SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function tuple (alias a) (children 1)
            ExpressionList (children 1)
             Literal UInt64_1
         SelectQuery (children 1)
          ExpressionList (children 1)
           Function tuple (alias a) (children 1)
            ExpressionList (children 1)
             Literal UInt64_2
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier a
