1.1--- a/lisp/lib/obj/query.lisp	Sun Jul 28 21:32:32 2024 -0400
     1.2+++ b/lisp/lib/obj/query.lisp	Sun Jul 28 21:47:57 2024 -0400
     1.3@@ -166,9 +166,8 @@
     1.4 ;;; Dataframes
     1.5 ;; minimal data-frame abstraction. methods are prefixed with 'DF-'.
     1.6 (defclass data-frame ()
     1.7-  ((plan :type logical-plan :accessor df-plan :initarg :plan)))
     1.8-
     1.9-(defmethod schema ((self data-frame)) (schema (df-plan self)))
    1.10+  ((fields :initform #() :initarg :fields :accessor df-fields)
    1.11+   (data :initform #() :initarg :data :accessor df-data)))
    1.12 
    1.13 (defgeneric df-col (self))
    1.14