Doctrine子查询错误：预期=，＆lt;，＆lt; =，＆lt;＆gt;，＆gt;，＆gt; =，！=，得到'LIKE'

Question

我遇到DQL问题。 我的SQL查询看起来像：

public class Requirements
{
    public string EventMessageUId { get; set; }
    public int ProjectId { get; set; }
    public string CreatedByUser { get; set; }
    public string CreatedByApp { get; set; }        
    public string CreatedOn { get; set; }

    private Message _Message = new Message();
    public Message Message  { get { return this._Message ; } set { this._Message = value; } }

}
public class Message
{
   public string StoryID { get; set; }
   public string StoryDesc { get; set; }
}

我尝试将此查询转移到doctrine：

SELECT COUNT(c.id) FROM company c WHERE (SELECT MIN(u.surname) FROM contact u WHERE u.company_id = c.id) LIKE '%a%'

但是这次抛出

  

QueryException：[语法错误]第0行，第136栏：错误：预期=，＆lt;，＆lt; =，＆lt;＆gt;，＆gt;，＆gt; =，！=，得到'LIKE''

如果我将$this->getDoctrine()->getManager() ->getRepository('XYZBundle:Company') ->createQueryBuilder('c') ->select('COUNT(c.id)') ->where("(SELECT MIN(u.surname) FROM XYZBundle:Contact u where u.id = c.id) LIKE '%a%'") ->getQuery() ->getResult(); 更改为LIKE '%a%'，一切正常，但我需要喜欢。为什么这个查询不起作用？