DBI/DBD::Ingres and unicode data types

DBI version 1.5
DBD::Ingres version 0.51
Using Ingres r3 on linux I have a table that has a column with a
nvarchar data type.

The following code

#!/bin/perl
use DBI;
use Data::Dumper;
use strict;
use warnings;

my $dbh = DBI->connect("DBI:Ingres:mydb","ingres","");

my $sth = $dbh->prepare( qq{select * from mytable});
my @types = $sth->{ing_sqltypes};
print Dumper(@types);

__END__

produces the following error

DBD::Ingres: field 2 has unsupported type 27

Are unicode datatypes not supported?

Thanks

Dennis

d underscore roesler at agilent dot com