Entity framework Linq到实体计数不返回结果

我有以下linq查询，它生成了错误的sql（ProductId=PictureId）。我们刚刚切换到使用Devart Entity Developer自动生成POCO类，这个问题就出现了。映射在我看来是正确的，此查询以前返回了正确的结果。映射看起来是错误的还是查询本身从来都不正确

使用实体框架5.0

查询：

var totalResults = _productRepository.Table.Where(a => a.Pictures.Any()).Count();

SELECT 
[GroupBy1].[A1] AS [C1]
FROM ( SELECT 
    COUNT(1) AS [A1]
    FROM [dbo].[Product] AS [Extent1]
    WHERE  EXISTS (SELECT 
        1 AS [C1]
        FROM [dbo].[ProductPicture] AS [Extent2]
        WHERE [Extent1].[ProductId] = [Extent2].[PictureId] // this should be ProductId = ProductId
    )
)  AS [GroupBy1]

        modelBuilder.Entity<Picture>()
            .HasMany(p => p.Products)
                .WithMany(c => c.Pictures)
            .Map(manyToMany => manyToMany
                .ToTable("ProductPicture", "dbo")
                .MapLeftKey("ProductId")
                .MapRightKey("PictureId"));

SQL:

var totalResults = _productRepository.Table.Where(a => a.Pictures.Any()).Count();

SELECT 
[GroupBy1].[A1] AS [C1]
FROM ( SELECT 
    COUNT(1) AS [A1]
    FROM [dbo].[Product] AS [Extent1]
    WHERE  EXISTS (SELECT 
        1 AS [C1]
        FROM [dbo].[ProductPicture] AS [Extent2]
        WHERE [Extent1].[ProductId] = [Extent2].[PictureId] // this should be ProductId = ProductId
    )
)  AS [GroupBy1]

        modelBuilder.Entity<Picture>()
            .HasMany(p => p.Products)
                .WithMany(c => c.Pictures)
            .Map(manyToMany => manyToMany
                .ToTable("ProductPicture", "dbo")
                .MapLeftKey("ProductId")
                .MapRightKey("PictureId"));

Fluent映射：

var totalResults = _productRepository.Table.Where(a => a.Pictures.Any()).Count();

SELECT 
[GroupBy1].[A1] AS [C1]
FROM ( SELECT 
    COUNT(1) AS [A1]
    FROM [dbo].[Product] AS [Extent1]
    WHERE  EXISTS (SELECT 
        1 AS [C1]
        FROM [dbo].[ProductPicture] AS [Extent2]
        WHERE [Extent1].[ProductId] = [Extent2].[PictureId] // this should be ProductId = ProductId
    )
)  AS [GroupBy1]

        modelBuilder.Entity<Picture>()
            .HasMany(p => p.Products)
                .WithMany(c => c.Pictures)
            .Map(manyToMany => manyToMany
                .ToTable("ProductPicture", "dbo")
                .MapLeftKey("ProductId")
                .MapRightKey("PictureId"));

modelBuilder.Entity（）
.HasMany（p=>p.Products）
.有许多（c=>c.图片）
.Map（manytomy=>manytomy
.ToTable（“ProductPicture”、“dbo”）
.MapLeftKey（“产品ID”）
.MapRightKey（“PictureId”）；

图表：

var totalResults = _productRepository.Table.Where(a => a.Pictures.Any()).Count();

SELECT 
[GroupBy1].[A1] AS [C1]
FROM ( SELECT 
    COUNT(1) AS [A1]
    FROM [dbo].[Product] AS [Extent1]
    WHERE  EXISTS (SELECT 
        1 AS [C1]
        FROM [dbo].[ProductPicture] AS [Extent2]
        WHERE [Extent1].[ProductId] = [Extent2].[PictureId] // this should be ProductId = ProductId
    )
)  AS [GroupBy1]

        modelBuilder.Entity<Picture>()
            .HasMany(p => p.Products)
                .WithMany(c => c.Pictures)
            .Map(manyToMany => manyToMany
                .ToTable("ProductPicture", "dbo")
                .MapLeftKey("ProductId")
                .MapRightKey("PictureId"));

---

在Entity Developer的最新版本（5.7.276）中，DbContext模板中关联映射的错误已经修复。

我认为mapkey方法应该是另一种方法。左键为PictureId，右键为ProductId？您的右键。我以前试过，但没用。清洗溶液并再次翻转后，它开始工作。看起来EntityDeveloper的代码生成脚本完全错了。谢谢