CBQE-1786:tuq: over clause syntax changed

Change-Id: Ia10efb15ef7f5e7484af7858f00d8c2ce744938d
Reviewed-on: http://review.couchbase.org/31212
Reviewed-by: Iryna Mironava <irynamironava@yandex.ru>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>