Why does Rails 3 with Mysql2 Gem ActiveRecord::Base.connection.execute(sql) return Array not Hash?

Question

I\'m in the process of upgrading an application to Rails 3. I\'ve decided to go with the mysql2 gem. There\'s some legacy code in the app that makes calls like:

Answer 1

results = ActiveRecord::Base.connection.select(sql) 

table header

results.first.keys.each do |key|
 key
end

table data

results.each do |result| %>
  result.values.each do |value| %>
    value
  end
end