Re: Fix incorrect start up costs for WindowAgg paths (bug #17862)

From: Tim Palmer <tim3sp(at)gmail(dot)com>
To: David Rowley <dgrowleyml(at)gmail(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Fix incorrect start up costs for WindowAgg paths (bug #17862)
Date: 2023-08-03 18:08:28
Message-ID: CAHg=Pnk_ehR0Zw5AA161ZiSE+zCNST=oj_oc2_12Pn33UZnxNQ@mail.gmail.com
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On Thu, 3 Aug 2023 at 05:50, David Rowley <dgrowleyml(at)gmail(dot)com> wrote:

> I'm currently thinking it's
> a bad idea to backpatch this but I'd consider it more if someone else
> thought it was a good idea or if more people came along complaining
> about poor plan choice in plans containing WindowAggs. Currently, it
> seems better not to destabilise plans in the back branches. (CC'd Tim,
> who reported #17862, as he may have an opinion on this)
>

I agree it's better not to destabilise plans in the back branches.

Tim

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