findDevice tuned

schema/createSchema.sql

@@ -0,0 +1,8 @@
+CREATE SEQUENCE device_s START WITH 1 INCREMENT BY 1;
+
+CREATE TABLE device_t (
+    id integer PRIMARY KEY DEFAULT NEXTVAL('device_s'),
+    deviceid varchar(16) NOT NULL,
+    sharedsecret varchar(31) NOT NULL,
+    active boolean NOT NULL DEFAULT false
+);