maria-developers team mailing list archive

[Peter Laursen <peter_laursen@xxxxxxxxxx>]

Correction .. there is no error (except for my copy-paste error). This is
perfect and exactly as I think it should be.



SELECT VERSION(); -- 10.1.8-MariaDB

CREATE DATABASE vctest;
USE vctest;

CREATE TABLE `t1`(
  `id` INT NOT NULL,
  `id3` INT AS ( id*3 ) VIRTUAL
);

INSERT INTO `t1` VALUES (1,3);

SHOW WARNINGS;
-- 1906  The value specified for computed column 'id3' in table 't1' ignored

SELECT * FROM t1;
/*
    id     id3
------  --------
     1         3
*/

On Fri, Nov 6, 2015 at 12:10 PM, Peter Laursen <peter_laursen@xxxxxxxxxx>
wrote:

> yup .. this is good!
>
> SELECT VERSION(); -- 10.1.8-MariaDB
>
> CREATE DATABASE vctest;
> USE vctest;
>
> CREATE TABLE `t1`(
>   `id` INT NOT NULL,
>   `id3` INT AS ( id*3 ) VIRTUAL
> );
>
> INSERT INTO `t1` VALUES (1,3);
> -- retruns: Error Code: 1906 - The value specified for computed column
> 'id3' in table 't1' ignored
>
> SHOW WARNINGS;
> -- 1906  The value specified for computed column 'id3' in table 't1'
> ignored
>
> SELECT * FROM t1;
> /*
>     id     id3
> ------  --------
>      1         3
> */
>
> On Fri, Nov 6, 2015 at 11:52 AM, Ian Gilfillan <ian@xxxxxxxxxxx> wrote:
>
>> The insert statement returns a warning:
>>
>> INSERT INTO `test`.`t1` VALUES (1,3);
>> Query OK, 1 row affected, 1 warning (0.07 sec)
>>
>> Warning (Code 1906): The value specified for computed column 'id3' in
>> table 't1' ignored
>>
>>
>>
>> On 06/11/2015 08:09, Peter Laursen wrote:
>>
>> OK, I should have upgraded. But I am currently travelling an with a small
>> laptop only and an Internet connectivity not fit for downloads (call it a
>> bad excuse if you want! :-) )
>>
>> So it actually INSERTS. That is nice. But does it return an error or
>> warning or nothing? It should not be an error IMO as various clients would
>> 'abort on error' and flood its log with error messages.
>>
>> -- Peter
>>
>> On Fri, Nov 6, 2015 at 11:32 AM, Ian Gilfillan <ian@xxxxxxxxxxx> wrote:
>>
>>>
>>> 06/11/2015 07:51, Peter Laursen wrote:
>>>
>>>> I reported this bug report to Oracle:
>>>> <http://bugs.mysql.com/bug.php?id=79148>
>>>> http://bugs.mysql.com/bug.php?id=79148
>>>>
>>>> It is almost the same in MariaDB - but the error message is different,
>>>> see
>>>>
>>>> SELECT VERSION(); -- 10.1.2-MariaDB-log
>>>>
>>>> CREATE TABLE `vc_test`.`t1`(
>>>>   `id` INT NOT NULL,
>>>>   `id3` INT AS ( id*3 ) VIRTUAL
>>>> );
>>>>
>>>> INSERT INTO `vc_test`.`t1` VALUES (1,3);
>>>> -- retruns: Error Code: 1906 - The value specified for computed column
>>>> 'id3' in table 't1' ignored
>>>>
>>>> SELECT * FROM t1;
>>>> -- returns empty set
>>>>
>>>>
>>>> So here the error message is that "value is ignored" (not that it is
>>>> "not allowed").  It looks to me like somebody in MariaDB actually
>>>> identified the problem, but forgot to finish things.
>>>>
>>>> The statement should succeed (maybe raise a warning), and the
>>>> "specified value should be ignored" as the error message says, but what it
>>>> in reality is not.
>>>>
>>>> What say?
>>>>
>>>
>>> In 10.1.8, the above returns:
>>> SELECT * FROM t1;
>>> +----+------+
>>> | id | id3  |
>>> +----+------+
>>> |  1 |    3 |
>>> +----+------+
>>>
>>>
>>
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>>
>