I successfully installed from source with a different user other than postgres on Ubuntu.
However now I am curious we can do any modification like this when I install PostgreSQL via the tool, like apt-get or yum.
As you mentioned, these tools creates postgres user automatically.
If we use a tool like this, we need to create another superuser as post-installation procedure to switch user, and stop usage of postgres default user..
Just curious.. how people is doing this type of scenario...
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