生成日期範圍天行

Question

我想運行一個查詢像

select ... as days where `date` is between '2010-01-28' and '2010-02-03' 

而像返回數據：

days 
--- 
28 
29 
30 
31 
1 
2 
3 

Answer 1

select extract(day from d) as days 
from generate_series(timestamp '2010-01-28', timestamp '2010-02-03', interval '1' day) as d 
order by d; 

SQLFiddle例如：http://sqlfiddle.com/#!15/d41d8/3464