backend-sql, network hacks

[linas@linas.org]

It's been rumoured that David Merrill said:
> 
> I was referring to the auditing and checkpointing functionality. It
> *could* be implemented in the engine, but my assumption was that it
> would be implemented directly in the database for maximum robustness
> and speed.

Could you give a breif example of how to do this, in e.g. postgres?
(I am certain oracle has more/fancier directives; practically
speaking, howefvr, it'll be postgres).

--linas