Add correct index.

[akkoma] / priv / repo / migrations / 20170620142420_add_object_activity_index_part_two.exs

defmodule Pleroma.Repo.Migrations.AddObjectActivityIndexPartTwo do
  use Ecto.Migration

  def change do
    drop index(:objects, ["(data->'object'->>'id')", "(data->>'type')"], name: :activities_create_objects_index)
    create index(:activities, ["(data->'object'->>'id')", "(data->>'type')"], name: :activities_create_objects_index)
  end
end