Added DB support

sql/backup.pgsql

@@ -1,6 +1,18 @@
-DROP TABLE IF EXISTS users;
+DROP TABLE IF EXISTS users CASCADE;
+DROP TABLE IF EXISTS arrowclicked CASCADE;
 
 CREATE TABLE users (
     id SERIAL PRIMARY KEY,
     name char(50)
 );
+
+-- Create dummy user
+INSERT INTO users(name) VALUES('Thomas');
+
+CREATE TABLE arrowclicked(
+    id SERIAL PRIMARY KEY,
+    user_id SERIAL REFERENCES users (id),
+    time TIMESTAMP DEFAULT NOW(),
+    arrow_id INTEGER
+);
+