diff --git a/FreeSql.Tests/FreeSql.Tests/FreeSql.Tests.xml b/FreeSql.Tests/FreeSql.Tests/FreeSql.Tests.xml
index 5b80bfb0..7fce6993 100644
--- a/FreeSql.Tests/FreeSql.Tests/FreeSql.Tests.xml
+++ b/FreeSql.Tests/FreeSql.Tests/FreeSql.Tests.xml
@@ -464,5 +464,54 @@
部门对象
+
+
+ 入学年份
+
+
+
+
+ 学段
+
+
+
+
+ 人数
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 待标注
+
+
+
+
+ 合格
+
+
+
+
+ 不合格
+
+
+
+
+
diff --git a/FreeSql/Internal/UtilsExpressionTree.cs b/FreeSql/Internal/UtilsExpressionTree.cs
index c3aa32ac..f175d6ae 100644
--- a/FreeSql/Internal/UtilsExpressionTree.cs
+++ b/FreeSql/Internal/UtilsExpressionTree.cs
@@ -195,6 +195,9 @@ namespace FreeSql.Internal
col.DbInsertValue = colattr.ServerTime == DateTimeKind.Local ? common.Now : common.NowUtc;
}
+ if (trytb.Columns.ContainsKey(colattr.Name)) throw new Exception($"ColumnAttribute.Name {colattr.Name} 重复存在，请检查（注意：不区分大小写）");
+ if (trytb.ColumnsByCs.ContainsKey(p.Name)) throw new Exception($"属性名 {p.Name} 重复存在，请检查（注意：不区分大小写）");
+
trytb.Columns.Add(colattr.Name, col);
trytb.ColumnsByCs.Add(p.Name, col);
columnsList.Add(col);