๐ Your Django app is slow. Do this before reaching for Raw SQL:
โ
Add indexes to WHERE-heavy fields
โ
Use select_related() / prefetch_related()
โ
Cache expensive queries with Redis
โ
Let the DB do the math: annotate(), aggregate()
โ
Send thousands of rows at once with bulk_create()
๐ When ORM hits the wall, Raw SQL wins at:
โข Complex joins, window functions, geo-batching
โข Mass updates & deletes (millions of rows)
โข Vendor tricks: PostGIS, UNNEST, JSON_TABLE
โข Fine-tuned EXPLAIN-based optimization
๐ง Takeaway:
Use ORM for safety, clarity, and 90% of work.
Use Raw SQL for speed, control, or edge cases โ but wrap in tests and sanitize inputs.
๐ Full breakdown here: https://blog.devgenius.io/django-orm-vs-raw-sql-in-2025-how-to-turbo-charge-your-queries-a61a20f30e39
Top comments (0)