Re: Trigger usecase

From: sud <suds1434(at)gmail(dot)com>
To: Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
Cc: pgsql-general <pgsql-general(at)lists(dot)postgresql(dot)org>
Subject: Re: Trigger usecase
Date: 2024-07-30 18:46:01
Message-ID: CAD=mzVVOC=H9zhYn5YF74XMV+7023f5hPvcroSaQu61m7q-yCg@mail.gmail.com
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On Tue, Jul 30, 2024 at 10:54 PM Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>
wrote:

>
> It is largely a matter of taste.
>
> The advantage of a trigger is that it works even if somebody bypasses the
> application
> to insert data.
>
> I think that triggers are easy to debug, but again, that's a matter of
> taste.
>
>
> Thank you David and Laurenz.

Creating triggers to populates some audit table or say populating data in
audit columns (created_by, updated_by,created_date,updated_date) is fine i
believe, however this use case was to load/persist data in table with SCD-2
style, so is it good idea to use the trigger for such use case?

Not sure of the exact pros and cons, but we were following certain rules
like , if it's business logic which needs to be implemented in Database,
then it should not be done using triggers but rather should be done through
database procedure/functions. Hope this understanding correct.

Regards
Sud

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