Database Query Caching Layer

Implement query caching for:

Database: [PostgreSQL/MySQL/MongoDB]
Cache Store: [Redis/Memcached]
Framework: [Express/FastAPI/Django/etc.]
ORM: [Prisma/TypeORM/SQLAlchemy/etc.]

Queries to Cache:
[DESCRIBE EXPENSIVE/FREQUENT QUERIES]

Requirements:
- Cache invalidation triggers: [LIST]
- TTL strategy: [FIXED/DYNAMIC]
- Cache-aside vs. read-through: [PREFERENCE]

Please provide:
1. Caching layer architecture
2. Cache key generation strategy
3. Implementation code with ORM integration
4. Invalidation logic implementation
5. Cache warming strategies
6. Monitoring cache hit rates