class CreateEnumerations < ActiveRecord::Migration def change create_table :enumerations, options: 'DEFAULT CHARSET=utf8' do |t| t.string :name, null: false, limit: 128 t.string :type, null: false t.timestamps end add_index :enumerations, :name add_index :enumerations, :type add_index :enumerations, [:name, :type] end end