mysql> DESCRIBE xvideos;
+------------+-----------+------+-----+---------+-------+
| Field      | Type      | Null | Key | Default | Extra |
+------------+-----------+------+-----+---------+-------+
| url        | char(50)  | NO   |     | NULL    |       |
| performer  | char(30)  | NO   |     | NULL    |       |
| runtime    | char(12)  | YES  |     | NULL    |       |
| thumb      | char(120) | YES  |     | NULL    |       |
| iframeCode | char(200) | YES  |     | NULL    |       |
| tags       | char(200) | YES  | MUL | NULL    |       |
| category   | char(60)  | YES  | MUL | NULL    |       |
+------------+-----------+------+-----+---------+-------+
7 rows in set (0.00 sec)

mysql> SELECT count(performer) FROM xvideos;
+------------------+
| count(performer) |
+------------------+
|          4543335 |
+------------------+
1 row in set (0.00 sec)