minimal working example with diesel

migrations/2026-01-28-134347-0000_locations/down.sql

@@ -0,0 +1,2 @@
+DROP TABLE locations;
+DROP TYPE battery_status_enum CASCADE

migrations/2026-01-28-134347-0000_locations/up.sql

@@ -0,0 +1,18 @@
+CREATE TYPE battery_status_enum AS ENUM ('unknown', 'unplugged', 'charging', 'full');
+
+CREATE TABLE locations (
+    timestamp bigint PRIMARY KEY,
+    latitude numeric(9,6) NOT NULL,
+    longitude numeric(9,6) NOT NULL,
+    accuracy numeric(7,2) NOT NULL,
+    altitude numeric(7,2),
+    velocity numeric(7,2),
+    battery_level smallint NOT NULL,
+    bearing numeric(6,3),
+    battery_status battery_status_enum DEFAULT 'unknown' NOT NULL,
+    CONSTRAINT Location_battery_level_check CHECK ((battery_level >= 0) AND (battery_level <= 100)),
+    CONSTRAINT Location_bearing_check CHECK ((bearing >= (0)::numeric) AND (bearing <= (360)::numeric))
+)
+WITH (oids = false);
+
+CREATE INDEX locations_timestamp ON locations USING btree (timestamp);