> A "triggered data change violation" happens everytime you change twice
> within a transaction a value (column) that is part of a foreign key
> constraint (don't recall exactly which part).
>
> This error shouldn't really happen, but I recall there were some
> implementation and definition problems with deferred constraints.
>
> ...FAQ alert...
Yes, I just got it in the TODO list a few weeks ago:
* INSERT & UPDATE/DELETE in transaction of primary key fails with
deferredTriggerGetPreviousEvent or "change violation" [foreign]
I personally think we could do better on the wording of that error
message, at least until we get it fixed.
--
Bruce Momjian | http://candle.pha.pa.us
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+ If your life is a hard drive, | 830 Blythe Avenue
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