Re: ALTER TABLE ... NOREWRITE option

On Wed, Dec 5, 2012 at 1:41 PM, Josh Berkus <josh(at)agliodbs(dot)com> wrote:
> That's why we need a mechanism which either logs, or aborts on specific
> actions. From the perspective of the DevOps staff, abort is possibly
> the better option, but there may be issues with it on our end. That was
> the attraction of the original NOREWRITE patch, although as I said that
> suffers from new keywords and a total lack of extensibility.

You know, event triggers seem like an awfully good solution to this
problem. All we'd need is a new event called table_rewrite:

CREATE EVENT TRIGGER my_event_trigger
ON table_rewrite
EXECUTE PROCEDURE consider_whether_to_throw_an_error();

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company