Gii Not Generates Normal Mysql Decimal Rules

Hi,

The gii generates for mysql Decimal types the rule

array('length', 'max' => 'a number') 

(according of digits) in the Model
instead of float type that adds

array('merchant_price', 'type', 'type'=>'float')

, (I read that in another post - I din't tested it)

In normal way the gii should be generates for decimal type the same thing that float type does

what is the problem ?

Thanks