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| id | from | to |
|---|---|---|
| 18 | 33000 | 33300 |
| 19 | 33300 | 33600 |
| 20 | 33900 | 34200 |
| 21 | 34200 | 34800 |
| 22 | 36000 | 36300 |
SELECT 5
| id | prev_to | from | to | next_from |
|---|---|---|---|---|
| 18 | null | 33000 | 33300 | 33300 |
| 19 | 33300 | 33300 | 33600 | 33900 |
| 20 | 33600 | 33900 | 34200 | 34200 |
| 21 | 34200 | 34200 | 34800 | 36000 |
| 22 | 34800 | 36000 | 36300 | null |
SELECT 5