On Sat, Apr 11, 2015 at 12:57 AM David G. Johnston <david.g.johnston@xxxxxxxxx> wrote:Yes either an upper bound to which users can set their own values to.Upper is somewhat easier but currently the system would only recognize a global constraint.Does it? Even though my work_mem in postgresql.conf is 1MB, the user can alter itself to set its own work_mem to 1GB. Or did I interpret your statement wrongly?
Pg_settings currently has an upper bound column - though it is a view and that value cannot be changed that I know of. But if it could I suspect that whatever catalog you would change to affect it would only cause a global change. There is no alter database, role, or postgresql way to change that value.
David J.
