My fault. I misread it. PostgreSQL has only heavy-utilization unit on reserved instance. I thought it's light utilization unit. Heavy/Large/1yr(reserved, multi

My fault. I misread it. PostgreSQL has only heavy-utilization unit on reserved instance. I thought it's light utilization unit. Heavy/Large/1yr(reserved, multiAZ)/Tokyo: PostgreSQL = $1548, Oracle = $2440 Seems reasonable price. And I don't care MySQL price because it's not an option to me.