Re: Rule Question

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От bricklen
Тема Re: Rule Question
Дата
Msg-id CAGrpgQ88rsusupvW7UhKXsqwfKbBz566kbd8Uny0vH5MixMsZg@mail.gmail.com
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Ответ на Re: Rule Question  (Giuseppe Broccolo <giuseppe.broccolo@2ndquadrant.it>)
Ответы Re: Rule Question  (Giuseppe Broccolo <giuseppe.broccolo@2ndquadrant.it>)
Список pgsql-general

On Thu, Jul 25, 2013 at 4:18 AM, Giuseppe Broccolo <giuseppe.broccolo@2ndquadrant.it> wrote:
            (TG_OP = 'UPDATE' AND
                (NEW.b != OLD.b OR
                    (NEW.b IS NULL AND OLD.b IS NOT NULL) OR
                    (NEW.b IS NOT NULL AND OLD.b IS NULL)
                )
        ) THEN



Unrelated to the OP's question, the suggestion above could be more simply rewritten as

TG_OP = 'UPDATE'
AND NEW.b IS DISTINCT FROM OLD.b

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