> > Is there a way to do UNIQUE check after the whole table got updated ?
> > If not, any ideas to walk around the problem ?
> The closest thing I could think of would be a constraint trigger that did
> a uniqueness check but that'll probably be somewhat slower (a trigger that
> looks for something like: select lft from areas group by lft having
> count(*)>1;)
How can I rollback in a function ?
I mean after update has been done, I do some checking in the Function and
then decide that I want to quit and rollback all what inserted/updated in
the start of the function ?
Also if I attach trigger that check column uniqueness to an update will it
check it per updated row or at the end of the action after all the table got
updated ?
Cheer
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