Column Single Compare icon

<svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor"><path d="M4 4c0-1.1.9-2 2-2h8a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2zm2-1a1 1 0 0 0-1 1v2h10V4a1 1 0 0 0-1-1zm-1 8h10V7H5zm0 3v2a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1v-2z"/></svg>