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;
What about ORDER BY REPLACE(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.
>
>
>
