(pdf) https://www.redshiftresearchproject.org/white_papers/downloa...
(html) https://www.redshiftresearchproject.org/white_papers/downloa...
I've been told, very kindly, by a couple of people that it's the best explanation they've ever seen. I'd like to get more eyes on it, to pick up any mistakes, and it might be useful in and of itself anyway to reader, as MVCC on Redshift is I believe the same as MVCC was on Postgres before snapshot isolation.