text: --+ holdcas on;
  -- create class attribute same name as instance attribute
  
  create class picture
  (caption set string,
   image string);
   
   insert INTO picture VALUES ({'s'},'s');
   
   create class meal
  class attribute (menu string)
  (menu picture);
   
   select * FROM db_attribute WHere class_name='meal' order by 1,2,3;
   
   SELECT picture INTO a FROM picture where image='s' ;
   
   INSERT INTO meal VALUES (a);
   
   SELECT * FROM meal;
   
   
   DROP picture;
   
   DROP meal;
  --+ holdcas off;
  