Re: [HACKERS] Optional message to user when terminating/cancelling backend

> On 24 Aug 2018, at 03:37, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> Thomas Munro <thomas(dot)munro(at)enterprisedb(dot)com> writes:
>> On Fri, Aug 24, 2018 at 6:53 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> I think this is just a timing problem: the signal gets sent,
>>> but it might or might not get received before the current statement ends.
>
>> How about we just wait forever if the function manages to return?
>> select case when pg_cancel_backend(pg_backend_pid(), '...') then
>> pg_sleep('infinity') end;
>
> Hm, that might work. I'd pick a long but not infinite timeout --- maybe
> 60 sec would be good.

I like that idea, so I’ve updated the patch to see what the cfbot thinks of it.

cheers ./daniel