On Thu, Mar 21, 2019 at 03:41:08PM -0400, Robert Haas wrote:
> Yeah. The fact that a concurrent refresh currently does DELETE+INSERT
> rather than UPDATE is currently an implementation detail. If you
> allow users to hook up triggers to the inserts, then suddenly it's no
> longer an implementation detail: it is a user-visible behavior that
> can't be changed in the future without breaking backward
> compatibility.
We are visibly going nowhere for this thread for v12, so I have marked
the proposal as returned with feedback.
--
Michael