SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function toUInt64 (alias x) (children 1)
     ExpressionList (children 1)
      Function round (children 1)
       ExpressionList (children 1)
        Function exp10 (children 1)
         ExpressionList (children 1)
          Identifier number
    Function toString (alias s) (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_10
 Identifier Pretty
