finishing sth using Childhandles

[Henri Asseily]

Is the below the correct usage for finishing still active child  
handles of a dbh?

foreach my $childh (@{$dbh->{ChildHandles}}) {
    $childh->finish() if ($childh->{Type} eq 'st');
}


I'm getting an error when running the above code:

dbih_setup_fbav: invalid number of fields: -1, NUM_OF_FIELDS  
attribute  probably not set right

Thanks

H