Re: Questions on Upgrading PostgreSQL from 15.0 to 15.9 and Setting Up Streaming Replication

> On Nov 24, 2024, at 09:03, Subhash Udata <subhashudata@gmail.com> wrote:
> When we shut down the standby, upgrade it, and then start it back up, will the replication automatically resume from
theprimary to the standby? 

Assuming that the standby has access to any WAL generated during the shutdown (either still in the primary's WAL
directory,or via an archive using archive_command), yes.  If you are not using a WAL archive using archive_command, you
willwant to make sure your wal_keep_size parameter is set high enough that required WAL segments aren't recycled during
thestandby's downtime.