Re: Typo in the Section "3.6. Inheritance"
| От | David G. Johnston |
|---|---|
| Тема | Re: Typo in the Section "3.6. Inheritance" |
| Дата | |
| Msg-id | CAKFQuwYPV+Aw9JjbO5CX-8D5AFbZkwH9zuWpSt53JEEWBi3_Ew@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Typo in the Section "3.6. Inheritance" (Bruce Momjian <bruce@momjian.us>) |
| Ответы |
Re: Typo in the Section "3.6. Inheritance"
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| Список | pgsql-docs |
On Fri, Aug 21, 2020 at 4:36 PM Bruce Momjian <bruce@momjian.us> wrote:
On Wed, Aug 5, 2020 at 11:29:31PM -0700, David G. Johnston wrote:
> Removing "char" from the tutorial is a nice side-effect that we probably want
> to do even if we keep "state".
I think CHAR(2) is fine because it is always 2 characters.
You imply "it is always two non-blank characters" though that isn't what CHAR(2) means. Adding CHECK (state ~ '^[A-Z]{2}$') and leaving the type as text would be best from a pure model perspective - but this isn't the place to teach that and for the same reason char(2) isn't terrible.
How is the attached patch, based on your suggestions?
Works for me.
David J.
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