New defaults for concat, merge, combine_*
#16425
| Job | Run time |
|---|---|
| 5s | |
| 3s | |
| 9m 26s | |
| 9m 58s | |
| 5m 56s | |
| 8m 30s | |
| 15m 52s | |
| 16m 17s | |
| 1m 58s | |
| 8m 31s | |
| 8m 3s | |
| 7m 11s | |
| 2m 30s | |
| 13m 22s | |
| 14m 40s | |
| 2h 2m 22s |