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
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