PostgreSQL
Database
Optimization
Mastering PostgreSQL: Indexing and Query Optimization
Database bottlenecks are often the silent killers of web application performance. This guide walks through practical strategies for analyzing execution plans.
It's easy to spin up a database and start writing queries, but understanding what happens under the hood is what separates a good developer from a great one.
Understanding Execution Plans
Before adding indexes blindly, use EXPLAIN ANALYZE. This command is your best friend. It shows exactly how PostgreSQL plans to execute your query.