Heikki Linnakangas <[email protected]> writes:
> Hmm, the first UPDATE should've blocked already. It should've fired a RI
> trigger to lock the parent tuple in shared mode, but it looks like
> that's not happening for some reason.
Read the special code in AfterTriggerSaveEvent. This behavior is
exactly what is expected --- since the referencing field didn't
change, only the second update attempt actually fires the trigger.
regards, tom lane
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