Re: Triggers on system catalog

On Wed, Mar 30, 2011 at 9:59 AM, David Fetter <david@fetter.org> wrote:
> On Tue, Mar 29, 2011 at 08:21:04PM -0400, Robert Haas wrote:
>> On Mar 29, 2011, at 2:17 PM, Christopher Browne <cbbrowne@gmail.com> wrote:
>> > A proposal to adding triggers to system catalog tables won't be
>> > terribly popular.
>>
>> Well, I'd support it if I thought it had any chance of actually
>> working, but I don't.
>>
>> I do think we need some kind way of capturing DDL events, though. I
>> wonder if the object-access-hook stuff KaiGai and I did to support
>> SE-PostgreSQL could be extended to meet this need...
>
> Jan Wieck sketched out a proposal, which I'll post in more detail when
> I've transcribed it and checked that with him.  Part of it is to fire
> triggers on the command completion code, and there are some code
> cleanups that that would depend on.

See <http://wiki.postgresql.org/wiki/DDL_Triggers>

That already captured an understanding of this, which might already be
nearly adequate.
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