On 1 December 2017 at 23:04, Chapman Flack wrote:
> On 11/29/2017 05:48 PM, Chapman Flack wrote:
> > I'm thinking of writing a background worker that will enumerate
> > the databases present, and spin off, for each one, another BGW
> > that will establish a connection and do stuff.
>
> Can I even do this?
>
> "Unlike RegisterBackgroundWorker, which can only be called
> from within the postmaster, RegisterDynamicBackgroundWorker
> must be called from a regular backend."
>
> Can I call RegisterDynamicBackgroundWorker when not in the postmaster,
> but also not in a "regular backend", but rather another BGW?
>
Yes. BDR does it a lot.
--
Craig Ringer http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
