I'm trying to implement a forking process with DBI and cannot get the database handle attribute InactiveDestroy to work. As you can see below, after I have reaped the child process with waitpid my database handle is not longer valid. Im currently using DBI 1.39 and the docs on it say that this was fixed. See DBI 1.39. I've even tried installing versions all the way up to the current 1.53 and I get the same problems. What am I doing wrong? Is it possible to do this without having to reconnect?

use strict;
use warnings;
use DBI;
use DBU;

print "$$ started\n";

my $dbh = DBI->connect('DBI:Oracle:dev', 'xxx', 'yyy', {PrintError => 
+1});

my $depts_sql = <<EOT;
select d.id deptid
from codes c, dept d
where c.id = ? and nvl(d.cdt,sysdate+1) > sysdate and c.cd = d.id
EOT
my $depts_csr = $dbh->prepare($depts_sql);

deptid($depts_csr);

my $pid = fork;
print "$$ pid = $pid\n";
if (!defined $pid) {
   print "$$ fork error\n";
}
elsif ($pid == 0) {
   print "$$ child\n";
   $dbh->{InactiveDestroy} = 1;
   # do something here in the child process
   exit;
}

deptid($depts_csr); # this call will succeed because the child has not
+ been reaped yet

waitpid $pid, 0;

deptid($depts_csr); # this call will fail

$dbh->disconnect;

sub deptid {
   my ($csr) = @_;
   $csr->execute('WVPLPRT');
   print "depts=";
   while (my ($deptid) = $csr->fetchrow_array) {
      print "$deptid,";
   }
   print "\n";
}
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Here is the output

# perl problem
21754 started
depts=1,10,11,13,14,15,17,18,19,2,20,21,23,27,3,30,5,9,
21754 pid = 21757
21757 pid = 0
21757 child
depts=1,10,11,13,14,15,17,18,19,2,20,21,23,27,3,30,5,9,
DBD::Oracle::st execute failed: ORA-01001: invalid cursor (DBD: oexfet
+ error) at problem line 42.
DBD::Oracle::st fetchrow_array failed: no statement executing (perhaps
+ you need to call execute first) at problem line 44.
depts=
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