InsertQuery   (children 2)
 Identifier random_filename
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 1)
     Function concat (children 1)
      ExpressionList (children 3)
       Literal \'03716_test_msgpack_empty_tuple_\'
       Function toString (children 1)
        ExpressionList (children 1)
         Function generateUUIDv4 (children 1)
          ExpressionList
       Literal \'.msgpack\'
