<blockquote>
mysql> select count from csresult where sig = '024b1680d57f61df3b3236f0c9321ce7';
+-------+
| count |
+-------+
|    -1 |
+-------+
1 row in set (0.00 sec)

mysql> show create table csresult\G
*************************** 1. row ***************************
       Table: csresult
Create Table: CREATE TABLE `csresult` (
  `sig` varchar(32) NOT NULL default '',
  `count` int(10) default NULL,
  `results` mediumblob,
  `extrainfo` text,
  PRIMARY KEY  (`sig`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
1 row in set (0.01 sec)

mysql> show indexes from csresult\G
*************************** 1. row ***************************
       Table: csresult
  Non_unique: 0
    Key_name: PRIMARY
Seq_in_index: 1
 Column_name: sig
   Collation: A
 Cardinality: 204
    Sub_part: NULL
      Packed: NULL
        Null:
  Index_type: BTREE
     Comment:
1 row in set (0.00 sec)

mysql> select version();
+------------+
| version()  |
+------------+
| 4.1.16-log |
+------------+
1 row in set (0.00 sec)
</blockquote>