discourse/db/migrate/20140214151255_add_skipped_to_email_logs.rb

class AddSkippedToEmailLogs < ActiveRecord::Migration[4.2]
  def change
    add_column :email_logs, :skipped, :boolean, default: :false
    add_column :email_logs, :skipped_reason, :string
    add_index  :email_logs, [:skipped, :created_at]
  end
end