groupname value

Hi folks, I think this has been talked about a couple of times in the past but i can not see the reply with the best way to achieve it so pardon me if i am duplicating the issue/concerns. radacct.groupname is empty obviously there is no default query for it. It's not coming in the radaccouting so i don't think we can do in the accounting query either. have someone already done it ? can you please guide us how to do it? I think writing down step by step will be helpful for the community. Our system information: FreeRADIUS Version 3.0.13 5.5.56-MariaDB MariaDB Server CentOS Linux release 7.4 Thanks --- Regards, Jehanzaib