SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias js1) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal Array_[\'left\'] (alias ar)
           Literal UInt64_42 (alias left_number)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias js2) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Literal Array_[\'right\'] (alias ar)
           Literal UInt64_42 (alias right_number)
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier ar
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier left_number
