create table t1 (
  pk int primary key,
  a int,
  b int,
  c char(10),
  d decimal(10, 3),
  e real
);

insert into t1 values
( 1, 0, 1,    'one',    0.1,  0.001),
( 2, 0, 2,    'two',    0.2,  0.002),
( 3, 0, 3,    'three',  0.3,  0.003),
( 4, 1, 2,    'three',  0.4,  0.004),
( 5, 1, 1,    'two',    0.5,  0.005),
( 6, 1, 1,    'one',    0.6,  0.006),
( 7, 2, NULL, 'n_one',  0.5,  0.007),
( 8, 2, 1,    'n_two',  NULL, 0.008),
( 9, 2, 2,    NULL,     0.7,  0.009),
(10, 2, 0,    'n_four', 0.8,  0.010),
(11, 2, 10,   NULL,     0.9,  NULL);

select pk,
       nth_value(pk, 1) over (order by pk),
       nth_value(pk, 2) over (order by pk),
       nth_value(pk, 0) over (order by pk),
       nth_value(pk, -1) over (order by pk),
       nth_value(pk, -2) over (order by pk)
from t1
order by pk asc;

select pk,
       nth_value(pk, pk) over (order by pk),
       nth_value(pk / 0.1, pk) over (order by pk)
from t1
order by pk asc;

select pk,
       a,
       nth_value(pk, pk) over (partition by a order by pk),
       nth_value(pk, a + 1) over (partition by a order by pk)
from t1
order by pk asc;

#enable after fix MDEV-27871
--disable_view_protocol
select pk,
       a,
       nth_value(pk, 1) over (partition by a order by pk ROWS between 1 preceding and 1 following)
from t1;
--enable_view_protocol

#enable after fix MDEV-28535
--disable_view_protocol
select pk,
       a,
       nth_value(a, 1) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 2) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 3) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 4) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 5) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 6) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 7) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 8) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 9) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 10) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 11) over (order by a RANGE BETWEEN 1 preceding and 1 following),
       nth_value(a, 12) over (order by a RANGE BETWEEN 1 preceding and 1 following)
from t1
order by pk asc;
--enable_view_protocol

drop table t1;