Pavel Luzanov <p(dot)luzanov(at)postgrespro(dot)ru> writes:
> Another approach based on early suggestions.
I think expecting the pg_roles view to change for this is problematic.
You can't have that in the back branches, so with this patch psql
will show something different against a pre-17 server than later
versions. At best, that's going to be confusing. Can you get the
same result without changing pg_roles?
regards, tom lane