11.5. Combining Multiple Indexes # A single index scan can only use query clauses that use the index's columns with operators …| PostgreSQL Documentation
PostgreSQL database queries are a common performance bottleneck for web apps. Before you resort to more complex optimization techniques like caching or read replicas, you should double-check if your database engine does not need tuning and queries are not underperforming. In this blog post, I present a step by step guide on using PG Extras library to spot and resolve common PostgreSQL database performance issues.| Rails, PostgreSQL Performance and Scalability Blog
The guide describes all the steps required to safely migrate your Heroku PostgreSQL database to AWS RDS. Zero prior AWS experience is required to complete the guide. All the steps are described in a detailed way together with code snippets and AWS console screenshots. The guide is written in a programming language-agnostic way, so it applies to all the backend technologies hosted on Heroku.| Rails, PostgreSQL Performance Audit and Tuning Consultant for Hire