> I was on linux, although I just installed 8.0b2 dev 3 to my windows box > and tried #2 and still got a success.
Let me guess - did you use psql? I found that mentioned scenarios run successfuly under psql but pgAdmin's console and PHP driven invocation lead to fail (even with own Slackware 10 driven host server under pgsql 8.0.0 beta 2 (seems to be the same as you)). > Are you sure that the constraint wasn't deferred and/or that you weren't > doing this inside a function? As i told, under pgAdmin's console and PHP it fails anyway but psql falls only with function invocation. > In the former case there's a reading of spec > question for the timing of the actions (are they on the statement or at > check time -- we've done the latter although a rereading implies that we > may have previously read it wrong) and the latter, up until Tom's very > recent patch, any AFTER triggers (or foreign keys) waited until the end of > the original statement from the user to run. I misunderstood this sentence... Do you wanna told me that within single statements batch there could be non-serializable execution? If true then it seems to be a architectual issue (i could expect parallel execution within single sql statement but all constraints have to be checked right after it finished - not before and not after, just at a statement execution finish moment). Otherwise it is a bug anyway, imho. In attachment you'll find sample scenarios that lead psql to fail under *nix. NB: Scripts have to be placed at /tmp folder otherwise you'll need to fix check_uq.sh. ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])