$tables = {
        rows => [0, 1, 10, 100],
        partitions => [ 'KEY (pk) PARTITIONS 2' ],
        engines => [ 'InnoDB' ],
	pk => [ 'int auto_increment' ]
};

$fields = {
        types => [ 'int' ],
        indexes => [ undef ],
        null => [undef],
};

$data = {
        numbers => [ 'digit', 'null', undef ],
}