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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