Re: Server crash when describing a FETCH statement after its cursor is closed

From: Dirkjan Bussink <d(dot)bussink(at)gmail(dot)com>
To: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Server crash when describing a FETCH statement after its cursor is closed
Date: 2026-09-26 07:23:42
Message-ID: 7E0B8F9A-063B-4CBE-91C2-D986EDD8B45B@gmail.com
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Hi,

> On 25 Sep 2026, at 16:33, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> I'm not convinced by this blithe assertion "not our business to raise
> error". The adjacent case for ExecuteStmt *will* raise an error if
> it can't find the prepared statement; why shouldn't this case act like
> that one? IOW, the sequence of client operations that you show is
> invalid, and I think we ought to push back on that accordingly.

Alright, here is a patch that now explicit returns an error when the portal
is already closed, matching what ExecuteStmt does.

--
Cheers,

Dirkjan

Attachment Content-Type Size
v2-0001-Fix-crash-when-describing-a-FETCH-statement-wh.patch application/octet-stream 4.1 KB

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