| From: | Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> |
|---|---|
| To: | stan <stanb(at)panix(dot)com>, pgsql-general(at)lists(dot)postgresql(dot)org |
| Subject: | Re: A question about rules |
| Date: | 2020-01-18 16:56:06 |
| Message-ID: | ea5d5d07-4167-6933-9862-eb3d9d1fa996@aklaver.com |
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| Lists: | pgsql-general |
On 1/18/20 8:53 AM, stan wrote:
> So, I just discovered the rules system. As I understand it, it can be used
> to rewrite queries before they are passed to the query processor.
>
> I was wondering if I could use this to resolve a long standing frustration
> of mine. I often need to declare a column as NON NULL, and create a
> trigger/function to auto populate it with something more complex than a
> simple sequence. This need arises fairly often for me, and I would like to
> come up with a good way to implement this.
Stay away from rules, they will only drive you to distraction. Stick
with triggers they are a lot easier to understand and implement.
>
> Sorry for such a newbie question.
>
--
Adrian Klaver
adrian(dot)klaver(at)aklaver(dot)com
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