--- /dev/null
+-- IMPORTANT NOTICE
+--
+-- this down script is provided for convenience only
+-- DO NOT USE on an operational site
+-- the change in migration 003 involves creating
+-- the new view view_nodenetworks for fetching instances
+-- of NodeNetworks
+-- AND to alter NodeNetworks.py accordingly
+-- so this change cannot be easily undone
+-- unless you also revert the API itself
+
+DROP VIEW view_nodenetworks;
+
+DROP VIEW view_nodenetwork_settings;
+
+DROP VIEW nodenetwork_settings;
+
+DROP TABLE nodenetwork_setting;
+
+DROP TABLE nodenetwork_setting_types;
+
+-- deflate subversion
+UPDATE plc_db_version SET subversion = 2;
+SELECT subversion from plc_db_version;