From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
---|---|
To: | "Karl O(dot) Pinc" <kop(at)meme(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Why can't I put a BEFORE EACH ROW trigger on a view? |
Date: | 2007-02-25 00:25:54 |
Message-ID: | 45E0D792.1090504@commandprompt.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Karl O. Pinc wrote:
> Hi,
>
> I want to do some additional data validation
> when data is changed through a view, and
> I want pretty exception messages, and I want to
> do some slightly complex processing when
> determining what data to update where in
> what order.
>
> So, I figured I'd make a table, put some
> BEFORE EACH ROW triggers on it to do
> all the tricky stuff, sometimes including
> changing other tables, and then put a
> SELECT rule on the table to make it look
> like a view.
>
> Turns out there's undocumented restrictions,
> and this turns the table into a view which
> then can't have triggers on it.
huh?
create your table, create your triggers on the table.
Use a view on top of the table for viewing (there is no such thing as a
select rule (well there is, but it is called a view)).
Sincerely,
Joshua D. Drake
Sincerely,
Joshua D. Drake
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