-none- 2007-10-12 - By Adam Randall
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Oh, and here's the output (Sorry):
+-- ---- ---+-- ---- ---- ---- ---+
| releaseid | name |
+-- ---- ---+-- ---- ---- ---- ---+
| 1 | Unspecified |
| 2 | Next Patch |
| 3 | LOCset |
| 4 | Abashiri |
| 5 | 4.6.0 (Folsom) |
| 13 | 4.5.10 |
| 6 | 4.5.9 |
| 7 | 4.5.6 |
| 9 | 4.5.5 |
| 8 | 4.5.5 (Purdy) |
| 10 | 4.5.4 |
| 11 | 4.5.3 |
| 12 | 4.5.2 |
| 14 | 4.5.1 Deferred |
| 15 | 4.5.1 (Leavenworth) |
| 16 | 4.2.7.4 |
| 17 | 4.2.7.3 |
| 18 | 4.2.7.2 |
| 19 | 4.2.7.1 |
| 20 | 4.2.7.0 |
+-- ---- ---+-- ---- ---- ---- ---+
20 rows in set (0.00 sec)
Adam.
On Oct 12, 2007, at 3:56 PM, Adam Randall wrote:
> Here's my full test solution:
>
> use test;
>
> drop table if exists releases;
> create temporary table releases
> (
> releaseid int(10) unsigned not null auto_increment primary key,
> name varchar(255)
> )engine=myisam;
>
> insert into releases ( name ) values
> ( 'Unspecified' ),
> ( 'Next Patch' ),
> ( 'LOCset' ),
> ( 'Abashiri' ),
> ( '4.6.0 (Folsom)' ),
> ( '4.5.9' ),
> ( '4.5.6' ),
> ( '4.5.5 (Purdy)' ),
> ( '4.5.5' ),
> ( '4.5.4' ),
> ( '4.5.3' ),
> ( '4.5.2' ),
> ( '4.5.10' ),
> ( '4.5.1 Deferred' ),
> ( '4.5.1 (Leavenworth)' ),
> ( '4.2.7.4' ),
> ( '4.2.7.3' ),
> ( '4.2.7.2' ),
> ( '4.2.7.1' ),
> ( '4.2.7.0' );
>
> select
> releaseid,
> name
> from
> releases
> order by
> case name
> when 'Unspecified' then 0
> when 'Next Patch' then 1
> when 'LOCset' then 2
> else 10
> end,
> if(
> locate( ' ', name ) > 0 and locate( '.', name ) > 0,
> inet_aton( substr( name, 1, locate( ' ', name ) - 1 ) ),
> if(
> locate( '.', name ) > 0,
> inet_aton( name ),
> 4294967295 ) ) desc,
> if(
> locate( ' ', name ) > 0 and locate( '.', name ) > 0,
> replace( replace( substr( name, locate( ' ', name ) + 1 ), '(',
> '' ), ')', '' ),
> if(
> locate( '.', name ) = 0,
> name,
> null ) );
>
> This is the end result after talking to Daevid and finding out what
> the ultimate goal was. I think it's kind of clever myself :)
>
> Yes, there's no possibility of indexing here, but it gets the job
> done.
>
> Adam.
>
> On Oct 12, 2007, at 12:39 PM, Daevid Vincent wrote:
>
>>
>> I'm trying to get some 'release/version numbers' to sort properly.
>>
>> mysql> SELECT ReleaseID, Name FROM releases ORDER BY Name DESC;
>> +-- ---- ---+-- ---- ---- ---- ---+
>> | ReleaseID | Name |
>> +-- ---- ---+-- ---- ---- ---- ---+
>> | 18 | Unspecified |
>> | 20 | Next Patch |
>> | 58 | LOCset |
>> | 74 | Abashiri |
>> | 54 | 4.6.0 (Folsom) |
>> <-- 4.5.10 should be here
>> | 99 | 4.5.9 |
>> | 98 | 4.5.6 |
>> | 93 | 4.5.5 (Purdy) |
>> | 97 | 4.5.4 |
>> | 96 | 4.5.3 |
>> | 94 | 4.5.2 |
>> | 100 | 4.5.10 | <-- should be ^ there
>> | 91 | 4.5.1 Deferred |
>> | 78 | 4.5.1 (Leavenworth) |
>> | 95 | 4.2.7.4 |
>> | 92 | 4.2.7.3 |
>> | 90 | 4.2.7.2 |
>> | 87 | 4.2.7.1 |
>> | 88 | 4.2.7.0 |
>>
>> I like this order, especially with the top four,
>> except for that 4.5.10 should be higher up,
>> just under 4.6.0, not under 4.5.2 as it is now.
>>
>> So I tried the " + 0 " trick which makes things even worse
>> (notice the 4.2.6.1 and 4.2.6.0 -- yipes!):
>>
>> mysql> SELECT ReleaseID, Name FROM releases ORDER BY Name + 0 DESC;
>> +-- ---- ---+-- ---- ---- ---- ---+
>> | ReleaseID | Name |
>> +-- ---- ---+-- ---- ---- ---- ---+
>> ....(18,20,58,74) are moved
>> :(
>> | 54 | 4.6.0 (Folsom) |
>> | 78 | 4.5.1 (Leavenworth) |
>> | 100 | 4.5.10 |
>> | 91 | 4.5.1 Deferred |
>> | 93 | 4.5.5 (Purdy) |
>> | 94 | 4.5.2 |
>> | 96 | 4.5.3 |
>> | 97 | 4.5.4 |
>> | 98 | 4.5.6 |
>> | 99 | 4.5.9 |
>> | 82 | 4.2.6.1 | << ?
>> | 76 | 4.2.2 |
>> | 75 | 4.2.4 |
>> | 72 | 4.2.1 |
>> | 73 | 4.2.3 |
>> | 67 | 4.2.6.0 | << ?
>>
>>
>> I'm pretty sure this is going to involve some sort of splitting
>> the version
>> from the release codeword via some string functions, and then
>> operating on
>> that part.
>>
>>
>> D.Vin
>> http://daevid.com
>> ---
>> eval() is my favorite templating engine.
>>
>>
>>
>> --
>> MySQL General Mailing List
>> For list archives: http://lists.mysql.com/mysql
>> To unsubscribe: http://lists.mysql.com/mysql?
>> unsub=randalla@(protected)
>>
>
>
> --
> Adam Randall
> randalla@(protected)
>
>
>
>
> --
> MySQL General Mailing List
> For list archives: http://lists.mysql.com/mysql
> To unsubscribe: http://lists.mysql.com/mysql?unsub=randalla@(protected)
>
--
Adam Randall
randalla@(protected)
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