MySQL 4 中组函数的无效使用（不在 5 中）答案

【问题标题】：Invalid use of group function in MySQL 4 (not in 5)MySQL 4 中组函数的无效使用（不在 5 中）
【发布时间】：2010-04-19 06:13:43
【问题描述】：

知道为什么要查询

SELECT 
  m.* 
FROM 
  products_description pd, 
  products p 
  left join manufacturers m on p.manufacturers_id = m.manufacturers_id,
  products_to_categories p2c 
WHERE 
  p.products_carrot = '0' and 
  p.products_status = '1' and 
  p.products_id = p2c.products_id and 
  pd.products_id = p2c.products_id and 
  pd.language_id = '4' and 
  p2c.categories_id = '42'
GROUP BY manufacturers_id 
ORDER BY COUNT(*)

可能会出现以下错误：

#1111 - 组函数使用无效

在 MySQL 4.0.24 上而不是在 MySQL 5.0.51 上？

【问题讨论】：

制造商表是否只有两列，id + 1 other？

标签： mysql mysql-error-1111

【解决方案1】：

自我反应。在 SELECT 子句中提到我想要排序的列并为其设置别名就可以了：

SELECT 
  m.*, COUNT(*) as cnt
FROM 
  products_description pd, 
  products p 
  left outer join manufacturers m on p.manufacturers_id = m.manufacturers_id,
  products_to_categories p2c 
WHERE 
  p.products_carrot = '0' and 
  p.products_status = '1' and 
  p.products_id = p2c.products_id and 
  pd.products_id = p2c.products_id and 
  pd.language_id = '4' and 
  p2c.categories_id = '42'
GROUP BY p.manufacturers_id 
ORDER BY cnt

【讨论】：