Re: NULL in IN clause

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От David Dick
Тема Re: NULL in IN clause
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Msg-id 4356B00C.2040702@iprimus.com.au
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Ответ на NULL in IN clause  (Havasvölgyi Ottó <h.otto@freemail.hu>)
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As i understand it, the use of NULL in SQL means the value of the column
is unknown.  Therefore that result would seem fair.

Havasvölgyi Ottó wrote:
> Hi,
>
> I have just run this command on 8.0.4 :
>
> SELECT 'foo' WHERE 0 NOT IN (NULL, 1);
>
> And it resulted is zero rows.
> Without NULL it is OK.
> Is this a bug, or the standard has such a rule?
>
> Best Regards,
> Otto
>
>
>
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