update

phoenix/deps/phoenix_ecto/lib/phoenix_ecto.ex

@@ -0,0 +1,17 @@
+defmodule Phoenix.Ecto do
+  @moduledoc """
+  Integrates Phoenix with Ecto.
+
+  It implements many protocols that make it easier to use
+  Ecto with Phoenix either when working with HTML or JSON.
+  """
+  use Application
+
+  def start(_type, _args) do
+    children = [
+      {DynamicSupervisor, name: Phoenix.Ecto.SQL.SandboxSupervisor, strategy: :one_for_one}
+    ]
+
+    Supervisor.start_link(children, strategy: :one_for_one, name: Phoenix.Ecto.Supervisor)
+  end
+end