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15 rows affected
| uid | id | value | grp |
|---|---|---|---|
| 1 | 1 | 0 | 1 |
| 2 | 1 | 0 | 1 |
| 3 | 1 | 1 | 2 |
| 4 | 1 | 1 | 2 |
| 5 | 1 | 1 | 2 |
| 6 | 1 | 0 | 3 |
| 7 | 1 | 1 | 4 |
| 8 | 1 | 0 | 5 |
| 9 | 1 | 0 | 5 |
| 10 | 1 | 0 | 5 |
| 11 | 2 | 1 | 1 |
| 12 | 2 | 1 | 1 |
| 13 | 2 | 0 | 2 |
| 14 | 2 | 0 | 2 |
| 15 | 2 | 1 | 3 |