Is the Admin role different than a role with all permissions enabled? Is the default Admin role inherently different than other roles? Does Drupal extend privileges to the Admin role that are not configurable/available to other roles?

To be clear, I am not referring to user/1 on the site, but rather the official Administrator role as has been assigned here: admin/config/people/accounts.



Here's why I'm asking:

I've been having trouble with a Data Export View where a non-Admin user runs the export and the resulting output is incomplete. When running the export logged in as an Admin, the resulting output is complete.

I spent some time futzing with the permissions of the non-Admin role with no good results. So, as an experiment, I made a new role and enabled every permission… which, presumable would make this role equivalent to the Admin role. I logged in as a user with that new role, ran the data export, and still got the same incomplete dataset. What gives?



As a bonus question: any idea why is my Data Export view outputting incomplete data for the non-Admin roles?
Yes, the user 1 is different in Drupal:


  The Drupal account created during installation (i.e. with user ID or
  UID=1) behaves differently from others. Primarily, it can bypass all
  access callbacks: it has permission to do everything by default.
  Failing to secure this account could result in potential security
  risks. Treat the UID=1 account as you would with root on Linux
  systems.


Source: https://www.drupal.org/node/947312