On Mon, Apr 22, 2019 at 12:15:32PM -0400, Robert Haas wrote: > On Mon, Apr 22, 2019 at 11:48 AM Bruce Momjian <br...@momjian.us> wrote: > > My point is that you would normally only remove the modblock file when 4 > > is removed because this modblock files is useful for incremental backups > > from base backups that happened between 1 and 4. > > That's an interesting point. On the other hand, I think it would be > typical to want the master to retain .modblock files for much longer > than it retains WAL segments, and in my design, the WAL archive > wouldn't see those files at all; they'd be stored on the master. I > was actually thinking that they should possibly be stored in a > separate directory to avoid confusion.
I assumed the modblock files would be stored in the WAL archive so some external tools could generate incremental backups using just the WAL files. I assumed they would also be sent to standby servers so incremental backups could be done on standby servers too. -- Bruce Momjian <br...@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +