CREATE TABLE IF NOT EXISTS users (
  id SERIAL PRIMARY KEY,
  name VARCHAR(64) NOT NULL,
  email VARCHAR(128),
  status SMALLINT NOT NULL DEFAULT 1,
  created_at TIMESTAMPTZ DEFAULT NOW()
);
CREATE TABLE IF NOT EXISTS orders (
  id SERIAL PRIMARY KEY,
  user_id INT NOT NULL,
  amount NUMERIC(12,2) NOT NULL DEFAULT 0,
  status VARCHAR(16) NOT NULL DEFAULT 'pending',
  created_at TIMESTAMPTZ DEFAULT NOW()
);
CREATE TABLE IF NOT EXISTS order_items (
  id SERIAL PRIMARY KEY,
  order_id INT NOT NULL,
  sku VARCHAR(64) NOT NULL,
  qty INT NOT NULL DEFAULT 1,
  price NUMERIC(12,2) NOT NULL DEFAULT 0
);
TRUNCATE order_items, orders, users RESTART IDENTITY;
INSERT INTO users (name, email, status) VALUES
  ('alice', 'alice@demo.local', 1),
  ('bob', 'bob@demo.local', 1),
  ('carol', 'carol@demo.local', 1),
  ('dave', 'dave@demo.local', 0),
  ('erin', 'erin@demo.local', 1);
INSERT INTO orders (user_id, amount, status) VALUES
  (1, 99.50, 'paid'), (1, 12.00, 'pending'), (2, 250.00, 'paid'), (3, 8.80, 'cancelled'), (5, 41.20, 'paid');
INSERT INTO order_items (order_id, sku, qty, price) VALUES
  (1, 'SKU-A', 1, 99.50), (2, 'SKU-B', 2, 6.00), (3, 'SKU-C', 5, 50.00), (4, 'SKU-D', 1, 8.80), (5, 'SKU-E', 2, 20.60);