I suspect you're right. I wonder if that's part of the reason why they claim a lower performance improvement of 2x over "standard" pgsql installations rather th

I suspect you're right. I wonder if that's part of the reason why they claim a lower performance improvement of 2x over "standard" pgsql installations rather than the 5x improvement of Aurora/MySQL over standard MySQL installations. If so, though, hopefully there's a silver lining of faster incorporation of new pgsql features into the Aurora/PG service.