PostgreSQL

What is PostgreSQL?

PostgreSQL is a robust, open-source object-relational database system that has been under active development for over 25 years. It runs on all major operating systems, including Linux, UNIX, and Windows, and has earned a strong reputation for reliability, data integrity, and compliance with ACID principles. PostgreSQL supports a wide range of SQL:2008 data types, including numeric, date/time, array, and geometry, and allows developers to define custom data types and functions. The database system provides a rich set of features, such as materialized views, stored procedures, indexing, multi-factor authentication, full-text search, and event triggers, making it a popular choice for new application development. Database administrators can utilize SQL to perform various data operations, including INSERT, UPDATE, and DELETE, and can grant role-based object and column-level permissions. PostgreSQL also maintains a write-ahead log (WAL) to help developers record file changes and restore databases during system crashes. Additionally, IT professionals can access external databases or streams for querying using foreign data wrappers, and administrators can optimize query performance through features like acceleration partition pruning, automatic invalidation of cached execution plans, and controlled bandwidth usage for backup processes

Highlights

• Robust object-relational database system with over 25 years of active development
• Runs on all major operating systems, including Linux, UNIX, and Windows
• Supports a wide range of SQL:2008 data types and allows for custom data types and functions
• Provides features such as materialized views, stored procedures, indexing, multi-factor authentication, full-text search, and event triggers
• Allows for SQL-based data operations (INSERT, UPDATE, DELETE) and role-based object and column-level permissions
• Maintains a write-ahead log (WAL) for data recovery and offers optimization features for query performance and backup processes
• Enables access to external databases or data streams through foreign data wrappers