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 \'/test2/data.Parquet\'
        Literal \'Parquet\'
        Literal \'number UInt64\'
