create table emp_input
(
id      int,
name    varchar(40)
);
insert into emp_input values (1, 'Emp1');
insert into emp_input values (2, 'Emp2');
insert into emp_input values (3, 'Emp3');
insert into emp_input values (4, 'Emp4');
insert into emp_input values (5, 'Emp5');
insert into emp_input values (6, 'Emp6');
insert into emp_input values (7, 'Emp7');
insert into emp_input values (8, 'Emp8');

/*select * from emp_input;*/

with cte as(
select concat(id, ' ', name) as name,
ntile(4) over(order by id) as buckets
from emp_input)
select string_agg(name,', ') as finalResult
from cte
group by buckets
order by 1