pt-table-checksum tables option same as databases option

[mark]

[In:/doc/percona-toolkit/2.2/release_notes.html]
Here is my pt-table-checksum command:

pt-table-checksum -uname -ppasswd -hip_address -P3307 --quiet --no-check-binlog-format --ignore-databases mysql,sysdb,percona --tables test.test --function MD5

After run this command, there is no output in percona.checksums.

Then I check the source code:
   if ( $filter->{'tables'}
        && $filter->{'tables'}->{$tbl}
        && $filter->{'tables'}->{$tbl} ne '*'
        && $filter->{'tables'}->{$tbl} ne $db ) {
      PTDEBUG && _d('Table', $tbl, 'is only allowed in database',
         $filter->{'tables'}->{$tbl});
      return 0;
   }
But i do not understand is that '*' is a string and $filter->{'tables'}->{$tbl} is HASH.

This happened only database is same as table.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PT-1431