class ActiveRecord::Migration::Compatibility::V5_0

def create_table(table_name, **options)
  if connection.adapter_name == "PostgreSQL"
    if options[:id] == :uuid && !options.key?(:default)
      options[:default] = "uuid_generate_v4()"
    end
  end
  unless ["Mysql2", "Trilogy"].include?(connection.adapter_name) && options[:id] == :bigint
    if [:integer, :bigint].include?(options[:id]) && !options.key?(:default)
      options[:default] = nil
    end
  end
  # Since 5.1 PostgreSQL adapter uses bigserial type for primary
  # keys by default and MySQL uses bigint. This compat layer makes old migrations utilize
  # serial/int type instead -- the way it used to work before 5.1.
  unless options.key?(:id)
    options[:id] = :integer
  end
  super
end