May 2018
Intermediate to advanced
576 pages
30h 25m
English
Even though the Debian/Ubuntu and Red Hat file layouts are different, they both follow the Linux Filesystem Hierarchy Standard (FHS), so neither layout is wrong.
The Red Hat layout is simpler and easier to understand. The Debian/Ubuntu layout is more complex, but it has different and more adventurous goals. The Debian/Ubuntu layout is similar to the Optimal Flexible Architecture (OFA) of other database systems. As pointed out earlier, the goals are to provide a file layout that will allow you to have multiple PostgreSQL database servers on one system, and to allow many versions of the software to exist in the filesystem at once.
Again, the layout for the Windows and OS X installers is different. Multiple database clusters ...