QueryCraft

Master PostgreSQL query optimization with hands-on mentorship from a full-stack JavaScript engineer. Go from writing slow queries to...
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@fessrickertProfile pictureJun 3
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🚀 Welcome to PostgreSQL Query Optimization Mastery

Stop Guessing. Start Optimizing.


If you're a JavaScript developer working with PostgreSQL and tired of slow queries killing your app's performance, this course is for you.


What You'll Master


6 Modules. 15 Lessons. Zero fluff.


  1. PostgreSQL Internals — Understand how PG actually executes your queries, MVCC, vacuum, and the buffer cache

  2. EXPLAIN ANALYZE — Read execution plans like a pro. Spot the difference between estimated and actual costs.

  3. Indexing Strategies — B-Tree, GIN, GiST — know which index to use and when. Plus the anti-patterns killing your performance.

  4. Query Patterns — JOIN optimization, CTEs vs subqueries, window functions, and pagination that doesn't collapse at scale

  5. Production Architecture — Connection pooling with PgBouncer, table partitioning, and continuous monitoring

  6. Real-World Case Studies — E-commerce search optimization, solving N+1 queries in Node.js, and a final assessment


Who This Is For


Intermediate to senior JavaScript developers who:

  • Ship production PostgreSQL but don't fully understand what happens after await pool.query()

  • Have queries that "work" but take 500ms+ when they should take 5ms

  • Want to stop guessing and start reading EXPLAIN ANALYZE like a database engineer


Format


  • Sequential lessons — each builds on the last

  • Real SQL examples you can run locally

  • Certificate of completion

  • Community chat for plan reviews and Q&A


$288/month with a 1-day free trial. Cancel anytime.


Ready to eliminate slow queries? 🔥