gistfile1.rb

class AddIndexesToTables < ActiveRecord::Migration
  def self.up
    add_index :tweets, :user_id
    add_index :tweets, :tweet_id
    add_index :tweets, :created_at
    add_index :users, :email, :unique => true
    add_index :account_settings, :user_id
  end


  def self.down
    remove_index :tweets, :user_id
    remove_index :tweets, :tweet_id
    remove_index :tweets, :created_at
    remove_index :tweets, :email
    remove_index :account_settings, :user_id
  end
end