Re: Basic Q on superfluous primary keys - Mailing list pgsql-performance

Craig A. James wrote:

> Since we're only aggregating information, we have
> no control over the data that these companies provide.

And at the end of the day that's the root of the problem. It's easy to
be lulled into "well it looks like a primary key" rather than being able
to guarantee it.

--
   Richard Huxton
   Archonet Ltd