On Wed, Nov 28, 2007 at 05:17:38PM -0500, Tom Lane wrote:
> David Fetter <[EMAIL PROTECTED]> writes:
> > On Wed, Nov 28, 2007 at 03:53:04PM -0500, Tom Lane wrote:
> >> Entirely removing the example of how to do it with rules doesn't
> >> seem like a good idea.
> > It does to me.  I haven't found a case yet where rules worked even
> > as well as triggers.
> I don't have a problem with emphasizing triggers as the preferred
> solution, but we should keep the older example, if only because
> people are going to see DB schemas that use that approach, and they
> won't understand what's going on (or realize they could convert) if
> they've not seen an example.

Greg Sabino Mullane managed to contrive an example where RULEs might
conceivably be the least-bad way to do this, that being a machine
where no PLs may be installed.

Telling people how to do this is not *quite* as bad as describing how
to do EAV, but it's pretty close.

David Fetter <[EMAIL PROTECTED]> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: [EMAIL PROTECTED]

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