[ZODB-Dev] Re: [Zope-dev] Re: 64-bit BTrees

[Dieter Maurer]

Chris Withers wrote at 2006-4-18 08:34 +0100:
> ...
>If having two isn't acceptable, then why do we have an I and O BTree's, 
>not to mention the special ones used for in-memory ZODB indexes? Surely 
>we should just have one BTree class?

Using "I" versus "O" BTrees makes a huge difference for mass operations
(as those used for cataloguing and set operations).

The difference is surely much smaller for "I" versus "L" BTrees -- but
it will be measurable for many catalog searches.


-- 
Dieter