质朴的Sql生成，LINQ和ASP.NET MVC

Question

我有以下代码：

if (collection["Filter"] == "2") { 
    presentations = presentations.Where(x => x.Speaker.FirstName.StartsWith("B")). 
    OrderBy(x => x.Speaker.FirstName); 
} 

此生成的SQL语句：

SELECT [t0].[Description], [t0].[EventId], [t0].[Id], [t0].[PresentedOn], 
     [t0].[Slug], [t0].[SpeakerId], [t0].[Title], [t0].[Url] 
FROM [Presentations] AS t0 
LEFT OUTER JOIN [Speakers] AS t1 ON ([t1].[Id] = [t0].[Id]) 
WHERE ([t1].[FirstName] LIKE 'B' + '%') 
ORDER BY [t1].[FirstName] 

的问题是加盟应该是：

LEFT OUTER JOIN [Speakers] AS t1 ON ([t1].[Id] = [t0].[SpeakerId]) 

任何想法如何解决这个问题？链接到ASP.NET MVC2 Linq Where Clause using StartsWith

Answer 1

我不认为SubSonic Linq提供程序非常“成熟”。