PostgreSQL Performance Hack – Index Only Scans
🔧 PostgreSQL Performance Hack: Supercharge Reads with Index-Only Scans
If you're looking to optimize read-heavy queries in PostgreSQL, this video is for you! In this step-by-step tutorial, Sanjai Kumar shows how to use Index-Only Scans to reduce disk I/O and boost performance—especially for large tables and analytics workloads.
🧪 What You'll Learn in This Video:
What are Index-Only Scans in PostgreSQL?
How to build a covering index for faster reads
How to verify if your query uses index-only scans
Using pg_stat_statements to find high-impact queries
Checking indexed columns with internal catalog views
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Access the source code including all SQLs in video demo from link : https://sanjaikumar15.my.canva.site/p...