https://bugzilla.wikimedia.org/show_bug.cgi?id=66684

            Bug ID: 66684
           Summary: Figure out how to test for database backwards
                    incompatibilities
           Product: Wikimedia
           Version: wmf-deployment
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: Unprioritized
         Component: Continuous integration
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected],
                    [email protected], [email protected]
       Web browser: ---
   Mobile Platform: ---

Sometimes database changes are made to core (not likely) or deployed extensions
(much more likely) that are not backwards compatible. It's things like new
tables or schema changes.

In production, these are handled manually. In the Beta Cluster, we run
update.php on a regular basis. As such, finding errors (and not having them
magically disappear) is hard.

I'm not (necessarily?) proposing to stop running update.php regularly.

I am trying to figure out a way to catch these types of mistakes before we have
outages in production.

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