[Zope] Structure for large schema

Andreas Jung lists at zopyx.com
Mon Apr 17 13:52:00 EDT 2006

--On 17. April 2006 14:42:24 -0300 David Pratt <fairwinds at eastlink.ca> 

> Hi Andreas. Yes, I have been thinking what type of object would be best.
> I was also thinking about putting whole zodb into rdb with something like
> PGStorage because my feeling is if I work with zodb strictly, it may bulk
> quickly. I guess this is another way of dealing with pickles which I have
> been contemplating but in a way that does not change the utility of
> objects in Zope. For my knowledge, how exactly are empty attributes dealt
> with in BTree so that if say 40 of 70 attributes are empty that it is
> handling this efficiently?

I don't know much about BTRee internals but all indexes use large and
sometimes complex BTree structures. Also nested BTrees aren't are problem.
I would say: 40-70 is nothing I would get bad sleep from.


ZOPYX Ltd. & Co. KG - Charlottenstr. 37/1 - 72070 Tübingen - Germany
Web: www.zopyx.com - Email: info at zopyx.com - Phone +49 - 7071 - 793376
E-Publishing, Python, Zope & Plone development, Consulting
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 186 bytes
Desc: not available
Url : http://mail.zope.org/pipermail/zope/attachments/20060417/3ea11053/attachment.bin

More information about the Zope mailing list