Sequel.migration do

change do
  create_table :users do
    primary_key :id

    Integer :telegram_id, null: false, unique: true
    String  :first_name, size: 255
    String  :last_name, size: 255
    String  :username, size: 255
    TrueClass :active, null: false, default: true

    DateTime  :created_at, null: false
    DateTime  :updated_at
  end
end

end