to_a

# File activerecord/lib/active_record/relation.rb, line 148
    def to_a
      # We monitor here the entire execution rather than individual SELECTs
      # because from the point of view of the user fetching the records of a
      # relation is a single unit of work. You want to know if this call takes
      # too long, not if the individual queries take too long.
      #
      # It could be the case that none of the queries involved surpass the
      # threshold, and at the same time the sum of them all does. The user
      # should get a query plan logged in that case.
      logging_query_plan do
        exec_queries
      end
    end