From: Tom Lane <tgl@sss.pgh.pa.us>
To: Albrecht Berger <berger1517@gmx.ch>
Cc: pgsql <pgsql-sql@postgresql.org>
Subject: Re: trigger : emulate "instead of" with before ?
Date: Fri, 13 Jun 2003 09:57:25 -0400
Message-ID: <352.1055512645@sss.pgh.pa.us> (raw)
In-Reply-To: <046801c331a2$0c483e70$a07ba8c0@wxp>
References: <046801c331a2$0c483e70$a07ba8c0@wxp>
"Albrecht Berger" <berger1517@gmx.ch> writes:
> I need a trigger which is updating a delete flag of a row instead of
> deleting it physically.
> How do I implement a trigger which doesn't execute a delete without raising
> an exception in plsql ?
If the BEFORE DELETE trigger returns NULL, the delete is skipped.
regards, tom lane
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, berger1517@gmx.ch
Subject: Re: trigger : emulate "instead of" with before ?
In-Reply-To: <352.1055512645@sss.pgh.pa.us>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox