figgs

When will people learn that the 'relation' in relational database comes from the correspondence between database tables and the mathematical notion of relations, not the ability to describe relationships between tables? Unless scaling practices make a relational database stop using tables, the database still being used as a relational database.

This is not a bug.

"a = 5 unless defined? a" is not meant to be equivalent to this:

  unless defined? a
     a = 5
  end

  a = unless defined? a
        5
      end*