Given a table like this:
... [-->]mysql> select * from delta;
+------------+-------+
| end_time | level |
+------------+-------+
| 1245937320 | 5 |
| 1245937565 | 1 |
| 1245954231 | 5 |
| 1245954844 | 2 |
| 1245956014 | 4 |
| 1245963214 | 5 |
I've seen people drawing ascii-charts with sql-statements, but this is new.
