CBQE-0: index catalog query structure is changed

Change-Id: I1c83c50691d84acbe9e232e7ad29f1df23953e0a
Reviewed-on: http://review.couchbase.org/44458
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>