> I've looked at v7, and my main comment is that this is bloated in
> terms of docs and comments.
+1 for v8. I tested serial, parallel and parallel autovacuum. The view
matches the new docs.
> + * they report progress for the index they are processing.
>
> This reads a bit weird as well..
Maybe this:
* Parallel vacuum workers perform only index vacuum or index cleanup,
* so their progress row only shows the phase and the current index.
Thanks,
Shihao
