[Owncloud] MySQL index issue

[Robin Appelman]

On Monday 24 September 2012 18:14:11 Andreas Schneider wrote:
> On Monday 24 September 2012 18:02:06 Andreas Schneider wrote:
> > On Monday 24 September 2012 18:00:16 Andreas Schneider wrote:
> > > Hello,
> > > 
> > > I get the following error:
> > > 
> > > {"app":"core","message":"Failed to update database structure (MDB2
> > > Error:
> > > unknown error, _doQuery: [Error message: Could not execute
> > > statement]\n[Last executed query: CREATE INDEX
> > > `appconfig_appid_key_index` ON `cld_appconfig` (`appid`,
> > > `configkey`)]\n[Native code: 1071]\n[Native message: Specified key was
> > > too long; max key length is 1000
> > > bytes]\n)","level":4,"time":1348502048}
> > > 
> > > The reason for this is cause appid and configkey are varchar(255) and
> > > you
> > > can't index them cause they are two big.
> > > 
> > > See http://bugs.mysql.com/bug.php?id=4541
> > > 
> > > Why needs the appid to be such a big key? Same for the configkey ...
> > 
> > Same for the preferences table with userid, appid and configkey and for
> > sure others.
> 
> In one table the userid is 200 then in the next 100 and 255. This will
> probably not work out.
> 
> 
> Please choose sane values. Suggestions:
> 
> userid 32 chars (who really chooses a username longer than that?)
> appid 32 chars (my_super_duper_mega_cool_app_which_does_nothing is for
>                 sure not a good choice.)
> configkey 64 chars (maybe more)
> 
> 
> 
> 	-- andreas

I changed the lengts to the values you proposed only with 64 characters for 
the userid, which is the current limit.

I would like to change to numeric id's after the next release.

 - Robin Appelman