We specifically had to switch to MyISAM for some things when upgrading from 5.5 to 5.7, in 2017. We were hitting InnoDB’s 4k row limit in many cases (without cl

We specifically had to switch to MyISAM for some things when upgrading from 5.5 to 5.7, in 2017. We were hitting InnoDB’s 4k row limit in many cases (without clobs). Fortunately the tables in question are filled once, updated a couples times right after, and from then on only read, so lack of ACID is ok just for that. (All the real transactional tables are InnoDB.)