PostgreSQL Performance
PostgreSQL DBA
PostgreSQL DBA
How To Start Logical Replication in PostgreSQL for Specific Tables Based on a pg_dump?
Starting logical replication in PostgreSQL for specific tables based on a pg_dump involves a series of steps. Here’s a step-by-step guide: CREATE PUBLICATION my_publication FOR TABLE table1, table2, …;ALTER PUBLICATION my_publication ADD TABLE table3, table4, […]
PostgreSQL Internals
Influencing PostgreSQL Query Planner: Understanding Query Hints and Optimizer Barriers
Are you curious why PostgreSQL lacks query hints and how you can still influence execution plans? Discover alternative techniques to force join orders in PostgreSQL and optimize query performance. Why PostgreSQL avoids query hints? Dive […]
PostgreSQL DBA
How to implement Encryption-at-Rest for PostgreSQL in Kubernetes?
Implementing encryption-at-Rest for PostgreSQL in Kubernetes involves configuring encryption for the persistent storage where PostgreSQL data resides. Below is a step-by-step explanation of how to achieve this, along with a real-world example: apiVersion: apps/v1kind: Deploymentmetadata:name: […]
PostgreSQL DBA
SQL/JSON patches committed to PostgreSQL 15!
PostgreSQL SQL/JSON: PostgreSQL continues evolving its support for modern data formats with each release. Notably, PostgreSQL 15 introduces significant improvements to handle JSON data more efficiently. These updates bring greater flexibility, performance, and ease of […]
PostgreSQL DBA
Disaster Recovery for PostgreSQL on Kubernetes: Simplifying Business Continuity
Introduction: In the digital age, businesses cannot afford to overlook the importance of disaster recovery. With increasing reliance on data, system outages or data loss can have catastrophic consequences, leading to significant disruptions and financial […]
PostgreSQL Internals
Know Your Isolation Levels to Develop Optimal and Scalable PostgreSQL-based Applications
Isolation levels in PostgreSQL play a crucial role in ensuring the consistency, performance, and scalability of your applications. By understanding and selecting the appropriate isolation level, you can develop optimal and scalable PostgreSQL-based applications. Let’s […]
PostgreSQL Performance
How to gather statistics of PostgreSQL only when stale?
In PostgreSQL, you can gather statistics only when they become stale by using the pg_stat_statements extension along with the track_activity_query_size configuration parameter. Follow these steps to achieve this: CREATE EXTENSION pg_stat_statements; 3. Query the pg_stat_statements […]
PostgreSQL Internals
Why do I have SQL statement plans in PostgreSQL that change for the worse?
In PostgreSQL, several reasons can cause SQL statement plans to worsen over time. These changes may lead to decreased query performance and unexpected behavior. Below are some common factors that contribute to deteriorating SQL statement […]
PostgreSQL Internals
How to implement Concurrent Statistics Gathering in PostgreSQL?
Concurrent statistics gathering in PostgreSQL allows the system to collect table and column statistics without blocking concurrent read and write operations. As a result, this feature ensures accurate and up-to-date statistics while minimizing the impact […]