AlterQuery  02581_trips (children 3)
 ExpressionList (children 1)
  AlterCommand UPDATE (children 2)
   Function in (children 1)
    ExpressionList (children 2)
     Identifier id
     Identifier 02581_set
   ExpressionList (children 1)
    Assignment description (children 1)
     Literal \'d\'
 Identifier 02581_trips
 Set
