Django ORM Query Optimization

Enforces Django ORM best practices for optimal database performance: select_related for ForeignKey, prefetch_related for ManyToMany, always order_by(), database indexes on filtered fields. Auto-activates on: ORM, query, select_related, prefetch_related, N+1, index, database, optimization, queryset. Prevents N+1 queries, missing order_by(), unindexed filters, inefficient queries. Ensures select_related for joins, prefetch_related for collections, order_by() on all queries, db_index=True on filtered fields. Targets: 0 N+1 queries, <100ms query time, proper indexing.