This is a little off topic, but related. Does anyone know of any tools that would allow information about the size and shape of expected data to be provided alo

This is a little off topic, but related. Does anyone know of any tools that would allow information about the size and shape of expected data to be provided along with a database schema so that developers could get instant feedback if queries were likely to perform poorly when run against production data sets. Or to perform poorly when a database grows to beyond a certain size. I have seen many instances of SQL going into production databases that works well for a while, but gets much slower as the database grows.