在postgresql函数中动态生成表/数组

如果您使用的是Postgresql 8.4:

SELECT generate_series(_start ::timestamp,_end ::timestamp,'1 day');

postgres=# SELECT generate_series('2010-06-01'::timestamp,
postgres-# '2010-06-05'::timestamp,'1 day')::date;
 generate_series
-----------------
 2010-06-01
 2010-06-02
 2010-06-03
 2010-06-04
 2010-06-05

在旧版本上:

SELECT '2010-06-01'::date + step FROM
generate_series(0,'2010-06-05'::date - '2010-06-01'::date,1) AS t(step);