SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Identifier s
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Function toFixedString (alias s) (children 1)
            ExpressionList (children 2)
             Function materialize (children 1)
              ExpressionList (children 1)
               Literal \'abc\'
             Literal UInt64_3
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_100
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier s
