Re: BUG #19040: Memory leak in hashed subplan node due to missing hashtempcxt reset

From: feichanghong <feichanghong(at)qq(dot)com>
To: "李海洋(陌痕)" <mohen(dot)lhy(at)alibaba-inc(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, ocean_li_996 <ocean_li_996(at)163(dot)com>, "pgsql-bugs(at)lists(dot)postgresql(dot)org" <pgsql-bugs(at)lists(dot)postgresql(dot)org>
Subject: Re: BUG #19040: Memory leak in hashed subplan node due to missing hashtempcxt reset
Date: 2025-09-10 02:32:00
Message-ID: tencent_9A08D94AF1EF4019609DEA1FA326F61C0908@qq.com
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> On Sep 10, 2025, at 09:55, 李海洋(陌痕) <mohen(dot)lhy(at)alibaba-inc(dot)com> wrote:
>
> On 2025-09-09 22:24:22 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> > Digging in the archives, I found the discussion leading to 133924e1 at
> > https://www.postgresql.org/message-id/flat/i2jnbo%241lcj%241%40news.hub.org
>
>
> Having understood the background of this issue, and given that v04-0002 only applies to master,
> v04-0002 LGTM, again.
>
> Thanks for your analysis.

Thanks for the analysis! v04-0002 looks fine to me — please just apply it on
HEAD.

Best Regards,
Fei Changhong

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