Perry Smith <pedz@xxxxxxxxxxxxxxxx> writes: > From within the container, files which I assume are created by > PostgreSQL are ending up being owned by root rather than Postgres. If it looks that way from *inside* the container, that's not good --- wouldn't that prevent Postgres from reading the files? > The reason I’m sending this note to the general list is to ask how bad > is this error? Some “solutions” are to make the pg_stat_tmp directory > internal to the image and that somehow resolves the issue but I don’t > think anyone really understands why and things like that bother me. But > I’m also curious if that appears to be a viable solution. The result > will be that when the Postgres is stopped and the container exited, the > next time Postgres starts back up, the pg_stat_tmp directory will be > gone. Is that ok? pg_stat_tmp exists specifically because it holds only temporary files, cf https://www.postgresql.org/docs/devel/storage-file-layout.html It's explicitly cleared out during server start. The only reason to put it outside the data directory is to make it *less* persistent than the rest of PG's files, say by putting it on a RAM disk. You sound like you've set it up to be *more* persistent (ie outside the container not inside), which surely is exactly backwards. regards, tom lane