Mryange opened a new pull request, #20863:
URL: https://github.com/apache/doris/pull/20863
## Proposed changes
before
```
mysql> select hours_add('2023-03-30 22:23:45.23452',8);
+-------------------------------------+
| hours_add('2023-03-30 22:23:45', 8) |
+-------------------------------------+
| 2023-03-31 06:23:45 |
+-------------------------------------+
1 row in set (0.00 sec)
mysql> select date_add('2023-03-30 22:23:45.23452',8);
+------------------------------------+
| date_add('2023-03-30 22:23:45', 8) |
+------------------------------------+
| 2023-04-07 22:23:45 |
+------------------------------------+
1 row in set (0.00 sec)
```
<img width="928" alt="image"
src="https://github.com/apache/doris/assets/59914473/d9088658-fadf-4894-9398-b47e2b050f92";>
after
```
mysql [test]>select hours_add('2023-03-30 22:23:45.23452',8);
+-------------------------------------------+
| hours_add('2023-03-30 22:23:45.23452', 8) |
+-------------------------------------------+
| 2023-03-31 06:23:45.23452 |
+-------------------------------------------+
1 row in set (0.01 sec)
mysql [test]>select date_add('2023-03-30 22:23:45.23452',8);
+------------------------------------------+
| date_add('2023-03-30 22:23:45.23452', 8) |
+------------------------------------------+
| 2023-04-07 22:23:45.23452 |
+------------------------------------------+
1 row in set (0.00 sec)
mysql [test]>set enable_nereids_planner=true;
Query OK, 0 rows affected (0.00 sec)
mysql [test]>set enable_fallback_to_original_planner=false;
Query OK, 0 rows affected (0.00 sec)
mysql [test]>select hours_add('2023-03-30 22:23:45.23452',8);
+-------------------------------------------+
| hours_add('2023-03-30 22:23:45.23452', 8) |
+-------------------------------------------+
| 2023-03-31 06:23:45.23452 |
+-------------------------------------------+
1 row in set (0.03 sec)
mysql [test]>select date_add('2023-03-30 22:23:45.23452',8);
+------------------------------------------+
| days_add('2023-03-30 22:23:45.23452', 8) |
+------------------------------------------+
| 2023-04-07 22:23:45.23452 |
+------------------------------------------+
1 row in set (0.00 sec)
```
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