Lars Bergeson <larsavatar@xxxxxxxxx> writes: > I'm running PostgreSQL under AWS Aurora, and I didn't set it up or install > it, so I'm not sure about the OS version. Oh! Aurora is not Postgres. My admittedly-not-well-informed understanding is that they stuck a Postgres front end on their existing storage engine, so it's not surprising if storage-level behaviors are quite different from stock Postgres. regards, tom lane