Hi, Roberto! Yes, sure it's possible to write such an engine. Even without redisql. On Apr 18, Roberto Spadim wrote:

Hi folks There’s a module, redisql That allow redis server execute sqlite like queries Could be possible a engine with this tool? It’s looks very interesting to pub sub (stream) data from mysql to redis streamers

https://github.com/RedBeardLab/rediSQL

Regards, Sergei VP of MariaDB Server Engineering and security@mariadb.org