> I've been looking for something similar for Postgres and MySQL/MariaDB without any luck, and it really surprises me there's not more interest in doing migrations this way.

skeema (suggested above by evanelias) and square/shift are two management tools for MySQL/MariaDB.

On the lower level, I'm authoring GitHub's gh-ost, an online schema migration tool, and we have Ruby on Rails + scripts automation around that. Described in https://www.percona.com/live/17/sessions/automating-schema-c... .

I suspect no matter what solution you'd use, you will always need to break migrations into parts that are not fully automated. e.g. when dropping a column you'd first deploy code that ignores said column, only then run the migration to actually drop the column.