Re: [HACKERS] PATCH: Configurable file mode mask

Simon Riggs <simon@2ndquadrant.com> writes:
> On 1 March 2017 at 01:58, David Steele <david@pgmasters.net> wrote:
>> PostgreSQL currently requires the file mode mask (umask) to be 0077.
>> However, this precludes the possibility of a user in the postgres group
>> performing a backup (or whatever).  Now that
>> pg_start_backup()/pg_stop_backup() privileges can be delegated to an
>> unprivileged user, it makes sense to also allow a (relatively)
>> unprivileged user to perform the backup at the file system level as well.

> +1

I'd ask what is the point, considering that we don't view "cp -a" as a
supported backup technique in the first place.
        regards, tom lane