Entity framework EntityFramework 4.1 DbContext选择添加带其他字符的强制转换列

我正在从dbcontext执行标准GetAll（）：

 DbContext.Set<T>()

DbContext.Set（）

然而，我从甲骨文那里得到了一个奇怪的信息：

{“ORA-00904:\“Extent1\”\“Sub\u Object\u ID\”：无效标识符“}

如果我查看生成的sql（通过查看查询变量），我会看到在最后添加了一些变量作为强制转换

"Extent1"."SomeEntity_ID",                            <-- correct
"Extent1"."SomeEnttiy2_ID",                           <-- correct
"Extent1"."Sub_Object",                               <-- correct

CAST( "Extent1"."SomeEntity_ID1" AS number(10,0)) AS "C3",  <-- "1" appended
CAST( "Extent1"."SomeEnttiy2_ID1" AS number(10,0)) AS "C4", <-- "1" appended
CAST( "Extent1"."Sub_Object_ID" AS number(10,0)) AS "C5",   <-- "_ID" appended
...
FROM "dbo"."MyEntity" "Extent1"

---

“Extent1”、“SomeEntity\u ID”这只是配置外键的问题。我仍然不理解这种默认行为的意图（为每个外文添加一组select列，并附加“1”）

但是声明外键可以解决这个问题

通过fluent API：

modelBuilder.Entity<FirmPerson>()
    .HasRequired(f => f.Firm)
    .WithMany(p => p.FirmPerson)
    .HasForeignKey(f => f.FirmID);

modelBuilder.Entity<FirmPerson>()
    .HasRequired(f => f.Firm)
    .WithMany(p => p.FirmPerson)
    .HasForeignKey(f => f.FirmID);

    public int FirmID { get; set; }

    [ForeignKey("FirmID")]
    public virtual Firm Foo { get; set; }