On Mon, May 17, 2021 at 7:37 PM David G. Johnston <david.g.johnston@xxxxxxxxx> wrote: > > On Monday, May 17, 2021, Tom Lane <tgl@xxxxxxxxxxxxx> wrote: >> >> "David G. Johnston" <david.g.johnston@xxxxxxxxx> writes: >> > On Sunday, May 16, 2021, Loles <lolesft@xxxxxxxxx> wrote: >> >> I don't understand why the server starts that process if I'm not using >> >> replication of any kind. >> >> > It starts the process because at any time someone can execute a “create >> > subscription” command. If no one does so the amount of time spent >> > confirming the subscriptions table is empty is trivial. >> >> It looks like it won't be started if you set >> max_logical_replication_workers = 0. >> > > I was wondering about that. Would you mind posting a link to the code where that is checked? I actually looked though admittedly not that hard. > /* * ApplyLauncherRegister * Register a background worker running the logical replication launcher. */ void ApplyLauncherRegister(void) { BackgroundWorker bgw; if (max_logical_replication_workers == 0) return; -- Regards, Dilip Kumar EnterpriseDB: http://www.enterprisedb.com