Re: effective SELECT from child tables

> If you treat the sub-class Discriminator as a data item rather than some
> additional syntax for class membership then you will find this works
> very straightforwardly for you.

Your suggestion is essentially the same as mine.. 
There exists tableoid, pretty much suited to tell between tables in the case
of inheritance.. I can't see a "real" need to add a special "class
classifier" to each table..
This solution is a workaround. It will work, just can't make myself love it.