On Thu, Mar 26, 2020 at 10:11 AM Justin Pryzby <pry...@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

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