db/migrate/20140617183708_create_sessions.rb


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class CreateSessions < ActiveRecord::Migration
  def change
    create_table :sessions do |t|
      t.string :session_id, :null => false
      t.text :data
      t.timestamps null: true
    end

    add_index :sessions, :session_id
    add_index :sessions, :updated_at
  end
end