mmc(at)maruska(dot)dyndns(dot)org (Michal =?iso-8859-2?q?Maru=B9ka?=) writes:
> So, my question is: should i look at the code which walks that tree
> (probably related to the function SendRowDescriptionMessage), or
> is this code (which provides the distinguishing info) already available?
The problem is you haven't said what it is you want to distinguish.
Yes, p is the primary key of A ... so then what?
regards, tom lane