Re: ALTER TABLE TODO items

scott.marlowe <scott.marlowe@ihs.com>

From: "scott.marlowe" <scott.marlowe@ihs.com>
To: Richard Huxton <dev@archonet.com>
Cc: Bruce Momjian <pgman@candle.pha.pa.us>, Tom Lane <tgl@sss.pgh.pa.us>, Robert Treat <xzilla@users.sourceforge.net>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2004-05-06T15:47:13Z
Lists: pgsql-hackers
On Thu, 6 May 2004, Richard Huxton wrote:

> Bruce Momjian wrote:
> > Tom Lane wrote:
> > 
> >>Richard Huxton <dev@archonet.com> writes:
> >>
> >>>Does that mean I'll want to disable triggers while I do this?
> >>
> >>Hrm.  Right now the code does not fire triggers at all, but that seems
> >>wrong.  However, I doubt that very many triggers could cope with update
> >>events in which the old and new rows have different rowtypes :-(.
> >>Any thoughts what to do about that?
> > 
> > 
> > If triggers exist, I think we should just throw a warning that triggers
> > will not be fired.
> 
> Tom's point about triggers probably not working after the upgrade is a 
> good one though. Is it reasonable to just refuse to act on a table until 
>   all triggers are dropped? I'd rather be forced to go through and 
> drop/restore triggers in a script than be surprised later on.

How about "cascade drop triggers" as an option so you can still do it in 
one line should you want to?