replication slot to be used in the future

[Tom DalPozzo <t.dalpozzo@xxxxxxxxx>]

Hi,

I've got my primary and I make a pg_basebackup -x in order to create a standby.

I can connect my standby only later, in some hours, so I'd like the master to keep new WALs but I don't like to use archiving nor keep-segments option. I thought to do it through a physical replication slot (my standby will have its replication slot name).

So I create a physical replication slot but I see that the master, which has never seen my standby connected to him, doesn't keep WALs.

Any idea?

Regards

Pupillo