On Fri, Oct 7, 2016 at 7:15 PM, xujian <jamesxu(at)outlook(dot)com> wrote:
>
> we even don't want superuser change the data. so setting the readonly on
> file system level seems a good solution for me.
>
>
You haven't said what business need you are trying to meet with this
solution but I'd posit that making PostgreSQL work on a RO file system is
overkill...
David J.