Hi I'm trying to install the postgresql-17 Debian package from PGDG apt repo alongside an already existing PostgreSQL 16 installation. So there is already a PostgreSQL 16 cluster on my machine (which I want to upgrade to version 17 using the pg_upgrade command later on).
If I'm not wrong, the PostgreSQL packages used to automatically create a new cluster during installation, even if there already was an older cluster present. (Using a different port in this case.) But this doesn't happen with the 17.3 package. Does anyone know if this behavior has changed? Or anyone can explain on which conditions a new cluster is created and when not? There was a now closed discussion on this topic on Stack Overflow: https://stackoverflow.com/questions/79441161/postgres-17-3-installation-no-longer-creates-a-new-cluster. Of course, I will create the additional cluster using pg_createcluster if this is the way to go. The point is that I'm installing PostgreSQL using an Ansible script, and pg_createcluster was not needed until now. So before I update my script, I hope to get some more information about the behavior of the PostgreSQL packages regarding automatic cluster creation. Thanks a lot, Andy
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