Database error: Invalid SQL: select, menu.menu_id, menu.nazwa, menu.kategoria_id, menu.serwis_id, menu_linki.menu_id as linki_id, menu_linki.adres as linki_adres, menu_linki.str_id as linki_str_id, menu_linki.plik_id as linki_plik_id, menu_linki.rozmiar_y as linki_rozmiar_y, menu_linki.rozmiar_x as linki_rozmiar_x, menu_linki.kategoria_id as linki_kategoria_id, menu_tresc.menu_id as tresc_id, menu_ikony.ikona, as m_id from menu left join menu_linki on = menu_linki.menu_id left join menu_tresc on = menu_tresc.menu_id left join menu_ikony on = menu_ikony.menu_id left join menu as m on = m.menu_id where = '3' and menu.widok = '1' group by order by menu.kolejnosc, menu.nazwa
MySQL Error: 1055 (Expression #14 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'www.menu_ikony.ikona' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by)
Session halted.