SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    WithElement (children 1)
     Subquery (children 1)
      SelectWithUnionQuery (children 1)
       ExpressionList (children 2)
        SelectQuery (children 1)
         ExpressionList (children 2)
          Function toUInt16 (alias n) (children 1)
           ExpressionList (children 1)
            Literal UInt64_1
          Literal \'1\' (alias concat)
        SelectQuery (children 3)
         ExpressionList (children 2)
          Function materialize (children 1)
           ExpressionList (children 1)
            Function toUInt8 (children 1)
             ExpressionList (children 1)
              Function plus (children 1)
               ExpressionList (children 2)
                Identifier n
                Literal UInt64_1
          Function concat (children 1)
           ExpressionList (children 2)
            Identifier concat
            Function toString (children 1)
             ExpressionList (children 1)
              Function plus (children 1)
               ExpressionList (children 2)
                Identifier n
                Literal UInt64_1
         TablesInSelectQuery (children 1)
          TablesInSelectQueryElement (children 1)
           TableExpression (children 1)
            TableIdentifier recursive_cte
         Function less (children 1)
          ExpressionList (children 2)
           Identifier n
           Literal UInt64_10
   ExpressionList (children 2)
    Identifier n
    Identifier concat
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier recursive_cte
