On Jul 8, 2005, at 5:03 AM, Thomas Guettler wrote:

>
> Since Durus is very much like ZODB, this link might help, too:
>
> http://www.zope.org/Wikis/ZODB/FrontPage/guide/
> node6.html#SECTION000630000000000000000
> "5.3 BTrees Package"


Thanks for the link.

I noticed one thing there that would be different in Durus.
In ZODB, you should never use Persistent instances as keys
in a BTree because it is not compatible with ZODB's conflict
resolution.  Durus doesn't attempt any conflict resolution, so
this restriction isn't mandatory.  I would always prefer
keys that are really immutable, though.