NHibernate 3 和 MySQL 中多重查询的语法错误

发布于 2024-10-06 19:28:56 字数 1357 浏览 5 评论 0原文

我曾经能够使用 MySQL 在 NHibernate 2.1 中将以下代码作为多重查询运行

var total = new LeagueInfoQuery { Count = true, User = CurrentUser }.CreateCriteria(session).FutureValue<int>();
var leagues = new LeagueInfoQuery { User = CurrentUser, PageSize = pageSize, Page = page, SortBy = sortBy, SortAsc = sortAsc }.CreateCriteria(session).Future<LeagueInfo>();
var results = PaginationHelper.CreateCustomPage<LeagueInfo>(leagues, pageSize, page, total.Value);

，其中例如 LeagueInfoQuery 只是一个可以创建标准 ICriteria 的自定义查询对象。

但是，自从升级到 NHibernate 3.0 后，我现在遇到语法错误。异常信息如下。

{“执行多条件时出错： [SELECT count(*) as y0_ FROM League this_ WHERE this_.User = ?p0;\r\n选择 this_.Id 作为 y0_, this_.Name 为 y1_, min(f1_.Date) 为 y2_, max(f1_.日期) 作为 y3_, 计数（不同的 t2_.Id）为 y4_ FROM 联盟 this_ 内联 团队 t2_ on this_.Id=t2_.League 内连接 赛程 f1_ on this_.Id=f1_.League WHERE this_.User = ?p1 GROUP BY this_.Name ORDER BY y0_ desc 限制 ?p1;\r\n]"}

内部异常：

{“您的 SQL 中有错误句法;检查手册对应你的MySQL服务器正确使用语法的版本靠近 ''b68d9d4e-a958-4fb8-8490-9e4401572f38'' 在第 1 行”}

所以它看起来像一个语法错误，但这在 v2.1 中不会发生，如果我编辑消息中的 SQL，以便参数是我可以让它工作的值。

那么为什么会这样NHibernate 3.0 中现在出现错误吗？我是否需要特别针对 MySQL 语法进行配置，如果需要的话怎么办

？

原文

I used to be able to run the following code as a multi query in NHibernate 2.1 using MySQL

var total = new LeagueInfoQuery { Count = true, User = CurrentUser }.CreateCriteria(session).FutureValue<int>();
var leagues = new LeagueInfoQuery { User = CurrentUser, PageSize = pageSize, Page = page, SortBy = sortBy, SortAsc = sortAsc }.CreateCriteria(session).Future<LeagueInfo>();
var results = PaginationHelper.CreateCustomPage<LeagueInfo>(leagues, pageSize, page, total.Value);

where e.g. LeagueInfoQuery is just a custom query object that can create a standard ICriteria.

However, since upgrading to NHibernate 3.0 I now get a syntax error. The exception message is as follows.

{"Error executing multi criteria :
[SELECT count(*) as y0_ FROM League
this_ WHERE this_.User =
?p0;\r\nSELECT this_.Id as y0_,
this_.Name as y1_, min(f1_.Date) as
y2_, max(f1_.Date) as y3_,
count(distinct t2_.Id) as y4_ FROM
League this_ inner join Team t2_
on this_.Id=t2_.League inner join
Fixture f1_ on this_.Id=f1_.League
WHERE this_.User = ?p1 GROUP BY
this_.Name ORDER BY y0_ desc limit
?p1;\r\n]"}

Inner Exception:

{"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
''b68d9d4e-a958-4fb8-8490-9e4401572f38''
at line 1"}

So it looks like a syntax error but this didn't use to happen in v2.1 and if I edit the SQL in the message so that the parameters are values I can get it to work.

So why is this error now occurring in NHibernate 3.0? Do I need to configure something in particular for MySQL syntax and if so what?

Cheers.

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