WINDOW FUNCTION MIN
description
LEAD() 方法用来计算窗口内的最小值。
MAX([DISTINCT | ALL] expression) [OVER (analytic_clause)]example
计算从第一行到当前行之后一行的最小值
select x, property,
min(x) over
(
order by property, x desc
rows between unbounded preceding and 1 following
) as 'local minimum'
from int_t where property in ('prime','square');
| x | property | local minimum |
|---|----------|---------------|
| 7 | prime | 5 |
| 5 | prime | 3 |
| 3 | prime | 2 |
| 2 | prime | 2 |
| 9 | square | 2 |
| 4 | square | 1 |
| 1 | square | 1 |keywords
WINDOW,FUNCTION,MIN