val query3 = for {
        r <- radnik if ime.map(r.ime === _).getOrElse(r.ime =!= "") || prz.map(r.prz === _).getOrElse(r.prz =!= "") && mbr.map(r.mbr === _).getOrElse(r.mbr =!= -1)
      } yield r

select x2.`Mbr`, x2.`Ime`, x2.`Prz`, x2.`Sef`, x2.`Plt`, x2.`Pre`, x2.`God` from `radnik` x2 where (x2.`Ime` = '%E%') or ((not (x2.`Prz` = '')) and (not (x2.`Mbr` = -1)))