Expand and explain please.
Regards,
David
On Thursday, 28 April 2022, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> wrote:
> On 2022-Apr-28, Shaozhong SHI wrote:
>
> > Why sleep(1)?
>
> It is sleeping to show that they are running concurrently. If it runs
> five sleeps of one second each and the whole command lasts one second,
> then all sleeps ran in parallel. Had the whole command taken five
> seconds, you would know that the queries ran serially.
>
> > It should be all active - doing work concurrently.
>
> They are all active simultaneously. You just need to supply your own
> query, without any sleeps.
>
> --
> Álvaro Herrera
>