skip 99mysql.t on some versions of DBD::mysql

Author: chorny

t/99mysql.t

@@ -10,6 +10,10 @@ plan skip_all => "Optional modules (Test::Database, DBD::mysql, DBI) not install
                require DBI;
               };
 
+my $dbd_mysq_ver = DBD::mysql->VERSION();
+plan skip_all => "Version $dbd_mysq_ver of DBD::mysql has serious problems"
+  if $dbd_mysq_ver >= '4.021' && $dbd_mysq_ver <= '4.023';
+
 if ($ENV{TRAVIS}) {
     my $cfg = << 'EOT';
     driver_dsn  = dbi:mysql: