docs: Add outer_coalesce join strategy in the user guide
#618
| Job | Run time |
|---|---|
| 8m 36s | |
| 7s | |
| 47s | |
| 9m 30s |
outer_coalesce join strategy in the user guide
#618
| Job | Run time |
|---|---|
| 8m 36s | |
| 7s | |
| 47s | |
| 9m 30s |