db(~db.tags.code.belongs(db(db.tags.id==db.items.of_tag)._select(db.tags.code))).select(db.tags.code)
not the _ in the inner _select. On Jan 21, 8:54 am, vortex <[email protected]> wrote: > SELECT code FROM tags WHERE code NOT IN (SELECT code FROM tags JOIN > items ON tags.id=items.of_tag);

