## v0.3.20

- 修复 ToList 选择指定对象时，应附加所有字段查询返回；
- 修复 Lazy 延时类与实体关系冲突 bug；
- 修复 附加对象读取时，记录为空应该返回null，而不是返回非null（字段默认值）对象；

FreeSql.Tests/UnitTest1.cs

@@ -12,7 +12,7 @@ namespace FreeSql.Tests {
 	public class UnitTest1 {
 
 		public class Order {
-			[Column(IsPrimary = true)]
+			[Column(IsIdentity = true)]
 			public int Id { get; set; }
 			public string OrderTitle { get; set; }
 			public string CustomerName { get; set; }
@@ -20,7 +20,7 @@ namespace FreeSql.Tests {
 			public virtual List<OrderDetail> OrderDetails { get; set; }
 		}
 		public class OrderDetail {
-			[Column(IsPrimary = true)]
+			[Column(IsIdentity = true)]
 			public int Id { get; set; }
 
 			public int OrderId { get; set; }
@@ -34,6 +34,10 @@ namespace FreeSql.Tests {
 
 			public DbSet<Order> Orders { get; set; }
 			public DbSet<OrderDetail> OrderDetails { get; set; }
+
+			protected override void OnConfiguring(DbContextOptionsBuilder builder) {
+				builder.UseFreeSql(g.mysql);
+			}
 		}
 
 		[Fact]