Doctrine 添加由其他字段确定的列

Doctrine 添加由其他字段确定的列,doctrine,dql,Doctrine,Dql,我有一张非常简单的桌子。让我们说: 测试 --------------------------- | id | group | value | --------------------------- | 1 | A | 10 | | 2 | A | 11 | | 3 | A | 12 | | 4 | B | 20 | | 5 | B | 21 | | 6

我有一张非常简单的桌子。让我们说:

测试

---------------------------
| id  |  group   | value  |
---------------------------
| 1   |  A       | 10     |
| 2   |  A       | 11     |
| 3   |  A       | 12     |
| 4   |  B       | 20     |
| 5   |  B       | 21     |
| 6   |  B       | 22     |
---------------------------
对于DQL语句,我想添加一列,指示条目是否具有每个
组的最大

-----------------------------------------------
| id  |  group   | value  |  calculatedColumn |
-----------------------------------------------
| 1   |  A       | 10     |                 0 |
| 2   |  A       | 11     |                 0 |
| 3   |  A       | 12     |                 1 |
| 4   |  B       | 20     |                 0 |
| 5   |  B       | 21     |                 0 |
| 6   |  B       | 22     |                 1 |
-----------------------------------------------
我能够在sql中执行该操作。但是在DQL中,我得到了一个语法错误。以下是我尝试过的一些查询:

SELECT T.id, T.group, T.value, 
  (SELECT (CASE WHEN (SELECT T.id, MAX(T.value) AS HIDDEN d ORDER BY T.value) = T.id THEN 1 ELSE 0 END)) AS calculatedColumn
FROM test T

SELECT T.id, T.group, T.value, 
  (SELECT (IF (SELECT T.id, MAX(T.value) AS HIDDEN d ORDER BY T.value) = T.id)) AS calculatedColumn
FROM test T
有没有办法实现这种功能