lib/bmg/operator/project.rb in bmg-0.3.0 vs lib/bmg/operator/project.rb in bmg-0.4.0

@@ -38,9 +38,13 @@
             seen[projected] = true
           end
         end
       end
 
+      def to_ast
+        [ :project, operand.to_ast, attrlist ]
+      end
+
     protected ### optimization
 
       def _restrict(type, predicate)
         operand.restrict(predicate).project(attrlist)
       end