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Re: Help with terminology to describe what my software does please?

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On 05/28/2017 07:53 AM, Melvin Davidson wrote:






Cluster comparison would only occur if you have two or more clusters on the same server, although it's possible to compare across servers,

Explain, because as I understand it a server = one cluster:

https://www.postgresql.org/docs/9.6/static/app-pg-ctl.html

"The init or initdb mode creates a new PostgreSQL database cluster. A database cluster is a collection of databases that are managed by a single server instance. This mode invokes the initdb command. See initdb for details."

but that would involve a lot more work. AFAIK, the only differences for a cluster would be:
1. PostgreSQL version
2. path to database
3. database users (note: it is also possible to make users database specific)
4. list of defined databases

And anything different below the above, I am thinking checking a dev cluster against a production cluster.



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Adrian Klaver
adrian.klaver@xxxxxxxxxxx


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