Exclude predefined roles from diffs

[fpuga]

I'm testing this extension as it can be really helpful to review privileges.

When using the diffs function i'm using it like this:

SELECT * from public.permission_diffs() WHERE role_name NOT LIKE 'pg_%';

to avoid pg_write_all_data, ... to appear in the output.

Have your consider excluding predefined roles by default?

Or maybe provide a set of INSERT INTO public.permission_target example queries that set the permissions for the predefined roles.

[laurenz]

That would be a useful enhancement; we should ignore the predefined roles.
I'll leave it open as an enhancement request.