maria-developers team mailing list archive

[Roberto Spadim <roberto@xxxxxxxxxxxxx>]

humm interesting, does mariadb have the same bugs of mysql? or it's updated
like drizzle?


2013/7/9 Stewart Smith <stewart@xxxxxxxxxxxxxxxx>

> Roberto Spadim <roberto@xxxxxxxxxxxxx> writes:
> > i see that in a near future i will have more than 65535 different values
> > inside this enum column, the first solution is change it to varchar, but
> my
> > problem will be data size
> > the enum is very optimized in size, a char is 'converted' to a smallint
> > value
>
> Note that the real limit is much less than 65535. See
>
> https://www.flamingspork.com/blog/2010/06/29/enum-now-works-properly-in-drizzle/
>
> > my second solution is a int column, and a external table with int/text
> > values, but here i need to change apps, i don't want the second one, but
> i
> > don't want a very big database (char column)
> >
> > how could i change the limit of enum size?
> > maybe a new enum2 type? with a limit of bigint value (64bits), ok maybe
> > less (32bits)
>
> It's probably not a good idea as the whole ENUM values need to always be
> kept in memory, and going to that many is going to mean a *big* chunk of
> memory that will be always used. It's much better to do the join and be
> done with it, it'll end up being a lot more efficient.
>
> --
> Stewart Smith
>



-- 
Roberto Spadim
SPAEmpresarial