Mine

CREATE OR REPLACE FUNCTION benchmark(funkcija TEXT, kiekis INTEGER) RETURNS void AS $$    DECLARE        i INTEGER;	uzklausa TEXT;    BEGIN        i := 0;	uzklausa = 'SELECT ' || funkcija || '();';	WHILE i < kiekis LOOP	    EXECUTE uzklausa;	    i := i + 1;	END LOOP;    END;$$ LANGUAGE plpgsql;