--- /dev/null
+-- @tag: assembly_parts_foreign_key
+-- @description: Erzeugniselement (assembly) erhält Fremdschlüssel auf parts + NOT NULL
+-- @depends: release_3_4_1
+-- @ignore: 0
+
+ALTER TABLE assembly ADD FOREIGN KEY (parts_id) REFERENCES parts(id);
+ALTER TABLE assembly ALTER COLUMN parts_id SET NOT NULL;