Idea: Output number of tables (and columns?)

[etagwerker]

Hi there,

This is coming from the README:

Output other metrics like number of tables and columns

It would be interesting to compare number of tables vs. number of models. It could be a good indicator about the complexity of the application, presence of STIs, polymorphism, etc...

In the most basic format, it could count the number of create_table in the schema.rb or CREATE TABLE in the structure.sql