Re: Truncate Triggers

On Thu, 2008-01-31 at 01:12 -0600, Decibel! wrote:
> On Mon, Jan 28, 2008 at 09:09:13PM -0300, Alvaro Herrera wrote:
> > Decibel! wrote:
> > > On Fri, Jan 25, 2008 at 11:40:19AM +0000, Simon Riggs wrote:
> > > > (for 8.4 ...)
> > > > I'd like to introduce triggers that fire when we issue a truncate:
> > > 
> > > Rather than focusing exclusively on TRUNCATE, how about "triggers" that
> > > fire whenever any kind of DDL operation is performed? (Ok, truncate is
> > > more DML than DDL, but still).
> > 
> > I don't think it makes sense in general.  For example, would we fire
> > triggers on CLUSTER?  Or on ALTER TABLE / SET STATISTICS?
> 
> CLUSTER isn't DDL. Most forms of ALTER TABLE are. And CREATE blah, etc.
> 
> My point is that people have been asking for triggers that fire when
> specific commands are executed for a long time; it would be
> short-sighted to come up with a solution that only works for TRUNCATE if
> we could instead come up with a more generic solution that works for a
> broader class of (or perhaps all) commands.

Seems a fair comment.

What set of commands would you want to fire triggers for, and why?

--  Simon Riggs 2ndQuadrant  http://www.2ndQuadrant.com