I have been working on user activity using Tableau postgres, I was able to find Created_at from Historical_events Table where each record representing an activity. Well, my requirement is to track when the user got added into the security group. I have seen _groups,group_users, hist_groups and groups tables, I found Created_at and Updated_at in groups table which are equal except in few cases also Last_synchronized is null everywhere. But none of them are helpful.
Please let me know if anyone has found any for this case ?
Also do you think we can track such user activity in Tableau Postgres ?