Don't change db/schema for sessions

db/schema.rb

@@ -221,7 +221,7 @@ ActiveRecord::Schema.define(version: 20150921081619) do
     t.datetime "updated_at"
   end
-  add_index "sessions", ["session_id"], name: "index_ci_sessions_on_session_id", using: :btree
-  add_index "sessions", ["updated_at"], name: "index_ci_sessions_on_updated_at", using: :btree
+  add_index "sessions", ["session_id"], name: "index_sessions_on_session_id", using: :btree
+  add_index "sessions", ["updated_at"], name: "index_sessions_on_updated_at", using: :btree
 end