Database Query Timeout - Complex Queries Too Slow
Database queries timeout or take too long (>5 seconds). Complex queries with joins or aggregations are slow.
API endpoints that query database time out or users see loading spinners for too long.
Error Messages You Might See
Common Causes
- Missing database indexes on frequently queried columns
- N+1 queries - fetching parent then all children separately
- Fetching more data than needed (select * instead of specific columns)
- Complex joins without proper indexes
- Large result sets without pagination
How to Fix It
Add indexes: CREATE INDEX idx_user_email ON users(email)
Use eager loading: Prisma.findUnique({ include: { posts: true } }) instead of separate queries
Select specific fields: select { id: true, email: true } instead of full objects
Paginate large results: limit 100, offset (page-1)*100
Profile queries: explain analyze SELECT... in database
Cache frequently accessed data: use Redis for hot data
Real developers can help you.
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture.
I played a key role in creating a scalable and maintainable platform to support educators and learners globally.
I'm enthusiastic about embracing new challenges and making meaningful contributions.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Kingsley Omage
Fullstack software engineer passionate about AI Agents, blockchain, LLMs.
Victor Denisov
Developer
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
Jen Jacobsen
I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses.
I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain.
rayush33
JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
How do I know if a query is slow?
Run EXPLAIN ANALYZE in database. Look for sequential scans (bad) vs index scans (good)
What's N+1 query problem?
Fetch 1 user (1 query), then fetch posts for each user (N queries). Use eager loading to do 2 queries total
Should I cache everything?
No, cache hot data. Use Redis for frequently accessed, slow-to-compute results. Set reasonable TTL