The advantages of Postgres (and MariaDB) over MySQL are pretty well traveled on HN. OP wants to move from Redshift Postgres & SQL Server to MySQL - which isn't something you see very often.
Re:MySQL 8.0 is now generally available
by semiquaver on Thursday April 19, 2018 @11:58AM
(#16876956)
> The transactional DDL seems to be introduced in MySQL per 8.0 though
I thought so as well from the release note wording, thanks to theptip for confirming in the docs that DDL is not transactional in 8.0, just crash-safe. see https://news.ycombinator.com/item?id=16876549.
The transactional DDL seems to be introduced in MySQL per 8.0 though