updates

service/migrations/000002_airport_metar_cache/down.sql

@@ -0,0 +1 @@
+DROP TABLE airport_metar_cache;

service/migrations/000002_airport_metar_cache/up.sql

@@ -0,0 +1,5 @@
+CREATE TABLE IF NOT EXISTS airport_metar_cache (
+  icao TEXT PRIMARY KEY NOT NULL,
+  has_metar BOOLEAN NOT NULL DEFAULT FALSE,
+  last_checked TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+);