PostgreSQL Internals

Parallel Labeling for Functions and Aggregation Parallel Labeling for Functions and Aggregation is a feature in PostgreSQL that allows certain functions and aggregations to run in parallel. It utilizes multiple CPUs and cores to speed […]

In PostgreSQL, background processes play a crucial role in managing various tasks that are essential for the database to function efficiently. These background processes are responsible for handling maintenance tasks, background jobs, and other critical […]

PostgreSQL Process and Memory Architecture: PostgreSQL is a multi-process, multi-threaded relational database management system. It consists of various processes and uses a combination of shared and private memory to manage data and provide concurrent access to […]

Introduction: Configuring the PostgreSQL configuration file plays a crucial role in optimizing database performance, stability, and security. However, you must recognize potential pitfalls in the default settings. Some default values do not suit all environments […]

In PostgreSQL, a clustered index works through a feature called “clustered table” or “clustered index scan.” It physically reorders a table’s rows based on the indexed column(s). This process directly determines how PostgreSQL organizes data […]

Process Memory Protection in PostgreSQL Process memory protection in PostgreSQL is primarily implemented through the use of memory management techniques provided by the operating system. PostgreSQL relies on the underlying operating system’s memory management capabilities […]

PostgreSQL Waits In PostgreSQL, backup-related waits occur when performing database backups with tools like pg_dump or pg_basebackup. These waits usually stem from I/O operations since the process involves reading data from disk and writing it […]