SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Identifier n_name
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier customer
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier nation
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier c_nationkey
        Identifier n_nationkey
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier ALL
