Re: NOVALIDATE in postgresql?

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От Adrian Klaver
Тема Re: NOVALIDATE in postgresql?
Дата
Msg-id 1473059680.167281235072986604.JavaMail.root@sz0030a.emeryville.ca.mail.comcast.net
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Ответ на NOVALIDATE in postgresql?  (SHARMILA JOTHIRAJAH <sharmi_jo@yahoo.com>)
Ответы Re: NOVALIDATE in postgresql?  (decibel <decibel@decibel.org>)
Список pgsql-general
----- "SHARMILA JOTHIRAJAH" <sharmi_jo@yahoo.com> wrote:

> Hi
> In Oracle I can use the NOVALIDATE for constraints... like this
> ALTER TABLE employee ADD
> CONSTRAINT emp_ck
>  CHECK (married IN ('Y','N')) NO VALIDATE;
>
> When the table is already populated this will be faster. Can you do
> the same in Postgresql?
> Thanks
> Sharmila

From the Oracle manual:
ENABLE NOVALIDATE means the constraint is checked for new or modified rows, but existing data may violate the
constraint.

So you are looking for an incomplete constraint?

Adrian Klaver
aklaver@comcast.net
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