Testing if Process.fork requires 4.2 ActiveRecord disconnect/reconnect before after fork

fork.rb

puts "Parent: #{Process.pid} #{ActiveRecord::Base.connection_pool.connections.collect(&:spid)}"
SchemaMigration.count

# Place I thought we'd need to disconnect
# ActiveRecord::Base.clear_all_connections!
puts "Parent: #{Process.pid} #{ActiveRecord::Base.connection_pool.connections.collect(&:spid)}"

10.times do
  pid = fork do
    puts "Child: #{Process.pid} #{ActiveRecord::Base.connection_pool.connections.collect(&:spid)}"

    # Place I thought children may need to reconnect
    # ActiveRecord::Base.establish_connection
    SchemaMigration.count
    puts "Child: #{Process.pid} #{ActiveRecord::Base.connection_pool.connections.collect(&:spid)}"
    sleep 2
    exit!
  end
  Process.detach(pid)
end

sleep 5

puts "Parent: #{Process.pid} #{ActiveRecord::Base.connection_pool.connections.collect(&:spid)}"
SchemaMigration.count
puts "Parent: #{Process.pid} #{ActiveRecord::Base.connection_pool.connections.collect(&:spid)}"