CREATE TABLE employee (eid DECIMAL, name VARCHAR, salary DECIMAL)
CREATE TABLE certificate (eid DECIMAL, aid DECIMAL)
CREATE TABLE aircraft (aid DECIMAL, name VARCHAR, distance DECIMAL)
CREATE TABLE flight (flno DECIMAL, origin VARCHAR, destination VARCHAR, distance DECIMAL, departure_date DATE, arrival_date DATE, price DECIMAL, aid DECIMAL)

How many flights in each destination city? Return a bar chart.
SELECT destination, COUNT(destination) FROM flight GROUP BY destination
SELECT "destination", COUNT("destination") FROM "flight" GROUP BY "destination"