why radacctid is the primary key of radacct table instead of acctuniqueid ?

After solving the problem of duplicate registers in radacct, see https://list.xs4all.nl/pipermail/freeradius-users/2006-August/056246.html I have this doubt: why radacctid is the primary key of radacct table instead of acctuniqueid ? This is a way to avoid this problem and the DBMS equally works. Santiago _________________________________________________________________ Acepta el reto MSN Premium: Protección para tus hijos en internet. Descárgalo y pruébalo 2 meses gratis. http://join.msn.com?XAPID=1697&DI=1055&HL=Footer_mailsenviados_proteccioninf...