+----+-------------+---------------+-------+---------------+---------+---------+------+------+-------------+
| id | select_type | table         | type  | possible_keys | key     | key_len | ref  | rows | Extra       |
+----+-------------+---------------+-------+---------------+---------+---------+------+------+-------------+
|  1 | SIMPLE      | keywordmaster | range | PRIMARY       | PRIMARY | 8       | NULL |    3 | Using where |
+----+-------------+---------------+-------+---------------+---------+---------+------+------+-------------+