David Steele <david@pgmasters.net> writes:
> On 3/12/18 3:28 AM, Michael Paquier wrote:
>> In pg_rewind and pg_resetwal, isn't that also a portion which is not
>> necessary without the group access feature?
> These seem like a good idea to me with or without patch 03. Some of our
> front-end tools (initdb, pg_upgrade) were setting umask and others
> weren't. I think it's more consistent (and safer) if they all do, at
> least if they are writing into PGDATA.
+1 ... see a926eb84e for an example of how easy it is to screw up if
the process's overall umask is permissive.
regards, tom lane