Re: pgsql: psql: Add test for query canceling

> On 24 Aug 2021, at 15:40, Peter Eisentraut <peter.eisentraut@enterprisedb.com> wrote:
>
> On 23.08.21 13:12, Daniel Gustafsson wrote:
>>> On 21 Aug 2021, at 00:40, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>>
>>> Daniel Gustafsson <daniel@yesql.se> writes:
>>>> On 20 Aug 2021, at 20:47, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>>>> I think you should drop the overly-cute bit with a SIGALRM handler,
>>>>> and instead have a loop-with-delay around an attempt to read the
>>>>> psql.pid file, after launching the psql run without an immediate
>>>>> wait for termination.
>>>
>>>> This could perhaps be done with a PostgresNode::interactive_psql
>>>> session?
>>>
>>> Yeah, we do have that infrastructure available in the
>>> 010_tab_completion.pl test.
>> In order to satisfy my own curiosity I decided to take a stab at this which
>> turned into the attached.  I wasn’t able to reliably know that the pg_sleep
>> query had started except letting the timer expire, but that may very well be
>> the rust on my Perl skills showing.
>
> Thanks for looking into this.  With your patch applied, tests 2, 3, and 4 fail.  Do they pass for you?

Thats odd, all tests pass for me.  Did the logs give an indication as to what
was failing?

--
Daniel Gustafsson        https://vmware.com/