text: CREATE TABLE 'test_models' (
    'id' INTEGER PRIMARY KEY NOT NULL, 
    'content' text, 
    'created_at' datetime, 
    'updated_at' datetime
  );
  
  CREATE TABLE 'test_attrs' (
    'id' INTEGER PRIMARY KEY NOT NULL, 
    'test_model_id' integer,
    'test_model_security_model_id' integer,
    'attr' integer default 1
  );
  
  CREATE TABLE 'test_attr_throughs' (
    'id' INTEGER PRIMARY KEY NOT NULL, 
    'test_attr_id' integer
  );
  
  CREATE TABLE 'test_model_security_models' (
    'id' INTEGER PRIMARY KEY NOT NULL, 
    'attr' integer default 1, 
    'attr_2' integer default 1
  );