Hi to all

I've created an index based on a UserDefinedFunction, index is like this:

fnMyFunction(fieldToIndex)

I do a SELECT SQL like this:

SELECT * FROM myTable WHERE fnMyFunction(fieldToIndex) = fnMyFunction(keyToSearch)

Is this query Rushmore optimizable ?

PS: I try with SYS(3054,1) and I've optimization level = none
but on a whitepaper I've found that index based on a Udf is optimizable.
SET OPTIMIZE is ON

Thanks in advance,
Renato