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* PGDG PostgreSQL Debian package: Question on conditions for creation of new cluster
@ 2025-02-19 08:45 Schmid Andreas <[email protected]>
2025-02-19 09:50 ` Re: PGDG PostgreSQL Debian package: Question on conditions for creation of new cluster Laurenz Albe <[email protected]>
0 siblings, 1 reply; 2+ messages in thread
From: Schmid Andreas @ 2025-02-19 08:45 UTC (permalink / raw)
To: [email protected] <[email protected]>
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-clus.... 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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* Re: PGDG PostgreSQL Debian package: Question on conditions for creation of new cluster
2025-02-19 08:45 PGDG PostgreSQL Debian package: Question on conditions for creation of new cluster Schmid Andreas <[email protected]>
@ 2025-02-19 09:50 ` Laurenz Albe <[email protected]>
0 siblings, 0 replies; 2+ messages in thread
From: Laurenz Albe @ 2025-02-19 09:50 UTC (permalink / raw)
To: Schmid Andreas <[email protected]>; [email protected] <[email protected]>
On Wed, 2025-02-19 at 08:45 +0000, Schmid Andreas wrote:
> 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-clus...
> 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.
I just tried on an Ubuntu system (I think that the packages are pretty
much the same), and installing 17.3 created a cluster.
I think the Stackoverflow question was about installing 17.3 if v17
is already installed. In that case, no new cluster is created.
Yours,
Laurenz Albe
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