November 4, 2025
Master the art of troubleshooting and repairing PostgreSQL indexes with this comprehensive guide. Learn to identify bloated or corrupted indexes using built-in tools like `pg_stat_user_indexes` and `EXPLAIN ANALYZE`. This article provides step-by-step instructions on using the `REINDEX` command, including its `CONCURRENTLY` option, to rebuild indexes efficiently with minimal downtime. Discover related maintenance commands, best practices for proactive upkeep, and crucial warnings to ensure optimal query performance and database health.
Learn the psql meta-commands that help you inspect schemas, format output, switch databases, and work faster from the terminal.
Manage PostgreSQL roles, group membership, grants, revokes, default privileges, and permission audits with practical SQL examples.
Use pg_stat_activity to find active PostgreSQL queries, long transactions, lock waits, and sessions that need cancellation.
Master PostgreSQL data protection with this comprehensive guide to `pg_dump` and `pg_restore`. Learn how to create reliable database backups using various formats, including plain-text, custom, and directory. Discover essential options for efficient dumping and explore step-by-step instructions for restoring your data. This tutorial covers best practices for scheduling, testing, and securely managing your PostgreSQL backups to ensure data integrity and recovery capabilities.