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假设我有三个实体：

public class Kecamatan
{
    public int Id { get; set; }
    [Required]
    public string Nama { get; set; }
    [Required]
    public virtual Kota Kota { get; set; }
}


public class Kota
{
    public int Id { get; set; }
    [Required]
    public string Nama { get; set; }
    [Required]
    public virtual Propinsi Provinsi { get; set; }
}

public class EkstrakurikulerPembimbing
{
    public int Id { get; set; }
    public string Nama { get; set; }
    public string Alamat { get; set; }
    public string NoHp { get; set; }
    public virtual Kecamatan Kecamatan { get; set; }
    [Required]
    public virtual Ekstrakurikuler Ekstrakurikuler {get; set;}
}

当我有为空的EkstrakurikulerPembimbing记录时Kecamatan，我像这样查询它们：

_context
    .EkstrakurikulerPembimbing
    .Include(x => x.Kecamatan)
    .Include(x => x.Kecamatan.Kota)
    .Where(x => x.Ekstrakurikuler.Id == someInt)
    .ToList();

Ef 将生成如下查询：

EXEC sp_executesql N'SELECT 
[Extent1].[id] AS [id], 
[Extent1].[nama] AS [nama], 
[Extent1].[alamat] AS [alamat], 
[Extent1].[no_hp] AS [no_hp], 
[Extent2].[id] AS [id1], 
[Extent2].[nama] AS [nama1], 
[Extent2].[kota_id] AS [kota_id], 
[Extent3].[id] AS [id2], 
[Extent3].[nama] AS [nama2], 
[Extent3].[provinsi_id] AS [provinsi_id], 
[Extent1].[Ekstrakurikuler_Id] AS [Ekstrakurikuler_Id]
FROM   [dbo].[ekstrakurikuler_pembimbing] AS [Extent1]
LEFT OUTER JOIN [dbo].[kecamatan] AS [Extent2] ON [Extent1].[Kecamatan_Id] = [Extent2].[id]
INNER JOIN [dbo].[mst_kota] AS [Extent3] ON [Extent2].[kota_id] = [Extent3].[id]
WHERE [Extent1].[Ekstrakurikuler_Id] = @p__linq__0', N'@p__linq__0 int', @p__linq__0 = 1

由于INNER JOINto table mst_kota（与 entity 相关Kota），根本没有返回数据。

即使KecamataninEkstrakurikulerPembimbing为null，如何查询它们以返回数据，如果Kecamatan不为null，它会渴望加载？

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