morningman commented on pull request #7483:
URL: https://github.com/apache/incubator-doris/pull/7483#issuecomment-1000967399
In MySQL, it will also return 0 but with a warnings.
Doris currently don't have warning system, so I think we should simply make
it same as mysql?
```
mysql> select cast("e465s" as decimal);
+--------------------------+
| cast("e465s" as decimal) |
+--------------------------+
| 0 |
+--------------------------+
1 row in set, 1 warning (0.06 sec)
mysql> show warnings;
+---------+------+--------------------------------------------+
| Level | Code | Message |
+---------+------+--------------------------------------------+
| Warning | 1292 | Truncated incorrect DECIMAL value: 'e465s' |
+---------+------+--------------------------------------------+
1 row in set (0.06 sec)
``
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