zclllyybb opened a new pull request, #37358:
URL: https://github.com/apache/doris/pull/37358
## Proposed changes
Issue Number: close #xxx
before:
```sql
mysql> select CONVERT_TZ(cast('0000-01-01 00:00:00.00001' as DATETIMEV1),
cast('Asia/Shanghai' as VARCHAR(65533)), cast('America/Los_Angeles' as
VARCHAR(65533)));
+---------------------------------------------------------------------------------------------------------------------------------------------------+
| convert_tz(cast('0000-01-01 00:00:00.00001' as DATETIME),
cast('Asia/Shanghai' as VARCHAR(65533)), cast('America/Los_Angeles' as
VARCHAR(65533))) |
+---------------------------------------------------------------------------------------------------------------------------------------------------+
| q535-12-31 08:01:19
|
+---------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.12 sec)
```
now:
```sql
mysql> select CONVERT_TZ(cast('0000-01-01 00:00:00.00001' as DATETIMEV1),
cast('Asia/Shanghai' as VARCHAR(65533)), cast('America/Los_Angeles' as
VARCHAR(65533)));
+---------------------------------------------------------------------------------------------------------------------------------------------------+
| convert_tz(cast('0000-01-01 00:00:00.00001' as DATETIME),
cast('Asia/Shanghai' as VARCHAR(65533)), cast('America/Los_Angeles' as
VARCHAR(65533))) |
+---------------------------------------------------------------------------------------------------------------------------------------------------+
| NULL
|
+---------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.09 sec)
```
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