Details
-
Bug
-
Status: Closed (View Workflow)
-
Minor
-
Resolution: Fixed
-
10.0.4, 5.5.31, 5.3.12
-
None
-
None
Description
The function MAKETIME() in MariaDB does not preserve fractional digits:
MariaDB [test]> SELECT MAKETIME(10,10,10.231); |
+------------------------+ |
| MAKETIME(10,10,10.231) |
|
+------------------------+ |
| 10:10:10 |
|
+------------------------+ |
1 row in set (0.00 sec) |
It works as expected in MySQL-5.6:
MySQL [test]> SELECT MAKETIME(10,10,10.231); |
+------------------------+ |
| MAKETIME(10,10,10.231) |
|
+------------------------+ |
| 10:10:10.231 |
|
+------------------------+ |
1 row in set (0.00 sec) |
A possibly related problem:
MariaDB [test]> SELECT MAKETIME(0, 0, 59.9);
|
+----------------------+
|
| MAKETIME(0, 0, 59.9) |
|
+----------------------+
|
| NULL |
|
+----------------------+
|
The above result is wrong.
It seems 59.9 is rounded to 60, which makes a wrong time '00:00:60', hence NULL.
The expected result is '00:00:59.9'.
More examples:
MariaDB [test]> drop table if exists t1; create table t1 as select time('10:00:00'); show create table t1; |
Query OK, 0 rows affected (0.00 sec) |
Query OK, 1 row affected (0.10 sec)
|
Records: 1 Duplicates: 0 Warnings: 0
|
+-------+------------------------------------------------------------------------------------------------------+ |
| Table | Create Table | |
+-------+------------------------------------------------------------------------------------------------------+ |
| t1 | CREATE TABLE `t1` ( |
`time('10:00:00')` time(6) DEFAULT NULL |
) ENGINE=MyISAM DEFAULT CHARSET=latin1 | |
+-------+------------------------------------------------------------------------------------------------------+ |
1 row in set (0.00 sec) |
The expected column type is time(0).
