Postgresql PSQL:聚合函数（总和）不工作

我有这个查询（

artist\u money

属于

money

类型，例如

$30456.11

）：

发生什么事了？根据，

SUM

如果是

MONEY

类型，则应采用参数

---

非常感谢

问题在于逗号，而不是货币类型。也许你打算：

SELECT SUM(CASE WHEN end_date - date '2015-12-3' <= 28 AND end_date - date '2015-12-03' > 0
                THEN artist_money
           END),
       SUM(CASE WHEN date '2015-12-3' - start_date > 28
                THEN artist_money
           END
          ) AS "gonorar"
FROM peacecard 
WHERE artist_id = 12345 AND contract IS NOT NULL;

---

问题在于逗号，而不是货币类型。也许你打算：

SELECT SUM(CASE WHEN end_date - date '2015-12-3' <= 28 AND end_date - date '2015-12-03' > 0
                THEN artist_money
           END),
       SUM(CASE WHEN date '2015-12-3' - start_date > 28
                THEN artist_money
           END
          ) AS "gonorar"
FROM peacecard 
WHERE artist_id = 12345 AND contract IS NOT NULL;

---

您试图将两个参数传递给聚合1参数函数

您试图将两个参数传递给聚合1参数函数

它必须是

sum（money）

，而不是

sum（money，money）

。谢谢。它必须是

sum（money）

，而不是

sum（money，money）

。谢谢

SELECT SUM(CASE WHEN end_date - date '2015-12-3' <= 28 AND end_date - date '2015-12-03' > 0
                THEN artist_money
           END),
       SUM(CASE WHEN date '2015-12-3' - start_date > 28
                THEN artist_money
           END
          ) AS "gonorar"
FROM peacecard 
WHERE artist_id = 12345 AND contract IS NOT NULL;

SELECT SUM(CASE WHEN end_date - date '2015-12-3' <= 28 AND end_date - date '2015-12-03' > 0
                THEN artist_money
                WHEN date '2015-12-3' - start_date > 28
                THEN artist_money
           END
          ) AS "gonorar"
FROM peacecard 
WHERE artist_id = 12345 AND contract IS NOT NULL;