private function dumpSql()
    {
        $this->app['schema']->check();

        $context = [
            'alters'  => $this->app['schema.comparator']->getAlters(),
            'creates' => $this->app['schema.comparator']->getCreates(),
        ];

        foreach ($context as $section) {
            foreach ($section as $sql) {
                $this->io->writeln($sql);
            }
        }
    }