diff --git a/AsbCloudDb/Model/AsbCloudDbContext.cs b/AsbCloudDb/Model/AsbCloudDbContext.cs
index 5c03fdff..1fe8e610 100644
--- a/AsbCloudDb/Model/AsbCloudDbContext.cs
+++ b/AsbCloudDb/Model/AsbCloudDbContext.cs
@@ -751,5 +751,10 @@ namespace AsbCloudDb.Model
             });
 
         }
+
+        public Task<int> RefreshMaterializedViewAsync<TEntity>(string? mwName = null, CancellationToken token = default) where TEntity : class
+        {
+            throw new System.NotImplementedException();
+        }
     }
 }