minor: only add new columns if they are not present
minor: only add new columns if they are not present

e-koch/frontend,keflavich/frontend,camelot-project/frontend,camelot-project/frontend,e-koch/frontend,adamginsburg/frontend,keflavich/frontend,scog1234/frontend,scog1234/frontend,e-koch/frontend,adamginsburg/frontend,scog1234/frontend,camelot-project/frontend,keflavich/frontend,adamginsburg/frontend