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, row_number() over () from t1;
pk	row_number() over ()
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
explain FORMAT=JSON select pk, row_number() over () from t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost": "COST_REPLACED",
    "window_functions_computation": {
      "sorts": [
        {
          "filesort": {
            "sort_key": "pk"
          }
        }
      ],
      "temporary_table": {
        "nested_loop": [
          {
            "table": {
              "table_name": "t1",
              "access_type": "index",
              "key": "PRIMARY",
              "key_length": "4",
              "used_key_parts": ["pk"],
              "loops": 1,
              "rows": 11,
              "cost": "COST_REPLACED",
              "filtered": 100,
              "using_index": true
            }
          }
        ]
      }
    }
  }
}
explain FORMAT=JSON select row_number() over (), pk from t1;
EXPLAIN
{
  "query_block": {
    "select_id": 1,
    "cost": "COST_REPLACED",
    "window_functions_computation": {
      "sorts": [
        {
          "filesort": {
            "sort_key": "`row_number() over ()`"
          }
        }
      ],
      "temporary_table": {
        "nested_loop": [
          {
            "table": {
              "table_name": "t1",
              "access_type": "index",
              "key": "PRIMARY",
              "key_length": "4",
              "used_key_parts": ["pk"],
              "loops": 1,
              "rows": 11,
              "cost": "COST_REPLACED",
              "filtered": 100,
              "using_index": true
            }
          }
        ]
      }
    }
  }
}
select row_number() over () from (select 4) as t;
row_number() over ()
1
select min(a) over (), max(a) over (), a, row_number() over ()
from t1
where a = 0;
min(a) over ()	max(a) over ()	a	row_number() over ()
0	0	0	1
0	0	0	2
0	0	0	3
select a, min(a) over (), max(a) over (), row_number() over ()
from t1
where a = 0;
a	min(a) over ()	max(a) over ()	row_number() over ()
0	0	0	1
0	0	0	2
0	0	0	3
select min(a) over () + 1, max(a) over (), row_number() over ()
from t1
where a = 0;
min(a) over () + 1	max(a) over ()	row_number() over ()
1	0	1
1	0	2
1	0	3
select min(a) over () + a, max(a) over (), row_number() over ()
from t1
where a = 1;
min(a) over () + a	max(a) over ()	row_number() over ()
2	1	1
2	1	2
2	1	3
select a + min(a) over (), max(a) over (), row_number() over ()
from t1
where a = 1;
a + min(a) over ()	max(a) over ()	row_number() over ()
2	1	1
2	1	2
2	1	3
select a + min(a) over () from t1 where a = 1;
a + min(a) over ()
2
2
2
create view win_view
as (select a, min(a) over () from t1 where a = 1);
select * from win_view;
a	min(a) over ()
1	1
1	1
1	1
drop view win_view;
create view win_view
as (select a, max(a + 1) over () from t1 where a = 1);
select * from win_view;
a	max(a + 1) over ()
1	2
1	2
1	2
drop view win_view;
drop table t1;