Redmine

    scope = TimeEntry.visible

                     .joins(:project, :user)

                     .includes(:activity)

                     .references(:activity)

                     .left_join_issue

                     .where(statement)

    if Redmine::Database.mysql? && ActiveRecord::Base.connection.supports_optimizer_hints?

      # Provides MySQL with a hint to use a better join order and avoid slow response times

      scope.optimizer_hints('JOIN_ORDER(time_entries,projects,users)')

    else

      scope

    end