[Zope3-dev] DISCUSS: Zope3 and Zope2's version object

[Hannu Krosing]

Guido van Rossum wrote:
> 
> > Where would you store the modified version then ?
> 
> Same place as where you keep it in general until you commit a
> transaction.  I.e. it's the application's problem.

I know that most ZODB storages do it somewhat like that, but for 
example in a typical SQL database I do not have to keep my data 
in the application until I commit it - it is just in logically 
separate space in the DB server.

When I want to have _long-running_ transactions I would definitely 
want the DB to cooperate in managing them and not just keeping info 
that something is locked. Of course we may be speaking of 
different levels of DB - in some circumstances it may be useful to
keep the currently modified data in different storages for 
performance/space/other reasons.

Or am I already completely lost in renaming (version->variant->lock :) ?

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Hannu