29.04.2011 21:18, Kevin Grittner wrote:
Vlad Arkhipov wrote:
But even if it would work it would not help me anyways. Because my
constraint is much more complex and depends on other tables, I
cannot express it in terms of exclusion constraints.
Are you aware of the changes to the SERIALIZABLE transaction
isolation level in the upcoming 9.1 release?
http://wiki.postgresql.org/wiki/Serializable
http://wiki.postgresql.org/wiki/SSI
If you can wait for that, it might be just what you're looking for.
-Kevin
I would not like to make the whole transaction serializable because of
performance and concurrency reasons.
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