On Thu, Mar 26, 2020 at 10:11 AM Justin Pryzby <pryzby@telsasoft.com> wrote:
>
> Seems fine. Rather than saying "different phases" I, would say:
> "The index vacuum and heap vacuum phases may be called multiple times in the
> middle of the heap scan phase."
>
Okay, I have slightly adjusted the wording as per your suggestion.
> But actually I think the concern is not that we unnecessarily "Revert back to
> the old phase" but that we do it in a *loop*. Which I agree doesn't make
> sense, to go back and forth between "scanning heap" and "truncating".
>
Fair point. I have moved the change to the truncate phase at the
caller of lazy_heap_truncate() which should address this concern.
Sawada-San, does this address your concern?
--
With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com