Achilleas Mantzios - cloud <a.mantzios@xxxxxxxxxxxxxxxxxxxx> writes: > As you noticed the last trigger is a CONSTRAINT DEFERRABLE trigger. This > function mariner_update_availability_date is supposed to be run by a > user : cbt_results_import strippedof any privileges to the rest of the > system. Here is what we get : when we SET the constraint of the last > trigger to IMMEDIATE, the function runs on behalf of its owner > (postgres) who has all needed privileges (as superuser) to run the > update on mariner table and also run the triggers . However, when we run > with this CONSTRAINT as DEFERRED then it seems to NOT run the last > deferrable trigger as postgres. AFAIR the trigger mechanisms do not change the execution environment. If they did, then for example a trigger that stuffs CURRENT_USER into a last_updated_by column would not give the desired results. I'd suggest marking the problem trigger function as SECURITY DEFINER if you want it to run as its owner. regards, tom lane