Mike Nolan <[EMAIL PROTECTED]> writes:
> Yes it does. OK, that means Tom's original suggestion of checking
> the other table for the same value before updating it should prevent
> an infinite loop, providing that's done from a pair of 'after update'
> triggers, using the NEW.column entries in the triggered table to update
> the other table.
Actually, I wasn't thinking very clearly. The easiest way to break
the loop is to avoid updating the other table when OLD.x = NEW.x
in the trigger's arguments. The other way requires a rather-redundant
SELECT to see what is in the other table.
regards, tom lane
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