Update 2: Nevermind. After deleting a bunch of modules from /usr/lib/perl5/site_perl and reinstalling them, it now works. <sigh>

This has me a bit baffled... I suppose the best way to explain it is an example. Here is my "database", in a file called "MyTable":

COLA,COLB,VALUE
foo,bar,1
baz,bar,2
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And the code:

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

my $dbh = DBI->connect(qq{DBI:CSV:f_dir=.;csv_eol=\n}, undef, undef, {
+RaiseError => 1});
my $sth = $dbh->prepare('SELECT VALUE FROM MyTable WHERE COLA = ? AND 
+COLB = ?');
$sth->execute('baz', 'bar');
my @r = $sth->fetchrow_array();
print Dumper \@r;
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If I run this, I get:

$ perl ./csvtest.pl
$VAR1 = [];
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And yet if I change 'baz' to 'foo', I get:

$ perl ./csvtest.pl
$VAR1 = [
  '1'
];
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In the example, I'm expecting to get a '2', but that's not what I'm getting.

Any clues?

DBD::CSV, Text::CSV_XS, SQL::Statement all seem to be at the latest available...

(Apparently, I use CSV files for databases too much :->)

Update:

$ perl -MDBI -e 'DBI->installed_versions'
  Perl            : 5.008008    (i686-linux-thread-multi)
  OS              : linux       (2.6.16-gentoo-r12)
  DBI             : 1.58
  DBD::mysql      : 4.005
  DBD::Sponge     : 12.008696
  DBD::SQLite     : 1.13
  DBD::Proxy      : 0.2004
  DBD::Multiplex  : 1.98
  DBD::Gofer      : 0.009560
  DBD::File       : 0.35
  DBD::ExampleP   : 12.009532
  DBD::DBM        : 0.03
  DBD::CSV        : 0.22
$ perl -MSQL::Statement -le 'print $SQL::Statement::VERSION'
1.15
$ perl -MText::CSV_XS -le 'print $Text::CSV_XS::VERSION'
0.32
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(Not sure what other levels may be pertinent...)