SELECT s.id, s.extra, ss.ref_seminarka FROM seminarka AS s LEFT JOIN seminarka_spisovatel AS ss ON s.id = ss.ref_seminarka WHERE s.id IN(16480, 4213, 23404) and s.autorizace >0 and s.id in (select distinct STR_SEMINARKA_FK from strom where STR_SEMINARKA_TYP_FK in (2, 4, 20) or (STR_SEMINARKA_TYP_FK=17 and STR_SUBKATEGORIE_FK=247) or (STR_SEMINARKA_TYP_FK in (18, 1, 9, 11) and STR_SUBKATEGORIE_FK in (117, 342))) GROUP BY s.id