> There have been a ton of discussions around this area over the years.
> The short answer is that if you think you need to prevent people
> from seeing the contents of the system catalogs, Postgres is not
> the database for you. I don't really foresee that changing, because
> it would break at least as many use-cases as it would enable. The
> thread David referenced only talks about side-effects on pg_dump,
> but there are many other applications that would be just as broken
> if we restricted this.
Thank you for information.
I understood community's concern and policy.
Regards,
Shigeo Hirose
