Add support for satellite tiles, with caching

db/migrations/00142_tile_image_provider.sql

@@ -0,0 +1,25 @@
+-- +goose Up
+CREATE TABLE tile.service (
+	id SERIAL,
+	name TEXT NOT NULL,
+	arcgis_id TEXT REFERENCES arcgis.service_map(arcgis_id),
+	PRIMARY KEY(id)
+);
+
+INSERT INTO tile.service (name, arcgis_id)
+	SELECT name, arcgis_id
+	FROM arcgis.service_map;
+
+ALTER TABLE tile.cached_image ADD COLUMN service_id INTEGER REFERENCES tile.service(id);
+
+UPDATE tile.cached_image
+SET service_id = tile.service.id
+FROM tile.service
+WHERE tile.service.arcgis_id = tile.cached_image.arcgis_id;
+
+ALTER TABLE tile.cached_image 
+	DROP CONSTRAINT cached_image_pkey,
+	ALTER COLUMN arcgis_id DROP NOT NULL,
+	ALTER COLUMN service_id SET NOT NULL,
+	ADD PRIMARY KEY (service_id, x, y, z),
+	DROP COLUMN arcgis_id;

db/migrations/00143_tile_service_stadia.sql

@@ -0,0 +1,7 @@
+-- +goose Up
+INSERT INTO tile.service (name, arcgis_id) VALUES ('stadia', NULL);
+ALTER TABLE tile.service
+	ADD CONSTRAINT service_name_unique UNIQUE (name);
+-- +goose Down
+ALTER TABLE tile.service DROP CONSTRAINT service_name_unique;
+DELETE FROM tile.service WHERE name = 'stadia';