[backport 2.3.x] BUG(string dtype): Empty sum produces incorrect result (#60936) #23815
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| 21m 28s | |
| 1h 4m 58s | |
| 1h 12m 26s | |
| 48m 2s | |
| 1h 6m 10s | |
| 44m 40s | |
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| 25m 48s | |
| 1h 30m 18s | |
| 17m 32s | |
| 27m 10s | |
| 24m 3s | |
| 25m 39s | |
| 1h 17m 0s | |
| 1h 18m 7s | |
| 1h 30m 30s | |
| 1h 30m 31s | |
| 1h 18m 27s | |
| 1h 20m 52s | |
| 1h 30m 33s | |
| 1h 11m 0s | |
| 8m 49s | |
| 23m 3s | |
| 59m 9s | |
| 1h 18m 34s | |
| 1h 16m 44s | |
| 1h 21m 31s | |
| 1h 18m 43s | |
| 1h 30m 33s | |
| 1h 26m 57s | |
| 7m 13s | |
| 29m 21s | |
| 1d 10h 6m 18s |