CQL for querying data

Dear Colleagues,
Thanks for the great presentations and meeting notes from todays
meeting.
I am curious if CQL  [SearchRetrievePt5]  has
been considered for querying data. CQL can easily handle queries
involving multiple predicates and is quite simple, elegant and
intuitive to use (and implement). In my experience filter based
querying mechanism are complex, klunky and hard to use (and
implement ).
[SearchRetrievePt5]
searchRetrieve: Part 5. CQL: The Contextual Query Language
Version 1.0 . 13 April 2012. OASIS Committee Specification 01.
http://docs.oasis-open.org/search-ws/searchRetrieve/v1.0/cs01/part5-cql/searchRetrieve-v1.0-cs01-part5-cql.html .

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Regards, Farrukh Najmi  Web:  http://www.wellfleetsoftware.com