Avoid a clone when creating UnionArray from ArrayData
#15529
| Job | Run time |
|---|---|
| 2h 27m 49s | |
| 2h 27m 49s |
UnionArray from ArrayData
#15529
| Job | Run time |
|---|---|
| 2h 27m 49s | |
| 2h 27m 49s |