Re: [HACKERS] Re: ALTER TABLE DROP COLUMN - Mailing list pgsql-hackers

Hannu Krosing wrote:
> 
> Jan Wieck wrote:
> >
> >     It'll be expensive, compared to current UNIQUE implementation
> >     doing  it  on  the fly during btree insert (doesn't it?). But
> >     the only way I see.
> 
> So currently we have foreign keys :)

I meant of course ON UPDATE RESTRICT PRIMARY KEYS ..

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Hannu