almost all working

src/metabase/driver/query_processor.clj

@@ -70,7 +70,7 @@
     (qp (if (or (not (= ag-type :rows)) breakout fields) query
             (-> query
                 (assoc-in [:query :fields-is-implicit] true)
-                (assoc-in [:query :fields] (->> (sel :many :fields [Field :name :base_type :special_type :table_id :id :position], :table_id source-table-id, :active true,
+                (assoc-in [:query :fields] (->> (sel :many :fields [Field :name :base_type :special_type :table_id :id :position :description], :table_id source-table-id, :active true,
                                                      :preview_display true, :field_type [not= "sensitive"], :parent_id nil, (k/order :position :asc), (k/order :id :desc))
                                                 (map expand/rename-mb-field-keys)
                                                 (map expand/map->Field)

src/metabase/driver/query_processor/expand.clj

@@ -141,7 +141,7 @@
 
     ;; Re-bind *field-ids* in case we need to do recursive Field resolution
     (binding [*field-ids* (atom #{})]
-      (let [fields (->> (sel :many :id->fields [field/Field :name :base_type :special_type :table_id :parent_id :position], :id [in field-ids])
+      (let [fields (->> (sel :many :id->fields [field/Field :name :base_type :special_type :table_id :parent_id :position :description], :id [in field-ids])
                         (m/map-vals rename-mb-field-keys)
                         (m/map-vals #(assoc % :parent (when (:parent-id %)
                                                         (ph (:parent-id %))))))]
@@ -236,6 +236,7 @@
                   ^Integer table-id
                   ^String  table-name
                   ^Integer position
+                  ^String  description
                   ^Integer parent-id
                   parent] ; Field once its resolved; FieldPlaceholder before that
   IResolve