> Not sure what pathological actually means in the SQLite context; "Pathological" cases are those which require "excessive" efforts or computing resources. Often times a solution to a given problem works fine on "normal" inputs but will slow down drastically, or cost far more memory, or have similar penalties for certain "legal, but probably rare or unexpected" inputs, and such cases are described as "pathological" cases. More info: <https://en.wikipedia.org/wiki/Pathological_(mathematics)#Computer_science>