Re: Don't use the deprecated and insecure PQcancel in our frontend tools anymore

Heikki Linnakangas <hlinnaka@iki.fi>

From: Heikki Linnakangas <hlinnaka@iki.fi>

To: Jelte Fennema-Nio <postgres@jeltef.nl>

Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Alvaro Herrera <alvherre@alvh.no-ip.org>, Jacob Champion <jacob.champion@enterprisedb.com>

Date: 2026-07-04T22:57:53Z

Lists: pgsql-hackers

Attachments

0001-Add-comment-to-describe-the-various-frontend-cancel-.patch (text/x-patch) patch 0001

On 04/07/2026 01:28, Jelte Fennema-Nio wrote:
>> The comments you added in your patches help a lot, explaining the three
>> different ways that cancellation can be handled, thanks for that.
> 
> Yeah, I think

I extracted just the comment in fe_utils/cancel.c to a separate patch, 
and modified it to reflect the reality before the rest of the changes. 
I'm inclined to commit that now to document the status quo. That'll also 
make it easier to see what the other patches change. Does the attached 
look correct to you?

- Heikki