Well, writing a procedure that rebuilds the complete table in Postgres or Oracle is easy as well. I never needed this, but I am sure, there are some sample impl

Well, writing a procedure that rebuilds the complete table in Postgres or Oracle is easy as well. I never needed this, but I am sure, there are some sample implementations out there. Rebuilding the entire table doesn't seem feasible for large tables to begin with. Especially with a lot of incoming and outgoing foreign keys. I disagree that MySQL is the most "popular". It might be the "most used" one because of so many web hosting services included it for ages by default.