[ZODB-Dev] The write skew issue

Dieter Maurer dieter at handshake.de
Wed Jan 30 13:11:25 EST 2008


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.



-- 
Dieter


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