Re: NOT ENFORCED constraint feature

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От Peter Eisentraut
Тема Re: NOT ENFORCED constraint feature
Дата
Msg-id 08667caa-c6d1-4693-a194-6474e1420db6@eisentraut.org
обсуждение исходный текст
Ответ на Re: NOT ENFORCED constraint feature  (Amul Sul <sulamul@gmail.com>)
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On 28.01.25 11:58, Amul Sul wrote:
>> This behavior is not correct:
>>
>> +-- Changing it back to ENFORCED will leave the constraint in the NOT
>> VALID state
>> +ALTER TABLE FKTABLE ALTER CONSTRAINT fktable_ftest1_fkey ENFORCED;
>> +-- Which needs to be explicitly validated.
>> +ALTER TABLE FKTABLE VALIDATE CONSTRAINT fktable_ftest1_fkey;
>>
>> Setting the constraint to enforced should enforce it immediately.  This
>> SQL statement is covered by the SQL standard.  Also, I think it's a
>> better user experience if you don't require two steps.
>>
> Let me clarify: the constraint will be enforced for new inserts and
> updates, but it won't be validated against existing data, so those
> will remain marked as invalid.

Yes, I understand, but that is the not the correct behavior of this 
command per SQL standard.



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