Which customer, who has made at least one payment, has spent the least money? List his or her first name, last name, and the id.
return customers ;return #1 who  has  made at least one payment ;return #2 who  has  spent the least money ;return the first name  of #3 ;return the last name  of #3 ;return the id of #3 ;return #4 , #5 ,  #6
['select', 'filter', 'filter', 'project', 'project', 'project', 'union']