Roberto Spadim
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-driz...
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