Hi Edwin, > > In fact, there is a function 'genKey' which generates keys, but this is > > different from how I understand the above autogenerated keys. 'genKey' > > simply returns a new number not yet existent in an index. > > i think this hits the nail squarely.
OK, good! I just misunderstood the autogenerated keys. > suppose there is a song entitled "evergreen". one was sung by barbra > streisand, the other by will young. different lyrics, but same song > title. > > i'd like to use SongTitle as a key, but it won;t cut it, as in the > example above. so i have to revert to something like an autoincrement > key. I see. So indeed 'genKey' can be used to generate some unique key. Another option, as you know, might be to define SongTitle as a non-unique key (+Ref), and build a unique key combination by '+Aux'ing the artist. It is not necessary, btw, for an Entity to have any unique key at all. You can 'collect' all songs with a non-unique SongTitle, or find them with Pilog. Cheers, - Alex -- UNSUBSCRIBE: mailto:picolisp@software-lab.de?subject=Unsubscribe
