User case insensitive search

[Adrian Gonzalez]

Hello,
I'd like to execute a case insensitive search in Syncope.
i.e. querying all users with an attribute givenName that matches  'martin' 
would return :MartinmartinmArtin
Is there a way to do this with a Fiql search ?i.e. something like 
UPPER(givenName) = UPPER('martin') ?
If no are there other ways to do this ?If no, I can always store givenName 
attribute in 2 different attributes (i.e. the real givenName attribute and a 
givenNameCaseInsensitive attribute to store it in lowercase), but I would like 
to avoid it if possible.
Thanks,Adrian