class CreateMacSources < ActiveRecord::Migration[6.0]
  def change
    create_table :mac_sources do |t|
      t.string :mac_id, :null => false
      t.string :uid , :null => false, :default => ""
      t.string :sn
      t.timestamps null: false
    end
    add_index :mac_sources, :mac_id, :unique => true
  end
end