diff --git a/database/create-schema.sql b/database/create-schema.sql
index 49df751..511f9c0 100644
--- a/database/create-schema.sql
+++ b/database/create-schema.sql
@@ -80,6 +80,35 @@ CREATE EXTENSION IF NOT EXISTS "uuid-ossp" WITH SCHEMA public;
 COMMENT ON EXTENSION "uuid-ossp" IS 'generate universally unique identifiers (UUIDs)';
 
 
+--
+-- Name: add_file_to_tag_recursive(uuid, uuid); Type: FUNCTION; Schema: data; Owner: -
+--
+
+CREATE FUNCTION data.add_file_to_tag_recursive(f_id uuid, t_id uuid) RETURNS SETOF uuid
+    LANGUAGE plpgsql
+    AS $$
+DECLARE
+	tmp uuid;
+	tt_id uuid;
+	ttt_id uuid;
+BEGIN
+	INSERT INTO data.file_tag VALUES (f_id, t_id) ON CONFLICT DO NOTHING RETURNING tag_id INTO tmp;
+	IF tmp IS NULL THEN
+		RETURN;
+	END IF;
+	RETURN NEXT t_id;
+	FOR tt_id IN
+		SELECT a.add_tag_id FROM data.autotags a WHERE a.trigger_tag_id=t_id AND a.is_active
+	LOOP
+		FOR ttt_id IN SELECT data.add_file_to_tag_recursive(f_id, tt_id)
+		LOOP
+			RETURN NEXT ttt_id;
+		END LOOP;
+	END LOOP;
+END;
+$$;
+
+
 --
 -- Name: uuid_extract_timestamp(uuid); Type: FUNCTION; Schema: public; Owner: -
 --
@@ -267,7 +296,7 @@ CREATE TABLE data.autotags (
 CREATE TABLE data.categories (
     id uuid DEFAULT public.uuid_v7() NOT NULL,
     name character varying(256) NOT NULL,
-    notes text,
+    notes text DEFAULT ''::text NOT NULL,
     color character(6),
     creator_id smallint NOT NULL
 );