SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function file (children 1)
       ExpressionList (children 3)
        Function concat (children 1)
         ExpressionList (children 2)
          Function currentDatabase (children 1)
           ExpressionList
          Literal \'_data_02323.tsv\'
        Identifier auto
        Literal \'x UInt32 NOT NULL\'
