Are check constraints always evaluated on UPDATE?

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От bubba postgres
Тема Are check constraints always evaluated on UPDATE?
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Msg-id BANLkTim8FD8yBH8EUFZcJUe6VO90xX+HDQ@mail.gmail.com
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Ответы Re: Are check constraints always evaluated on UPDATE?
Список pgsql-general
Are there any optimizations around check constraints such that they will not be evaluated if constituent columns are not updated?

Regards,
-JD

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