create table t1 (
  pk int primary key,
  a int,
  b int
);


insert into t1 values
(11 , 0, 10),
(12 , 0, 10),
(13 , 1, 10),
(14 , 1, 10),
(18 , 2, 10),
(15 , 2, 20),
(16 , 2, 20),
(17 , 2, 20),
(19 , 4, 20),
(20 , 4, 20);

# TODO Try invalid queries too.

--error ER_INVALID_NTILE_ARGUMENT
select pk, a, b, ntile(-1) over (order by a)
from t1;

--error ER_INVALID_NTILE_ARGUMENT
select pk, a, b,
    ntile(0) over (order by a)
from t1;

--sorted_result
select pk, a, b,
    ntile(1) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(2) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(3) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(4) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(5) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(6) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(7) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(8) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(9) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(10) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(11) over (order by pk)
from t1;

--sorted_result
select pk, a, b,
    ntile(20) over (order by pk)
from t1;


select pk, a, b,
    ntile(1) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(2) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(3) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(4) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(5) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(6) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(7) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(8) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(9) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(10) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(11) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(20) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile(1 + 3) over (partition by b order by pk)
from t1;

select pk, a, b,
    ntile((select 4)) over (partition by b order by pk)
from t1;

select t1.a from t1 where pk = 11;
--error ER_INVALID_NTILE_ARGUMENT
select pk, a, b,
    ntile((select a from t1 where pk=11)) over (partition by b order by pk)
from t1;

select t1.a from t1 where pk = 13;
select pk, a, b,
    ntile((select a from t1 where pk=13)) over (partition by b order by pk)
from t1;

explain
select pk, a, b,
    ntile((select a from t1 where pk=13)) over (partition by b order by pk)
from t1;

select a from t1;
--error ER_SUBQUERY_NO_1_ROW
select pk, a, b,
    ntile((select a from t1)) over (partition by b order by pk)
from t1;


drop table t1;