How to Improve ActiveRecord Performance with Subquery Caching

06/08/2020
1.123

Slow database queries are a common performance bottleneck for Ruby on Rails apps. Simplifying a complex query is often not possible due to the underlying business logic. Instead, you can extract parts of a query, cache and reuse them to improve performance. In this tutorial, I’ll describe a range of techniques on how to do it.We will cover more advanced ActiveRecord and PostgreSQL topics like EXPLAIN ANALYZE, and query plan visualizer tool.Let’s get started!.
How to Improve ActiveRecord Performance with Subquery Caching #ruby #rubydeveloper #rubyonrails #activerecord #performance https://rubyonrails.ba/single/how-to-improve-activerecord-performance-with-subquery-caching