Updated airport data format, dataset, and queries

service/migrations/000000_airports/up.sql

@@ -2,11 +2,11 @@ CREATE EXTENSION IF NOT EXISTS postgis;
 CREATE TABLE IF NOT EXISTS airports (
   icao TEXT PRIMARY KEY NOT NULL,
   category TEXT NOT NULL,
-  full_name TEXT NOT NULL,
+  name TEXT NOT NULL,
+  elevation_ft REAL NOT NULL,
   iso_country TEXT NOT NULL,
   iso_region TEXT NOT NULL,
   municipality TEXT NOT NULL,
-  gps_code TEXT NOT NULL,
   iata_code TEXT NOT NULL,
   local_code TEXT NOT NULL,
   point GEOMETRY(POINT,4326) NOT NULL,