, Heikki Linnakangas wrote:
> On 13.09.2011 00:33, Dermot wrote:
> >I have seen this feature on the todo list:
> >http://wiki.postgresql.org/wiki/Todo#Referential_Integrity
> >
> >It's my understanding that this will allow FK constraints on array
> >elements, if I'm wrong, please stop me now....
>
> You're right.
>
> I don't want to discourage further development in the area, of
> course, but I think you can already accomplish that with exclusion
> constraints. And starting with 9.1, regular triggers can be used
> too, if you use serializable snapshot isolation.

Unless there's something really clever whereby you would use the same
syntax in the DDL that you would for non-array FKs, there's still work
to be done, possibly via a wrapper around the things you mentioned.

Cheers,
David.
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