Add an index to milestones title and label title

db/migrate/20151013133938_add_index_to_milestones.rb

+class AddIndexToMilestones < ActiveRecord::Migration
+  def change
+    add_index :milestones, :title
+    add_index :labels, :title
+  end
+end

db/schema.rb

@@ -410,6 +410,7 @@ ActiveRecord::Schema.define(version: 20151008130321) do
   end
 
   add_index "labels", ["project_id"], name: "index_labels_on_project_id", using: :btree
+  add_index "labels", ["title"], name: "index_labels_on_title", using: :btree
 
   create_table "members", force: true do |t|
     t.integer  "access_level",       null: false
@@ -491,6 +492,7 @@ ActiveRecord::Schema.define(version: 20151008130321) do
   add_index "milestones", ["due_date"], name: "index_milestones_on_due_date", using: :btree
   add_index "milestones", ["project_id", "iid"], name: "index_milestones_on_project_id_and_iid", unique: true, using: :btree
   add_index "milestones", ["project_id"], name: "index_milestones_on_project_id", using: :btree
+  add_index "milestones", ["title"], name: "index_milestones_on_title", using: :btree
 
   create_table "namespaces", force: true do |t|
     t.string   "name",                     null: false