David Steele <da...@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