This is a queue but if I am not mistaken, it is outside PostgreSQL
where to go I am very reluctant. I will look at it in more depth.
Thanks!
Quoting Ron <ronljohnsonjr(at)gmail(dot)com>:
> Maybe https://github.com/chanks/que is what you need.
>
> On 09/05/2018 02:35 PM, Thiemo Kellner wrote:
>> I have seen pg_cron but it is not what I am looking for. It
>> schedules tasks only by time. I am looking for a fifo queue.
>> pg_cron neither prevents from simultaneous runs I believe.