[ZODB-Dev] Re: IStorageIteration

[Jim Fulton]

On Feb 25, 2008, at 1:06 PM, Dieter Maurer wrote:

> Thomas Lotze wrote at 2008-2-12 11:09 +0100:
>> ...
>>> I don't think that's going to work here.  Iterating through the
>>> transactions in the database for each iteration is going to be  
>>> totally
>>> non-scalable.
>>
>> It seems to us that it would actually be the right thing to require  
>> that
>> storages have an efficient, scalable and stateless way of accessing  
>> their
>> transactions by ID. In the case of FileStorage, this might be  
>> achieved
>> using an index analogous to the one mapping object IDs to file  
>> positions.
>
> 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?


Dieter, thanks for this response. I missed this note of Thomas' the  
first time around. :)

I don't think this should be required.

Jim

--
Jim Fulton
Zope Corporation