| From: | "Richard Huxton" <dev(at)archonet(dot)com> |
|---|---|
| To: | <pgsql-general(at)postgresql(dot)org>, "Bruce Richardson" <brichard(at)cafod(dot)org(dot)uk> |
| Subject: | Re: Default values? |
| Date: | 2001-02-19 09:25:20 |
| Message-ID: | 00cd01c09a55$e27cc7e0$1001a8c0@archonet.com |
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| Lists: | pgsql-general |
From: "Bruce Richardson" <brichard(at)cafod(dot)org(dot)uk>
> If I wanted to create a table in such a way that the default value of
> one column is the value of another column (or the oid value), is there
> a way to do that in the CREATE TABLE statement (with the DEFAULT
> keyword, I'd imagine)? Or would I need to create a trigger?
>
> --
> Bruce
Trigger AFAIK. I've used functions in DEFAULTs but get errors with
references to another column. I presume it's because the system can't tell
whether your mean OLD.col or NEW.col
- Richard Huxton
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