SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 5)
    Identifier loanx_id
    Identifier rating_sp
    Identifier cdu_date
    Function row_number (alias row_number) (children 1)
     ExpressionList
    Function last_value (alias last_cdu_date) (children 1)
     ExpressionList (children 1)
      Identifier cdu_date
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier atable
   ExpressionList (children 3)
    Identifier cdu_date
    Identifier loanx_id
    Identifier rating_sp
   Set
