class TicketEscalationUpdateTime < ActiveRecord::Migration def up add_column :tickets, :update_time_escal_date, :timestamp, :null => true add_column :tickets, :updtate_time_sla_time, :timestamp, :null => true add_column :tickets, :update_time_in_min, :integer, :null => true add_column :tickets, :update_time_diff_in_min, :integer, :null => true add_index :tickets, [:update_time_in_min] add_index :tickets, [:update_time_diff_in_min] end def down end end