On Fri, Oct 19, 2012 at 10:29 AM, Andrew Dunstan <andrew@dunslane.net> wrote:
> As you can see, in the case of rewrite it takes us back 7 1/2 years. I know
> this is a *very* rough measure, but it still tends to indicate to me that
> the maintenance burden isn't terribly high.
That's a pretty neat one-liner. However... in my view, the real cost
of rules is that they are hard to support as we add new features to
SQL. I believe we already decided to punt on making them work with
CTEs... and maybe one other case? I don't really remember the details
any more, but presumably this will come up again with MERGE, and
perhaps other cases...
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
