[ZODB-Dev] The write skew issue

[Christian Theune]

Hi,

Dieter Maurer schrieb:
> Christian Theune wrote at 2008-1-29 16:32 +0100:
>> ...
>> When I looked up the definitions in Wikipedia about isolation and 
>> serializability again I didn't find any hint about the conditions how to 
>> decide which ordering is preferred.
> 
>>From Wikipedia ("http://en.wikipedia.org/wiki/Serializable_%28databases%29"):
> 
>   A schedule is serializable, if its outcome ... is equal
>   to the outcome of its transactions ececuted sequentially without
>   overlapping.
> 
> I interpret this as "any ordering" of the transactions will do.

That would mean that the write skew phenomenon that you found would be 
valid behaviour, wouldn't it? Am I missing something?

Christian

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