Elixir pattern match on ecto error

I am relying on Ecto to return an error when an insert fails a database level constraint.

Is it possible to run different code depending on the error type returned by Ecto?

case Repo.insert(changeset) do
        {:ok, _} ->
            IO.puts("inserted")
        {:error, message} when is_certain_ecto_error ->
            IO.puts("database constraint error")
        {:error, message}  ->
            IO.puts("everything else error")
end