Hi!
On Wed, Dec 26, 2018 at 4:38 AM Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
> Sounds like you could do this by fixing concurrent refresh to also work
> when the MV is WITH NO DATA.
Yes, I do not think this would be too hard to fix. I could do this nevertheless.
> > Ah, yes. I could just do TRUNCATE and INSERT, instead of heap swap.
> > That would then generate reasonable trigger calls.
>
> Right.
I have tested this yesterday and performance is 2x worse that heap
swap on the benchmark I made. So I do not think this is a viable
approach.
I am now looking into simply triggering TRUNCATE and INSERT triggers
after heap swap simulating the above. I made AFTER STATEMENT triggers
and it looks like it is working, only NEW table is not populated for
some reason. Any suggestions? See attached patch.
Mitar
--
http://mitar.tnode.com/
https://twitter.com/mitar_m
