Kerala Plane Crash: What is tabletop runway? Is it safe?

After the Kerala Plane crash, questions over the safety of tabletop runways have raised. 
Watch the video to know about tabletop runways. 

An Air India Express flight, returning from Dubai under the Vande Bharat mission, crashed at the 'tabletop' Kozhikode airport on Friday evening, leaving at least 18, of the 190 people aboard, dead including pilot and his co-pilot.