Still need to declare primary key in column lists

lib/nntp/tiny/message.py

@@ -57,6 +57,7 @@ class Message(DatabaseTable):
     name    = 'newsgroup_message'
     key     = 'id'
     columns = (
+        'id',
         'newsgroup_id',
         'created_on',
         'message_id',

lib/nntp/tiny/newsgroup.py

@@ -3,4 +3,4 @@ from nntp.tiny.db import DatabaseTable
 class Newsgroup(DatabaseTable):
     name    = 'newsgroup'
     key     = 'id'
-    columns = 'created_on', 'name', 'description',
+    columns = 'id', 'created_on', 'name', 'description',