PostgreSQL: The world's most advanced open source database
The official site for PostgreSQL, the world's most advanced open source database
Downloads - PostgreSQL
Nov 13, 2025 · PostgreSQL is available for download as ready-to-use packages or installers for various platforms, as well as a source code archive if you want to build it yourself.
Documentation - PostgreSQL
November 13, 2025: PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 Released!
About - PostgreSQL
Nov 13, 2025 · PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale …
PostgreSQL 18.1 Documentation
Nov 13, 2025 · Preface 1. What Is PostgreSQL? 2. A Brief History of PostgreSQL 3. Conventions 4. Further Information 5. Bug Reporting Guidelines I. Tutorial 1. Getting Started 2. The SQL …
PostgreSQL: Documentation: 18: 1. What Is PostgreSQL?
Nov 13, 2025 · PostgreSQL is an object-relational database management system (ORDBMS) based on POSTGRES, Version 4.2, developed at the University of California at Berkeley …
PostgreSQL: Documentation: 18: Chapter 1. Getting Started
Nov 13, 2025 · Chapter 1. Getting Started Table of Contents 1.1. Installation 1.2. Architectural Fundamentals 1.3. Creating a Database 1.4. Accessing a Database Prev …
Tutorials & Other Resources - PostgreSQL
Nov 13, 2025 · PostgreSQL: Tutorials & Other ResourcesTutorials & Other Resources
9.2. Comparison Functions and Operators - PostgreSQL
Nov 13, 2025 · If it is enabled, PostgreSQL will convert x = NULL clauses to x IS NULL. If the expression is row-valued, then IS NULL is true when the row expression itself is null or when …
PostgreSQL 17.5, 16.9, 15.13, 14.18, and 13.21 Released!
May 8, 2025 · The PostgreSQL Global Development Group has released an update to all supported versions of PostgreSQL, including 17.5, 16.9, 15.13, 14.18, and 13.21. This release …