[ZODB-Dev] Undo differences between Z2 and Z3

Jim Fulton jim at zope.com
Fri May 19 07:18:20 EDT 2006


Chris Withers wrote:
> Jim Fulton wrote:
> 
>> Chris Withers wrote:
>>
>>> Jim Fulton wrote:
>>>
>>> Even if you did track reads, how would you distinguish an "unsafe" 
>>> read as above from a "normal" read that shouldn't cause a conflict?
>>
>>
>> A write (or the undo of a write) would conflict with any reads in later
>> transactions.
> 
> 
> Wouldn't that, in effect, make just about all transactions conflict?

Possibly.

Jim

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