Welcome to part two of our exploration of Postgres indexes. Be sure to check out part one if you haven’t already. We’ll be picking up exactly where we left off. We have the same books table as before, containing approximately 90 million records. Editors’ note: Need to bone up on PostgreSQL all around? Our course […]

Frontend Masters is an online learning platform offering  courses on frontend development technologies such as JavaScript, HTML, CSS, React, and Vue.js. Readers can learn about advanced frontend concepts, best practices, and modern development workflows from industry experts. With video lectures, exercises, and real-world projects, Frontend Masters provides  guidance and expertise for mastering frontend development skills.

Frontend Masters

Explores advanced PostgreSQL indexing techniques for multi-key queries and performance optimization. Demonstrates how to create composite indexes on publisher and title columns to dramatically improve query performance from seconds to milliseconds. Shows practical solutions for querying multiple publishers using CTEs and lateral joins, explaining when and why different execution plans are chosen. Provides real-world examples with a 90-million record books table, illustrating how proper index design and query structure can achieve sub-millisecond performance even with complex multi-publisher queries.

Advanced PostgreSQL Indexing: Multi-Key Queries and Performance Optimization – Frontend Masters Blog