Thomas Lotze wrote at 2008-2-26 09:30 +0100:
Dieter Maurer wrote:
How often do you need it?
It is worse the additional index? Especially in view that a storage may
contain a very large number of transactions?
We've done it differently now anyway, using real iterators which store
their state on the server and get garbage-collected when no longer needed.
Fine. In dm.historical, you could find an alternative:
It uses exponentially increasing prefetching and
loads about 2*2**n records to get the first 2**n records.
This means, it has amortized linear runtime complexity.
--
Dieter
___
For more information about ZODB, see the ZODB Wiki:
http://www.zope.org/Wikis/ZODB/
ZODB-Dev mailing list - ZODB-Dev@zope.org
http://mail.zope.org/mailman/listinfo/zodb-dev
