diff --git a/master_data_nodes.md b/master_data_nodes.md
index 8d7ce71..c8aa15a 100644
--- a/master_data_nodes.md
+++ b/master_data_nodes.md
@@ -1,8 +1,8 @@
 CREATE TABLE mast.node
 (
-    id bigint PRIMARY KEY IDENTITY GENERATED BY DEFAULT
+    id bigint GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY 
     ,nam text
-    ,sch type
+    ,sch text
     ,doc jsonb
 
 )