java - hibernate hql sum case when then else end execution in java 问题

Question

我需要在 Java 中执行一个带有 sum when then else end 子句的 HQL 查询，它在 postgres 中运行没有问题:

SELECT r.reviewer_id,
  sum(case when c.service_type = 'مالتی مدیا' AND c.genre_id = '66c92962-324c-11e7-93ae-92361f002671' then 1 else 0 end) image_multimedia,
  sum(case when c.service_type is null AND c.genre_id = '66c92b1a-324c-11e7-93ae-92361f002671' then 1 else 0 end) image_null

 FROM module_samim.content c
  Join module_samim.content_reviewer r on c.id = r.content_id
  Join module_samim.file f on f.id = c.file_id
  Group by r.reviewer_id

我尝试使用 createQuery() 运行它，但我得到:

Sep 11, 2018 8:57:20 AM org.hibernate.hql.internal.ast.ErrorCounter reportError
ERROR: line 1:58: expecting "then", found 'مدیاAND'
line 1:58: expecting "then", found 'مدیاAND'
and

Sep 11, 2018 8:57:20 AM org.hibernate.hql.internal.ast.ErrorCounter reportError
ERROR: line 1:264: unexpected token: image_null
Sep 11, 2018 8:57:20 AM org.hibernate.hql.internal.ast.ErrorCounter reportError
ERROR: line 1:264: unexpected token: image_null
line 1:264: unexpected token: image_null

请帮帮我!谢谢!

Answer 1

语法好像是SQL，不是HQL。

因此，我们需要的不是这个

createQuery()

这样称呼

createSqlQuery()