groupby: remove some internal use of IndexVariable #12995
| Job | Run time |
|---|---|
| 11s | |
| 8s | |
| 7m 39s | |
| 9m 24s | |
| 5m 6s | |
| 5m 47s | |
| 14m 8s | |
| 15m 5s | |
| 1m 29s | |
| 6m 21s | |
| 6m 21s | |
| 1m 25s | |
| 1h 13m 4s |
| Job | Run time |
|---|---|
| 11s | |
| 8s | |
| 7m 39s | |
| 9m 24s | |
| 5m 6s | |
| 5m 47s | |
| 14m 8s | |
| 15m 5s | |
| 1m 29s | |
| 6m 21s | |
| 6m 21s | |
| 1m 25s | |
| 1h 13m 4s |