Re: How to run a task continuously in the background

On Fri, Jul 12, 2019 at 7:06 AM Dirk Mika <Dirk.Mika@mikatiming.de> wrote:
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> A cron job will only run once a minute, not wake up every second.
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> I would like to avoid external programs if possible. In the current Oracle environment, there are potentially
multipleschemas on a server in which processing can be active. And processing can be started, monitored and stopped
froma client application. And only for the schema with which the application is connected. 
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Creating a background worker that invokes a stored procedure once per
second? <https://www.postgresql.org/docs/11/bgworker.html>
But this is not so simple to put in place.

Otherwise pg_cron with a function that performs a pg_sleep of one
second in a loop.

Anyway, it seems to me you are better refactoring your solution: it
seems you need to process data when _new data_ comes, not once per
second, so it sounds to me like a trigger could solve the problem.

Luca