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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2022/05/16 06:12:25 UTC
[GitHub] [incubator-doris] hf200012 opened a new issue, #9587: [Bug] unix_timestamp timestamp function exception
hf200012 opened a new issue, #9587:
URL: https://github.com/apache/incubator-doris/issues/9587
### Search before asking
- [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues.
### Version
1.0
### What's Wrong?
```
mysql> select unix_timestamp('2038-11-30 10:30:19');
+---------------------------------------+
| unix_timestamp('2038-11-30 10:30:19') |
+---------------------------------------+
| 0 |
+---------------------------------------+
```
The time is wrong after about 2038-01-19
```
mysql> select unix_timestamp('2038-01-20 00:00:00');
+---------------------------------------+
| unix_timestamp('2038-01-20 00:00:00') |
+---------------------------------------+
| 0 |
+---------------------------------------+
1 row in set (0.01 sec)
mysql> select unix_timestamp('2038-01-18 00:00:00');
+---------------------------------------+
| unix_timestamp('2038-01-18 00:00:00') |
+---------------------------------------+
| 2147385600 |
+---------------------------------------+
1 row in set (0.00 sec)
mysql> select unix_timestamp('2038-01-19 00:00:00');
+---------------------------------------+
| unix_timestamp('2038-01-19 00:00:00') |
+---------------------------------------+
| 2147472000 |
+---------------------------------------+
1 row in set (0.01 sec)
mysql> select unix_timestamp('2038-01-21 00:00:00');
+---------------------------------------+
| unix_timestamp('2038-01-21 00:00:00') |
+---------------------------------------+
| 0 |
+---------------------------------------+
1 row in set (0.00 sec)
```
### What You Expected?
expectations are correct
### How to Reproduce?
_No response_
### Anything Else?
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
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[GitHub] [incubator-doris] cambyzju commented on issue #9587: [Bug] unix_timestamp/from_unixtime timestamp function exception
Posted by GitBox <gi...@apache.org>.
cambyzju commented on issue #9587:
URL: https://github.com/apache/incubator-doris/issues/9587#issuecomment-1127613907
For Mysql:
https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_unix-timestamp
Prior to MySQL 8.0.28, the valid range of argument values is the same as for the [TIMESTAMP](https://dev.mysql.com/doc/refman/8.0/en/datetime.html) data type: '1970-01-01 00:00:01.000000' UTC to '2038-01-19 03:14:07.999999' UTC. This is also the case in MySQL 8.0.28 and later for 32-bit platforms. For MySQL 8.0.28 and later running on 64-bit platforms, the valid range of argument values for UNIX_TIMESTAMP() is '1970-01-01 00:00:01.000000' UTC to '3001-01-19 03:14:07.999999' UTC (corresponding to 32536771199.999999 seconds).
Now Doris `unix_timestamp` and `from_unixtime` both are 32-bit, they will overflow in around '2038-01-20'.
So we need to update them to 64-bit, if nobody is working on this issue, you could assign it to me.
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