Re: Pre-PG18 parallel scan estimation: accessing planned worker count from amestimateparallelscan()

From: Peter Geoghegan <pg(at)bowt(dot)ie>
To: Sivaprasad <sivaprasad(dot)off(at)gmail(dot)com>
Cc: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: Pre-PG18 parallel scan estimation: accessing planned worker count from amestimateparallelscan()
Date: 2026-06-25 05:42:47
Message-ID: CAH2-Wzk5yA1Fb=+7ZT-NR3NPXciu2eJb0H7E1J3mU4e2x3oCCA@mail.gmail.com
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On Wed, Jun 24, 2026 at 9:46 PM Sivaprasad <sivaprasad(dot)off(at)gmail(dot)com> wrote:
> My question: prior to PG18, was there any supported mechanism by which an index AM could determine the planner's intended parallel worker count during scan estimation?

No.

--
Peter Geoghegan

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