4 Every time you attempt to `DELETE` a row from `action.circ`, it
5 copies over the appropriate data to `action.aged_circulation`,
6 then deletes the `action.circ` row.
11 Aging circulations helps to protect patron privacy and save disk space.
17 Just aging circulations is not sufficient to protect patron circulation
18 history. Fully protecting these data would also involve a thoughtful
19 approach to logs and backups of these data.
24 You can create a cron job to automatically age circulations.