Re: Planner not using UNIQUEness of index properly - Mailing list pgsql-general

Tom Lane wrote:

>> I would think UNIQUE => one row is pretty obvious - what am I
>> missing?  (Unless it's that I'm still stuck in 7.4.)
>
> That would be the problem :-( ... a look at the code suggests that the
> ability to do anything intelligent with expression indexes was added
> in 8.0.

Whaa.  Okay, more ammunition, thanks.

- John D. Burger
   MITRE