online_time table skips indices

[seyfahni]

The primary key column id skips indices and thus causes the table to fill up much more rapidly than it should. This is probably caused by using INSERT ... ON DUPLICATE KEY ....

Example:

SELECT `id` FROM `online_time` ORDER BY `id` DESC LIMIT 10;

+--------+
| id     |
+--------+
| 348377 |
| 348343 |
| 347860 |
| 346451 |
| 346370 |
| 345845 |
| 345334 |
| 345199 |
| 343938 |
| 343934 |
+--------+