diff --git a/DOAN.Service/MES/Material/MmMaterialService.cs b/DOAN.Service/MES/Material/MmMaterialService.cs
index aca121c..1e62b12 100644
--- a/DOAN.Service/MES/Material/MmMaterialService.cs
+++ b/DOAN.Service/MES/Material/MmMaterialService.cs
@@ -300,7 +300,7 @@ namespace DOAN.Service.BZFM
             var x = Context
                 .Storageable(materialList)
                 .SplitInsert(it => !it.Any())
-                .WhereColumns(it => new { it.Id, it.MaterialCode }) //如果不是主键可以这样实现（多字段it=>new{it.x1,it.x2}）
+                .WhereColumns(it => it.Id) //如果不是主键可以这样实现（多字段it=>new{it.x1,it.x2}）
                 .ToStorage();
             var result = x.AsInsertable.ExecuteCommand(); //插入可插入部分;