SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 5)
    Identifier id
    Identifier data
    Identifier _size
    Identifier _file
    Identifier _path
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Function s3 (children 1)
       ExpressionList (children 2)
        Identifier s3_conn
        Function equals (children 1)
         ExpressionList (children 2)
          Identifier filename
          Literal \'03036_archive2.zip :: nonexistent.csv\'
