> Can Fractal Trees technology support the exact same API as B-Trees, only faster? Yeap. That tokudb doesn't support foreign keys is not a data-structure thin

> Can Fractal Trees technology support the exact same API as B-Trees, only faster? Yeap. That tokudb doesn't support foreign keys is not a data-structure thing, its a feature they cut from the mysql shim that sits on top of the fractal tree library. I've got a list as long as my arm about missing features, features that don't work well together, blatant opportunities that the optimizer misses, etc. In all seriousness, I'd be all over postgres instead if it just had fractal trees ;) Most of the problems are not the engine, they are the (R?)DBMS on top.