PostgreSQL Performance Tuning: Query Optimization and Indexing

Database Performance Matters

A slow database can kill your application's performance. Let's explore PostgreSQL optimization techniques.

Query Analysis with EXPLAIN

Use EXPLAIN ANALYZE to understand query execution plans and identify bottlenecks.

Index Strategies

Create B-tree, Hash, GiST, and GIN indexes strategically. More indexes isn't always better.

Materialized Views

Pre-compute expensive queries using materialized views and refresh them periodically.

Connection Pooling

Use PgBouncer or built-in pooling to manage database connections efficiently.

Partitioning

Partition large tables by date or other criteria to improve query performance and maintenance.