order-system/migrations/005_create_payments.sql
ReeseLin bee03ea349 Initial commit: Go + PostgreSQL order management system
- Backend: Go 1.26 + Chi router + pgx v5 (no ORM, hand-written SQL)
- Database: PostgreSQL with 5 tables (users, products, orders, order_items, payments)
- Frontend admin: Vue 3 + Vite + Element Plus
- Docker Compose for PostgreSQL + pgAdmin
- Includes SQL learning docs and seed data
- Endpoints: products CRUD, orders CRUD, reports (daily sales, top products, customer spending)
- New: GET /api/orders/by-date for date-range order query
2026-06-15 17:14:18 +08:00

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SQL

CREATE TABLE IF NOT EXISTS payments (
id BIGSERIAL PRIMARY KEY,
order_id BIGINT NOT NULL REFERENCES orders(id),
amount NUMERIC(12,2) NOT NULL,
method VARCHAR(20) NOT NULL DEFAULT 'wechat',
status VARCHAR(20) NOT NULL DEFAULT 'pending',
created_at TIMESTAMP NOT NULL DEFAULT NOW()
);
CREATE INDEX idx_payments_order_id ON payments(order_id);