select o.name_ru, o.iata from as_objs o where o.cntr = 'CN' AND o.parent_name_en = 'Yan'an' AND o.tp = 'airport'failed: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'an' AND o.tp = 'airport'' at line 4