播放框架ebean RawSql分页

Question

是否可以在自定义SQL查询中使用分页？例如，当我设置此查询时：

String sql =
          "SELECT   q.event_id              AS event_id,"
        + "         MIN(q.total_price)      AS price_min, "
        + "         MAX(q.total_price)      AS price_max "
        + "FROM     quote q "
        + "WHERE    q.quote_status_id = 2 "
        + "    AND  q.event_id IS NOT NULL "
        + "GROUP    BY q.event_id";

RawSql rawSql = RawSqlBuilder.unparsed(sql)
        .columnMapping("event_id", "event.id")
        .columnMapping("price_min", "priceMin")
        .columnMapping("price_max", "priceMax")
        .create();

com.avaje.ebean.Query<salesPipelineRow> ebeanQuery = Ebean.find(salesPipelineRow.class);

ebeanQuery.setRawSql(rawSql);

然后...I可以打电话给..。

List<salesPipelineRow> list = ebeanQuery.findList();

...without任何问题(例如，我得到一个有效的salesPipelineRow对象列表)。然而，当我试着做这样的事情时.

Page<salesPipelineRow> page = ebeanQuery.findPagingList(5).getPage(0);

...I获得一个空错误，如：

java.util.concurrent.ExecutionException: javax.persistence.PersistenceException: 
Query threw SQLException:You have an error in your SQL syntax; check the manual that corresponds to your MySQL     
server version for the right syntax to use near 'null t0
limit 6' at line 2
Bind values:[]

Query was:
select t0.price_min c0, t0.price_max c1, t0.event_id c2
from null t0
limit 6

有人能解释为什么FROM、WHERE和GROUP BY子句被"null“替换吗？

谢谢!

Answer 1

我想这必须在EBean邮件列表中运行(如果它仍然处于活动状态)。我认为EBean已经死了)。在我看来是个虫子。应该呈现的SQL是：

select t0.price_min c0, t0.price_max c1, t0.event_id c2
from (
    SELECT [... your raw SQL statement here ...]
) t0
limit 6