but, i think that "get_mm_leaf" function, only execute when we are on a 'indexed field'

anyone know if there's a rewriter before get_mm_leaf and others index optimization?

maybe it do something that change:

a>10 and a< 12

to

a=11

i will use it to do enum rewrite in WHERE part, like:

enum('a','b','c') not null

enum='d' => will be rewrite to 0 (impossible where)

enum!='d' => will be rewrite to 1 (always true)

enum <'b' => will be rewrite to enum in (0,1)

enum >'c' => will be rewrite to 0 (impossible where)

and others inequalities operators "LIKE", !=, <, <=, >, >=

thanks