[ZODB-Dev] Version thoughts

[Christian Theune]

Hi,

Jim Fulton wrote:
> 
> I've been thinking about various ways to clean up ZODB.
> 
> For a while I've threatened to get rid of versions.  I've been
> convinced by various arguments by various people that it is
> less work to keep them, at least for the foreseeable future.
> This is because there are certain limited legitimate use cases
> that they satisfy.
> 
> I wish, however, to try to limit their impact on the rest of
> ZODB.  I intend to continue a recent trend of reducing their
> impact on the ZODB and ZEO code by providing a low quality of
> service for them.  For example, ZEO client storages don't bother
> to cache version data.  I just did a quick scan of the DB and
> Connection code and see opportunities like eliminating the
> modified-in-version cache, eliminating version-aware object-cache
> policies and possibly eliminating connection pools for version data.

Just in case this got off the radar: Zope 2 doesn't support version 
objects any more, in the sense, that you can not create new ones. This 
should be the case since 2.8 IIRC.

Christian

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