I'm trying to build a query on a multidimensional array field, for example:
The array is organized as {key, value}.

{{'username','daniel'},{'first_name',''},{'middle_ name',''},{'last_name',''},{'mailserver_guid','1'} ,{'number_of_mailaliases','1'}......}.

Is there any way of searching , let's say for all username = daniel, without depending on indexes ???
This is very useful to avoid issues like modifying array structure.

Thanks in advance for any ideas !