radusergroup without primary key

[Efi merdler]

Hello,

I'm using radius 2.1.12 with postgresql as a backend. I've noticed
that radusergroup does not contain any key column.

There is a complaint on the subject posted back in 2007
(http://lists.freeradius.org/pipermail/freeradius-devel/2007-August/003239.html)
however nobody addressed it.

We are accessing the table from an external process and it requires a
primary key to be successful, how would you recommend handling it ?

Cheers