Add option to modify HTTP pool size

[akkoma] / priv / repo / migrations / 20190410152859_add_participation_updated_at_index.exs

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

  def change do
    create_if_not_exists(index(:conversation_participations, ["updated_at desc"]))
  end
end