Let AutoStation use index name

db/migrate/2_create_auto_station_ten_mins.rb

@@ -20,7 +20,7 @@ class CreateTenMinAutoStations < ActiveRecord::Migration[5.0]
     end
 
     add_index :auto_station_ten_mins, :datetime
-    add_index :auto_station_ten_mins, :sitenumber
+    add_index :auto_station_ten_mins, :name
   end
 
   def down

lib/weather-model/source_schemas/autostation.rb → lib/weather-model/source_schemas/auto_station.rb

@@ -21,7 +21,7 @@ module WeatherModel
           pressure: :string,
         },
         options: {
-          index: %i[datetime sitenumber],
+          index: %i[datetime name],
           expire: 4 * 60 * 60,
           unique: nil,
           father: nil,