On Tue, Sep 13, 2005 at 12:15:21PM -0700, Ben wrote:
> Oracle has a very handy function called first_value, which can be used
> to turn a set like this:
Look at DISTINCT ON ()
> Does postgres have something equivalent, or, even better, is there a
> reasonable way to express this in standard SQL?
In standard SQL, not really, which is why it's an extention...
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.